Dissertations / Theses on the topic 'Building information modelling and management'

As the usage of both BIM (Building Information Modelling) and 3D-GIS (Three-Dimensional Geographic Information Systems) has increased within the field of urban development and construction, so has the interest in connecting these two tools.  One possibility of integration is the potential of visualising BIM models together with other spatial data in 3D. Another is to be able to perform spatial 3D analyses on the models. Both of these can be achieved through use of GIS software. This study explores how integration of BIM and GIS could look. The goal was to perform typical GIS analyses in 3D on BIM models. Previous research points towards some success within the field through use of the indicated standard format for each tool – IFC (Industry Foundation Classes) for BIM and CityGML (City Geographic Markup Language) for GIS. Transformation between the formats took place through use of the BIM software Revit, the transformation tool FME and the GIS software ArcGIS. A couple of reviewed applications of GIS analyses were chosen for testing on the converted models – indoor network analysis, visibility analysis and spatial analysis for 3D buildings. The input data in the study was several BIM models, both models created for real-life usage and others that only function as sample data within the different software. From the results of the practical work it can be concluded that a simple, automated and full-scale integration does not seem to be within reach quite yet. Most transformations between IFC and CityGML failed to some extent, especially the more detailed and complex ones. In some test cases, the file could not be imported into ArcGIS and in others geometries were missing or existing even though they should not. There were also examples where geometries had been moved during the process. As a consequence of these problems, most analyses failed or did not give meaningful results. A few of the original analyses did give positive results. Combining (flawed) CityGML models with other spatial data for visualisation purposes worked rather well. Both the shadow volume and sightline analyses did also get reasonable results which indicates that there might be a future for those applications. The obstacles for a full-scale integration identified during the work were divided into four different categories. The first is BIM usage and routines where created models need to be of high quality if the final results are to be correct. The second are problems concerning the level of detail, especially the lack of common definitions for the amount of details and information. The third category concerns the connection between local and global coordinate systems where a solution in form of updates to IFC might already be in place. The fourth, and largest, category contains those surrounding the different formats and software used. Here, focus should lie on the transformation between IFC and CityGML. There are plenty of possible, future, work concerning these different problems. There is also potential in developing own tools for integration or performing different analyses than those chosen for this thesis.
I takt med den ökade användningen av både BIM och 3D-GIS inom samhällsbyggnadsprocessen har även intresset för att sammanföra de två verktygen blivit större. En möjlighet med integration är potentialen att visualisera BIM-modeller tillsammans med andra geografiska data i 3D. En annan är att kunna genomföra rumsliga 3D-analyser på modellerna. Båda dessa går att utföra med hjälp av GIS-programvara. Denna studie utforskar hur en integration mellan BIM och GIS kan se ut. Målet är att genomföra typiska GIS-analyser i 3D på BIM-modeller. Tidigare forskning pekar mot vissa framgångar inom området genom att arbeta med det utpekade standardformatet för respektive verktyg – IFC för BIM och CityGML för GIS. Transformation mellan formaten skedde med hjälp av programvarorna Revit, FME och ArcGIS. Ett par framhållna tillämpningar av GIS-analyser valdes ut för tester på de konverterade modellerna – nätverksanalyser inomhus, siktanalyser och rumsliga analyser för 3D-byggnader. Som indata användes flera olika BIM-modeller, både sådana som tillverkats för faktisk användning och modeller som skapats för att användas som exempeldata inom programvarorna. Utifrån resultaten från det praktiska arbetet kan konstateras att en enkel, automatiserad och fullskalig integration mellan verktygen verkar ligga en bit in i framtiden. De flesta transformationerna mellan IFC och CityGML misslyckades i någon aspekt, speciellt de mer detaljerade och komplexa. I vissa testfall kunde filen inte importeras i ArcGIS, i andra saknas eller existerar oväntade geometrier även om importen lyckats. Det finns också exempel där geometrier förflyttats. Som en konsekvens av dessa problem kunde de flesta 3D-analyser inte genomföras alls eller lyckades inte ge betydelsefulla resultat. Ett fåtal av de ursprungliga analyserna gav dock positiv utdelning. Att kombinera (felaktiga) CityGML-modeller med annan rumslig data fungerade förhållandevis väl ur ett visualiseringssyfte. Både skuggvolymsanalysen och framtagandet av siktlinjer från byggnaderna gav någorlunda korrekta resultat vilket indikerar att det kan finnas en framtid gällande de tillämpningarna. Hindren för en fullskalig integration som identifierades genom arbetet delades upp i fyra olika kategorier. Den första är BIM-användning där hög kvalitet på de skapade modellerna är viktigt för korrekta slutresultat. Den andra är detaljeringsgraden där avsaknaden av gemensamma definitioner för detaljeringsgraderna ställer till problem. Den tredje kategorin är koordinat- och referenssystem där en lösning på kopplingen mellan lokala och globala system redan kan finnas på plats i en av de senare utgåvorna av IFC-formatet. Den sista och största kategorin är problematiken kring just format och programvaror där mer arbete på översättningen mellan IFC och CityGML kommer att krävas. I framtiden finns det gott om arbete att göra med dessa olika problem. Det finns också potential att utveckla egna verktyg för integrationen eller att ägna sig åt att göra andra analyser än de som valdes ut i den här studien.

Architectural practice, although its first objective is providing a design value, is nevertheless a business branch. Creative work of architects needs formal managerial guidelines and principles in order to ensure financial profitability of the firm. One of the challenges of architectural management is carrying through innovative solutions.  A prominent example of a recent innovation in architecture, engineering and construction industry (AEC) is Building Information Modelling (BIM). In Sweden BIM regulations supporting its further diffusion across the industry were first established in 2013. The research indicates managerial practices which are crucial for the successful implementation of BIM in Swedish architectural offices and consequently bring significant business benefits to its adopters.

This research aims at improving construction management through simultaneous implementation of Lean Construction and Building Information Modelling. Specifically, the area of production management and control is addressed by developing a prototype software system that supports Lean Construction processes and provides a visual interface through Building Information Modelling. The research addresses a practically relevant problem, and follows the Design Science Research method. The first stage of the research explores the problem area through the author’s own observation of industrial practice, and also through a literature review. At the broad level, a two-fold problem is identified; first the problems with the production management process itself, and second the problems with visualisation and management of the product model and its integration with the production management. At the fundamental level, it is found that many of these problems are linked with the deficient theory behind production, which is predominantly based on the “Transformation” view of production. Additionally, it is found that the previous attempts at solving the problems of construction management through information systems have only met with limited success as they mostly address the peripheral processes rather than the core area of production management. The second stage of the research explores and puts forward potential solutions to overcome the problems of production management. Lean Construction is identified as a partial solution to the production planning and control process. Specifically, the Last Planner SystemTM of production control is found to improve the productivity and efficiency of the production process by reducing variability, improving reliability and collaboration and introducing continuous improvement. At the same time, it is found that Building Information Modelling helps overcome many of the problems found with the traditional product management techniques (such as 2D and 3D CAD), by providing an object oriented, parametric and visual representation of the product. It is also found that the application of Building Information Modelling is relevant to all aspects of the construction process. Through a conceptual analysis, significant synergies between Lean Construction and Building Information Modelling are identified, with applications also spanning the entire construction lifecycle. Specific benefits to the production management process are also found, backed by empirical evidence. However, it is also found that the current Building Information Modelling systems do not fully support an integrated implementation of production management. This particular aspect of an integrated and visual system, which would support the core production management process, is identified as a potential solution area. The third stage of the research is dedicated to the design and development of a software system called VisiLean, which provides a collaborative planning and control platform, which is integrated with the Building Information Modelling platform, and which supports the production management process. A prototype system is developed through an iterative and incremental process, through simultaneous feedback, evaluation and review. The fourth stage of the research includes the evaluation of the VisiLean prototype through a demonstration and feedback process. At this stage, the design, development and evaluation process is analyzed and discussed. Finally, the contributions to the theory and the body of knowledge are identified, along with the suggestions for future development.

Within the last decade BIM technology products have been providing the construction industry with various tools that can be used in all construction phases and aspects with a wide set of potentials that range from visualization to simulation, scheduling and cost estimation (Kam , et al., 2016). As a result, the term BIM started to have new interpretation from a process- oriented perspective beside the product-oriented interpretation. These different interpretations and definitions of BIM creates an ambiguity regarding BIM. The ambiguity about what is BIM takes another direction when the term “Virtual Design and Constructions” VDC is used as synonym of BIM as well in many situations. VDC is defined as the use of integrated multi-disciplinary performance models of design-construction projects to support explicit and public business objectives (Kunz & Fischer, 2012). This study is an attempt to answer the following questions: What are the differences between BIM and VDC and how BIM and VDC interact and affect each other. As a result, a timeline for both terms was created based on a historical analysis for the emergence of both terms. Furthermore, more differences between VDC and BIM were located through literature reviews and empirics and this mapping was used to find how each term affects the other.   The study was conducted in Tyréns Swedish consultancy company and it covered two infrastructure projects where VDC is used.

Estimating the construction time and cost of a building project is an essential task of construction manager, which benefits owners, engineers and contractors. Construction duration and cost, in particular, have profound influence on the outcome of a project at the conceptual stage of its life. The conventional methods used to estimate the time and costs of construction projects are based on 2D models, which need much time and effort from engineers, estimators and schedulers who are involved in preparing them because all of this process is done manually, especially when the project has several design alternatives. Considering that, Building Information Modelling (BIM), which is a technology that enhances data transfer and ensures cooperation among designers, engineers, and contractors, can provide an efficient way for cost estimating and schedule planning. On the other hand, sustainability has drawn more and more attention by the construction industry, this is because a project’s construction process has crucial impacts on society, the environment, and the economy. Modular Construction has been proven to ensure sustainable construction by reducing the negative impacts on the environment, reducing construction time, and improving manpower productivity. This research aims at developing an integrated model that interrelates BIM with construction cost estimation, scheduling, and sustainability at the conceptual design stage of projects. The aim is to reduce the preparation time and increase the efficiency of making major decisions for both conventional construction and modular construction. The proposed model consists of five modules, including a data collection module, a cost estimation module, a scheduling module, a sustainability evaluation module, and a 5D integrated module. Plug-ins were developed in the model to link BIM tool (i.e., Autodesk Revit) with Microsoft Excel to ensure automatic data transfer among these modules all within a BIM platform so that owners and designers can quickly generate a reliable construction cost estimate, construction schedule, preliminary sustainability evaluation, as well as construction process simulation.

This research developed a stage-based model for the management of building information modelling (BIM) implementation in construction organisations based on the theories of business process change management, innovation management, and IT implementation. The model identified five distinct stages: awareness, consideration, readiness assessment, deployment, evaluation and improvement plan and their related enablers, which are aligned with the organisational goals and objectives as a precursor to the successful and sustained implementation of BIM. Comparative case studies of five construction firms were used to test the applicability of the model within the broader spectrum of the construction supply chain in Australia.

A well-structured and coordinated information management practice is central to promoting efficiency in construction. Building information management encompasses authoring, interpretation, communication, coordination and storage of building information. The benefits envisioned by utilizing IT developments such as Building Information Modelling (BIM) in the facility management and operations (FM&O) sector are estimated to be far greater than in other sectors. There is, however, a gap between the knowledge available in the field of building information management and the actual demands of the architectural, engineering, construction and operation (AECO) industry, especially the FM&O sector. The overall aim of this qualitative research is to develop knowledge that conceptualizes the lifecycle supporting implementation of BIM in the AECO industry with a focus on its implications for a BIM-enabled FM&O practice. This applied research comprises a number of summative and formative components: paper 1 investigates the existing and emerging information management systems for the FM&O sector and their characteristics. The focus of paper 2 is narrowed down to the technical requirements on building information management systems; while its temporal scope spans the entire lifecycle of buildings. Paper 3 is a further elaboration on the findings of paper 1 and covers the technical requirements of BIM-implementation in the FM&O sector. Paper 4 investigates workflows – another category of the issues identified in paper 1. Paper 1 aims to provide a general understanding of the importance and implications of implementing BIM-enabled systems in the FM&O sector and also identifies the main categories of the issues associated with this approach. This literary paper reports on a basic research with a descriptive approach and builds upon the information from a non-exhaustive set of literature. In this paper, workflows, contracts and information technology have been identified as three categories of the issues associated with implementing BIM-enabled systems in the FM&O sector. Paper 2 is also a literary research which draws on the notion of BIM repositories and aims to clarify the technical requirements for a more collaborative building industry as well as depicting the current status of building knowledge management technologies, recent trends and future prospects. Open format BIM repositories have been suggested as the cornerstones of an integrated information management system for AECO firms. The aim of paper 3 is twofold: firstly, to summarize the current status of the building information management technologies applied in the facility operation activities and identifying prevailing issues; secondly, to devise some technical solutions for those issues based on a case project. In the first part of this study, a summarized description of information management configurations in eleven projects were extracted from literature and the technical issues within those systems were identified. Moreover, five major categories of contemporary technical solutions for enhancing information transfer from BIM to FM&O software were designated. Then, a narrative and illustrative representation and reconstruction of an IT-implementation project was developed. Paper 4 is another literary study which aims to provide the theoretical basis for more focused studies on existing and desired processes in the FM&O sector and their associated information transactions. In this paper, firstly, the more common definitions of the key concepts have been revisited and discussed. Then, the generic types of the processes, activities and organizational roles common to FM&O firms, the types of information required by each actor and how such information are acquired have been presented.

QC 20150423

This study integrates Building Information Modelling (BIM)and Geographic Information System (GIS) at data level using an open source approach for geometry transformation and an automatic attribute searching algorithm for semantics transfer for the purpose of facilitating data transformation from BIM to GIS. Based on that, an infrastructure management system has been developed using Web GIS technology in conjunction with the models created by BIM and transformed into GIS using the proposed approach.

In questa tesi si affronta il problema del Facility Management (FM) di un impianto natatorio e di come la strategia del Building Information Modeling ne possa migliorare l’efficienza tramite l’organizzazione degli aspetti informativi. La scelta della tesi è ricaduta sul Facility Management a seguito dell’esperienza di tirocinio e di esperienze lavorative dirette svolte nell’ambito di società che gestiscono impianti sportivi / natatori. Il confronto con le problematiche scaturite dall’ambito lavorativo hanno permesso di focalizzare come tema di sviluppo per il Facility Management l’introduzione della digitalizzazione BIM. Tramite una serie di incontri con interlocutori privilegiati sono stati individuati ed analizzati gli aspetti più importanti del FM di un impianto sportivo natatorio, ovvero della gestione, esercizio e manutenzione di una piscina sportiva, che possono essere oggetto di digitalizzazione. Dai risultati di quest’indagine sono stati individuati gli obbiettivi da sviluppare nella tesi. Gli obbiettivi posti a base della tesi sono di mostrare come, attraverso le informazioni fornite dal modello BIM, sia possibile avere: • accesso immediato a tutte le informazioni relative alla struttura e agli impianti. • il controllo dello stato di Manutenzione di ogni elemento strutturale e impiantistico. • il controllo sui consumi e poter preventivare scelte in base ad essi. • il controllo e calcolo dei costi di gestione. La tesi, che si avvale della collaborazione dell’Ing. Angelo Mingozzi, ha analizzato il caso di studio della piscina di Cà Selvatica, di Bologna. Il Modello BIM è stato digitalizzato con il software ALLPLAN.

Dissertação para obtenção do Grau de Mestre em Engenharia Civil – Perfil de Construção
Durante o ciclo de vida dos edifícios, muita atenção é dada aos custos de construção e projeto. BIM tem provado que os processos de construção podem ser mudados permitindo à indústria reduzir os custos e aumentar a sua produtividade. No custo global de um edifício a grande fatia dos custos não está associada à sua construção, mas antes à sua exploração e manutenção. O horizonte de projeto não é determinado em anos, mas antes em décadas. Durante esse período os edifícios degradar-se-ão naturalmente e apresentarão anomalias nos seus equipamentos e instalações. Desse modo, é ne-cessário levar a cabo procedimentos no dia-a-dia que garantam que o edifício cumprirá as exigên-cias funcionais inerentes ao seu propósito, e aumentar a sua vida útil. Num ambiente económico cada vez mais degradado a gestão e manutenção de edifício necessita de se orientar nesse sentido, eliminando desperdício nas suas operações, não só em intervenções de grande magnitude, como essencialmente na sua gestão diária. BIM apresentou uma forma de co-municar e colaborar, nunca antes pensada na indústria AEC; esse paradigma pode também ser apli-cado durante a exploração do edifício, permitindo igualmente ganhos de produtividade e eficiência na gestão da informação do edifício. Este trabalho propõe a integração de BIM nos processos de empresas de gestão de instalações, especialmente na partilha de informação entre os intervenientes. Para suportar a implementação de BIM, procede-se ao levantamento dos processos de gestão da manutenção de um caso de estudo usando o método Business Process Modelling and Notation (BPMN) avaliando as alterações que surgem empregando a metodologia Value Stream Mapping (VSM). Com a integração de BIM nos procedimentos da gestão da manutenção, resultaram ganhos de efi-ciência e produtividade assinaláveis. Permitiu a redução dos custos de operação, da variabilidade dos processos e ainda reduzir os erros humanos.

Following several years of research and development around the subject of BIM, its impact on the design and handover of buildings is now becoming visible across the construction industry. Changes in design procedures and information management methods indicate the potential for greater utilisation of a Common Data Environment in areas other than design. To identify how these changes are influencing the engineering design process, and adapt this process to the needs and requirements of building performance management requires consideration of multiple factors, relating mainly to the stakeholders and processes employed in these procedures. This thesis is the culmination of a four year Engineering Doctorate exploring how BIM could be used to support non-domestic building energy performance management. It begins with an introduction to the research aim and objectives, then presents a thorough review of the subject area and the methodologies employed for the research. Research is split between eight sequential tasks using literature review, interviews, data analysis and case-study application from which findings, conclusions and key recommendations are made. Findings demonstrate disparity between different information environments and provide insight into the necessary steps to enable connection between BIM and monitored building energy performance information. They highlight the following factors essential to providing an information environment suitable for BIM applied performance management: Skills in handling information and the interface between various environments; Technology capable of producing structured and accurate information, supporting efficient access for interconnection with other environments; and Processes that define the standards to which information is classified, stored and modified, with responsibility for its creation and modification made clear throughout the building life-cycle. A prototype method for the linking of BIM and monitored building energy performance data is demonstrated for a case-study building, encountering many of the technical barriers preventing replication on other projects. Methodological challenges are identified using review of existing building design and operation procedures. In conclusion the research found that BIM is still in its infancy, and while efforts are being made to apply it in novel ways to support efficient operation, several challenges remain. Opportunities for building energy performance improvement may be visualised using the modelling environment BIM provides, and the ability to interface with descriptive performance data suggests the future potential for BIM utilisation post-handover.

The expectations on digitalization and Building Information Modeling (BIM) in the Architectural, Engineering and Construction (AEC) are high. The high expectations are reflected in an increasing interest for the term business value of BIM. However, the practical and theoretical understanding of its content and perspective is characterized by rationalism and positivism commercially promoted by industry. This thesis aims to reflect on, problematize and extend the theoretical understanding of the content and perspective of the business value of BIM. Perceptions about business value of BIM, the associated challenges and costs and the role of the business of BIM in a wider socio-technical context are examined among Swedish and international AEC industry actors and a large Swedish public infrastructure client. To extend the understanding of the content and perspective of the business value of BIM, the rational and process-oriented theories on the business value of IT are combined with the more interpretive and hermeneutic socio-technical systems theory. A social and cognitive dimension is thus added to the understanding of the business value of BIM and business value of IT.  By combining the two research fields and contributing with the socio-technical perspective to the theoretical understanding of business value, this thesis contributes with theory development of the understanding of business value BIM and business value of IT.  For practitioners, the thesis shows the complex, multi-dimensional and challenging aspects of implementing BIM for business value. The journey of perspectives in this thesis from positivism towards increased interpretivism also sheds light on the implications of when different perspectives exert influence on a research field (hegemony) and wishes to provide a contrast and balance to the rational and positivistic perspectives in BIM research. It also wishes to inspire future BIM research to broaden the theoretical perspectives.
Förväntningarna på digitalisering och Byggnadsinformationsmodellering (BIM) i samhällsbyggnadssektorn är höga och reflekteras i ett ökande intresse för affärsnyttan av BIM. Den praktiska och teoretiska förståelsen av innehåll och perspektivet i affärsnyttan av BIM har karaktäriserats av rationalism och positivism som upprätthållits i kommersiella syften. Denna avhandling syftar till att reflektera över, problematisera och utöka förståelsen av innehållet och perspektivet av affärsnyttan av BIM. Den upplevda affärsnyttan av BIM, de associerade utmaningarna och kostnaderna och rollen av affärsnyttan av BIM i ett bredare sociotekniskt perspektiv undersöks bland aktörer i den svenska och internationella samhällsbyggnadssektorn samt hos en stor svenskt offentlig beställare av infrastruktur. För att problematisera över och utöka förståelsen av affärsnyttan av BIM kombinerar denna avhandlingen de rationella och process orienterade teorierna inom business value of IT med den mer hermeneutiska socio-technical systems teorin. Genom att kombinera dessa två fält bidrar avhandlingen med ett socialt och kognitivt perspektiv till den teoretiska förståelsen av affärsnytta. Det teoretiska bidraget består således av teoriutveckling. För praktiker belyser avhandlingen de komplexa, multi-dimensionella och utmananande aspekterna med att implementera BIM för affärsnytta. Resan i perspektiv från positivism och rationalism mot ökad interpretivism i avhandlingen belyser också implikationerna av hur olika perspektiv får inflytande över ett forskningsfält (hegemoni) och önskar bidra med en kontrast och balans till det rationella och positivistiska perspektivet i BIM forskning. Det är också förhoppningen att avhandlingens resa i perspektiv kan inspirera framtida forskning på BIM att vidga de teoretiska vyerna.

QC 20170920

Syftet med den här studien är att förbättra informationsflödet från projektering och produktion in i förvaltningen. Detta för att väcka ett intresse hos förvaltare och för att visa att det finns pengar att spara genom att ta hand om informationen från projekteringen och produktionen. Tidigare studier inom området BIM visar att stor fokus läggs på projektering och produktion men det är ett väldigt litet fokus på förvaltningen när man talar om BIM. Målet är att konkret kunna visa vad informationen är värd och att visa vilken information förvaltare använder och var den finns i byggprocessens skeden före förvaltningen. Rapporten bygger på en litteraturstudie, intervjuer och beräkningar. Förvaltare har blivit tillfrågade vilken information de använder i förvaltningen och sedan har projektör och entreprenör blivit tillfrågad ifall denna information finns att tillgå i projekteringen och produktionen. Värderingen av informationen har sedan gått till på två sätt. Det ena sättet är att bedöma kostnaden av att uppdatera information mot kostnaden att ta fram information på nytt. Det andra sättet är att med hjälp av nyckeltal (kronor per kvadratmeter) och den lista med typ av information som förvaltare använder, som sammanställts från intervjuerna, ta reda på vad information är värd. Det första sättet att värdera visar att det kostar lika mycket att hålla relationsritningar (A) uppdaterade i som minst 18år och i som mest 50år som att ta fram informationen helt på nytt. Nästan samma gäller för BIM-modell med avseende på relationsritningar (A). Fast där är kostnaden för framtagning på nytt lika stor som att hålla den uppdaterad i som minst 22år och i som mest 58år. Det andra sättet att värdera visar att mindre än 25% av den information man kan finna i projekteringen och eller i produktionen är värd cirka 10% av projekteringskostnaden.
The purpose of this study is to improve the flow of information from the design and construction phase into the facility management. This in order to make the facility managers see the advantages with BIM and to show that there is money to be saved by retrieving the information from the design and the construction phase. Earlier studies show that there actually has been quite little research done within BIM in the facility management and that the main focus has been at the design and the construction phase. The aim with the study is to specify the value of the information and to show which information facility managers use and where it can be retrieved from within the earlier phases of the construction process. The report is based on a literature study, interviews and calculations. A number of facility managers have been asked which types of information they use and designers and entrepreneurs have then been asked if these types of information can be found in the design and the construction phase. The information has been valued in two different ways. In one way the information was valued by comparing the cost between updating existing information or recreate the same type of information. The other way of valuing the information was to find out the worth of information by using key figures (SEK per square meter) and the list of information that facility managers use, which was made up from the interviews. The first way of valuing shows that the cost of producing as built drawings (A) in the facility management cost as much as keeping the same type of information updated for at least 18years and as most 50years. Almost the same goes for a BIM-model. Only there the difference is that the cost of producing a BIM-model focused on as built drawings (A) in the facility management cost as much as keeping the same type of information updated for at least 22years and as most 58years. The other way that the information was valued shows that less than 25% of the information that can be found in the design and/or construction phase is worth circa 10% of the projecting fee.

Sustainable performance of buildings has become a major concern among construction industry professionals. However, sustainability considerations are often treated as an add-on to building design, following ad hoc processes for their implementation. As a result, the most common problem to achieve a sustainable building outcome is the absence of the right information at the right time to make critical decisions. For design team members to appreciate the requirements of multidisciplinary collaboration, there is a need for transparency and a shared understanding of the process. The aim of this study is to investigate, model, and facilitate the early stages of Building Information Modelling (BIM) enabled Sustainable Building Design (SBD) by formalising the ad hoc working relationships of the best practices in order to standardise the optimal collaboration workflows. Thus, this research strives to improve BIM maturity level for SBD, assisting in the transition from ad hoc to defined , and then, to managed . For this purpose, this study has adopted an abductive research approach (iterative process of induction and deduction) for theory building and testing. Four (4) stages of data collection have been conducted, which have resulted in a total of 32 semi-structured interviews with industry experts from 17 organisations. Fourteen (14) best practice case studies have been identified, and 20 incidents narratives have been collected applying the Critical Decision Method (CMD) to examine roles and responsibilities, resources, information exchanges, interdependencies, timing and sequence of events, and critical decisions. As a result, the research has classified the critical components of SBD into a framework utilising content and thematic analyses. These have included the definition of roles and competencies that are essential for SBD along with the existing opportunities, challenges, and limitations. Then, Schedules of Services for SBD have been developed for the following stages of the RIBA Plan of Work 2013: stage 0 (Strategic Definition), stage 1 (Preparation and Brief), and stage 2 (Concept Design). The abovementioned SBD components have been coordinated explicitly into a systematic process, which follows Concurrent Engineering (CE) principles utilising Integrated DEFinition (IDEF) structured diagramming techniques (IDEF0 and IDEF3). The results have identified the key players roles and responsibilities, tasks (BIM Uses), BIM-based deliverables, and critical decision points for SBD. Furthermore, Green BIM Box (GBB) workflow management prototype tool has been developed to analyse communication and delivery of BIM-enabled SBD in a centralised system (Common Data Environment, CDE). GBB s system architecture for SBD process automation is demonstrated through Use Case Scenarios utilising the OMG UML (Object Management Group s Unified Modelling Language) notation. The proposed solution facilitates the implementation of BIM, Information Communication Technology (ICT), and Building Performance Analysis (BPA) software to realise the benefits of combining distributed teams expertise holistically into a common process. Finally, the research outcomes have been validated through academic and industrial reviews that have led to the refinement of the IDEF process model and framework. It has been found that collaborative patterns are repeatable for a variety of different non-domestic building types such as education, healthcare, and offices. Therefore, the research findings support the idea that a detailed process, which follows specified communication patterns, can assist in achieving sustainability targets efficiently in terms of time, cost, and effort.

The technology of Building Information Modelling (BIM) is being introduced to the Architectural, Engineering and Construction (AEC) industry. This industry is generally perceived as being fragmented, having low productivity and with a low rate of innovation. BIM is presented as new paradigm within this industry, enabling inter-organisational collaboration, overall increasing quality while simultaneously lowering costs. But widespread BIM implementation has not yet taken place. In order to increase adoption, public client organisations have been argued to be the actors needed to initiate and drive the implementation of BIM. However, the client perspective of such implementation initiatives has not been the main focus of earlier research. In this licentiate thesis the BIM implementation process conducted by the largest infrastructure client in Sweden is analysed. This organisation implements BIM both to benefit their own organisation but also to increase productivity and innovation within the whole infrastructure branch of the AEC-industry. With the purpose of increasing the understanding of technology driven change processes at public client organisations, the BIM implementation at this organisation is analysed as an empirical example.  The case study is analysed by a theoretical framework taking inspiration from Actor-Network theory and Sociology of Translation. Based on this analysis the translation process, where key actors are identified and enrolled into using BIM are described. The analysis reveals a complex network of actors linked to the implementation in question. Instead of a single BIM concept, several different and sometimes conflicting interpretations of BIM are simultaneously being translated. This licentiate thesis problematizes the role of client organisations in initiating change within a network of actors. The main ways of enrolling actors into using BIM have in the studied case been the development of new demand documents. This strategy has however been problematic as the new demands for BIM have not been accepted as intended within many construction projects. Instead, the results of this thesis argue for the importance of client organisations as negotiators, not only needed to establish demand for a new innovation.
Tekniken Byggands Informations Modellering (BIM) introduceras just nu i byggbranschen. Denna bransch beskrivs ofta som varande fragmenterad med låg produktivitet samt bristande innovationskraft. BIM beskrivs som ett nytt paradigm för denna bransch, möjliggörande interorganisatoriskt sammarbete, ökad kvalitet och samtidigt minskande kostnader. Däremot har BIM ännu inte anammats på bred front. För att öka implementeringstakten har statliga beställarorganisationer beskrivits som de aktörer som behövs för att initiera och driva implementeringen av BIM. Dock har tidigare forskning inte fokuserat på beställarperspektivet kring sådana initiativ. I denna licentiatavhandling presenteras en fallstudie av BIM implementeringen på den största infrastrukturbeställaren i Sverige. Denna organisation implementerar BIM både för att gynna den egna organisationen men också för att öka produktiviteten och innovationstakten i intrastrukturbranschen som helhet. Med syfte att öka förståelsen kring beställarrollen i förhållande till teknikdrivna förändringsprocesser studeras denna förändringsprocess som ett empiriskt exempel. Denna fallstudie analyseras utifrån ett teoretiskt ramverk med inspiration tagen från Actor-Network Theory och Sociology of Translation. Utifrån denna analys beskrivs översättningsprocesser där nyckelaktörer identifieras och försöks knytas till att använda BIM. Analysen visar på ett komplext nätverk av aktörer kopplat till implementeringen i fråga. Istället för ett enskilt BIM koncept hittas ett flertal samtidiga, och stundtals motsägelsefulla tolkningar av BIM som alla samtidigt översätts i organisationen. Denna licentiatavhandling problematiserar beställarrollen i relation till initiering av förändring inom ett aktörsnätverk. Det huvudsakliga sättet genom vilket aktörer knyts till att använda BIM har i det studerade fallet varit genom utveckling av nya kravdokument. Denna strategi har däremot varit problematisk då dessa krav inte accepterats som tänk inom ett flertal byggprojekt. Istället visar resultatet av denna studie på vikten av beställarorganisationer som varande förhandlare, inte endast viktiga för att upprätta efterfrågan för en ny innovation.

QC 20170614

Mestrado em Engenharia Civil
BIM – Building Information Modelling apresenta-se como a ferramenta do futuro no sector AEC, ao fomentar toda uma nova metodologia de trabalho envolvendo todas as fases do ciclo de vida de um edifício. Apoiado por uma capacidade gráfica sem precedentes no sector da construção e por uma base de dados que possibilita o armazenamento de informação desde as fases iniciais do projeto, o conceito BIM aparece cada vez mais ligado ao conceito de Facility Management devido às vantagens que este acarreta para a gestão de instalações. O presente trabalho desdobra-se numa tentativa de contribuir para a implementação do conceito de Facility Management (FM) em Portugal, associada ao Building Information Modelling. Sabendo-se que o mercado da construção de novos edifícios e infraestruturas tem vindo a abrandar nos últimos anos, o desafio de hoje envolve a gestão e manutenção de edifícios já existentes. Para o caso de estudo, foram escolhidos dois edifícios de abastecimento de água, tendo também em consideração o equipamento integrado nestes. Foi desenvolvido um modelo tridimensional de cada um dos edifícios, assim como dos equipamentos existentes, usando o Autodesk Revit 2016. De seguida, foram introduzidas todas as informações disponíveis para cada elemento no modelo, criando assim uma base de dados onde a informação é armazenada. Em seguida, utilizando a tecnologia Construction Operation Building information exchange, a base de dados foi exportada para ajudar os operadores das fases de gestão e manutenção. Por ultimo, foi criado um fluxo de trabalho através do software Dynamo, a fim de construir um método para atualizar as informações presentes no modelo através da alteração nas folhas de cálculo COBie. O modelo foi ainda integrado na plataforma A360, com o objetivo de criar um novo tipo de interface para facilitar a interação entre a equipa de operação.
BIM – Building Information Modelling presents itself as tool for the future in Architecture, Engineering and Construction (AEC) sector, stimulating a whole new work methodology involving all the stages in a buildings life cycle. Supported by an unprecedented graphics capabilities and a database that allows information storage from the early stages of the project, the BIM concept appears increasingly linked with the concept of Facility Management due the advantages that this entails for operating and maintaining of buildings. The present work intends to contribute to the implementation of the Facility Management (FM) concept in Portugal, associated with Building Information Modelling. Knowing that the construction market for new buildings and infrastructures has been slowing down in the last years, the challenge nowadays involves the management and maintenance of the existing buildings. For the case study, two water distribution buildings were selected and studied, including the equipment integrated on them. A three-dimensional model was developed using Autodesk Revit 2016, in which were introduced all the information available for each element in the model, creating a database where the information is stored. Then, using Construction Operation Building information exchange, the database was exported helping out those who work in the operation and maintenance phase. Finally, it was created a workflow through Dynamo software in order to build a method to update the information in the model through the modification in the COBie spreadsheets. The model was integrated in A360 platform, aiming to create a new kind of interface that facilitate the interaction between the operation staff.

Syftet med denna studie har varit att undersöka hur ett företag tillämpar BIM vid projektering. Detta för att analysera hur företaget har implementerat BIM samt att identifiera fördelar, utmaningar och möjligheter med BIM. För att förse denna studie med kunskap har en fallstudie utförts hos en ingenjörsbyrå. Resultatet av studien visar att företaget arbetar med 3D-modellering samt att implementeringen av BIM i organisationen huvudsakligen har genomförts med fortlöpande utbildning och arbete inom BIM. Studien har identifierat möjligheter och utmaningar som uppkommer när företaget arbetar med BIM. Studiens slutsatser uppmärksammar att det råder brist på kunskap och medvetenhet inom BIM både inom organisationen och inom byggbranschen för att tillgodose se möjligheter som BIM-projektering medför. Studien praktiska implikationer rekommenderar företaget att utveckla en målsättning, införa en grundläggande kunskapsnivå samt att utveckla BIM leveransen.

Em decorrência de sua atuação expressiva no mercado de financiamento de empreendimentos de habitação e infraestrutura, a Caixa Econômica Federal (Caixa) é um banco de grande relevância para o setor da construção civil brasileira. A Caixa mantém um setor técnico no qual são desempenhadas, dentre demais responsabilidades, as atividades de análise de documentação técnica e verificação da execução orçamentária e financeira das obras. Atualmente, esses procedimentos são realizados essencialmente de forma manual, configurando um processo moroso e suscetível à ocorrência de imprecisões. Nesse sentido, o presente trabalho tem como objetivo analisar a introdução da Modelagem da Informação da Construção, notadamente, no processo de verificação da documentação técnica de obras, realizado pelos profissionais desse banco público. Primeiramente, realizou-se um diagnóstico, por meio de uma survey, no setor técnico da Caixa que apontou aspectos relevantes à gestão de mudanças de origem tecnológica nesse ambiente. Em continuidade ao estudo de caso, investigou-se as motivações, os benefícios almejados e as possíveis barreiras para a implantação dessa inovação no processo de análise técnica desenvolvido pela instituição. Para verificar a adequabilidade e a aceitação das propostas preliminares de ferramentas e diretrizes de modelagem foi conduzido um workshop no qual participaram profissionais voluntários do mercado da construção civil. Com base neste estudo, apresentado neste trabalho na forma de três artigos científicos publicados, verificou-se que a Caixa pode ser considerada um importante vetor de difusão de práticas associadas à Modelagem da Informação da Construção na indústria da construção civil brasileira e que a proposição de novas ferramentas e diretrizes poderia ser efetivamente adequada para incrementar a prática projetual. Além disso, observou-se que a transformação interna necessária para a implementação de mudanças nos processos técnicos da Caixa é viável desde que seja propiciado um ambiente favorável, em que os gestores incentivem, planejem e deem suporte às possíveis mudanças. Finalmente, a contribuição pretendida com esta pesquisa é fomentar outras iniciativas e colaborar para a disseminação da Modelagem da Informação da Construção nos setores de projeto e construção civil brasileiros.
Due to its outstanding performance in housing and infrastructure construction financing market, Caixa Econômica Federal (Caixa) is a bank of great importance in the Brazilian Construction and Design industry. Caixa maintains a technical department that, among other activities, perform technical feasibility analyses, and verify the budgetary and financial development of construction projects. Currently, the project analysis process is manual, time-consuming and error-prone. In this sense, the present study aims to analyse the introduction of Building Information Modelling in the technical feasibility analyses process, carried out by engineers and architects. Firstly, a survey was conducted to perform an intraorganizational assessment of Caixa\'s technical department, in order to identify aspects relevant to change management. Secondly, in this study case, the motivations, the desired benefits and potential barriers to the implementation of this innovation were investigated. In addition, a workshop was conducted with construction and design professionals to verify the suitability and acceptance of the preliminary proposals of tools and modelling guidelines. Based on this study presented in three published scientific papers, Caixa can be considered an important diffusion vector of Building Information Modelling practices in the Brazilian construction and design industry. In addition, the proposition of new tools and modelling guidelines could effectively be appropriate to enhance its design practices. Furthermore, the intraorganizational change required for implementing innovations in the Caixa technical department proved to be feasible if provided with a favourable environment in which managers stimulate, plan and support possible changes. Finally, the intended contribution of this research is to encourage other initiatives and contribute to spreading additional practices related to Building Information Modelling in the Brazilian construction and design industry.

Logistics and supply chain in the Architecture, Engineering and Construction (AEC) industry can be seen as coordinated collaboration that is subject to managerial risks. The managerial risks are mitigated by Building Information Modelling (BIM) and Geo-Information Science (GIS), which are two distinctive digital transformative tools which are revolutionizing and accelerating the AEC industry in recent years. Many gains have been achieved concerning the capacity of BIM and GIS to enable collaborative workflows that minimize data loss and reduce inefficiencies in construction. In the past decade, most scholarly literature on BIM and GIS integration for supply chain management have focused on coordination and visualization to improve supply chain operational efficiency. While BIM optimizes visualization and manages the data related to specific projects, GIS coordinates and manages the data related to the outside environment of the project. An integrated BIM-GIS adoption for Construction Supply Chain Management (CSCM) offers value propositions for client and contracting organizations as information/data is seamlessly shared among them to guide decision making at every phase of the construction project.  However, no detailed study has been conducted so far on assessments of the value creation 4D BIM-GIS brings to the AEC industry when espoused for CSCM. To fill this gap, this paper aims to identify and prioritize the value propositions to 4D BIM-GIS adoption for CSCM in the Swedish AEC industry. Based on the reflective perceptions and evaluations of the AEC industry, the paper demonstrated the varied opinions from current active users and those who are yet to adopt 4D BIM-GIS for CSCM. ‘Time savings, ‘Increased efficiency and productivity and ‘Improved communication and information sharing’ were ranked as topmost drivers for 4D BIM-GIS adoption. The paper recommends corporate level training as pivotal in familiarizing workers with the new techniques that combine BIM and GIS in AEC practice.
Logistik och försörjningskedjan inom arkitektur, teknik och konstruktion (ABE) kan ses som ett samordnat samarbete med överhängande ledningsrisker. Riskerna som hanteras kan mildras av Byggnadsinformationsmodellering (BIM) och Geografiskt informationssystem (GIS), som är två digitalt distinkta transformativa verktyg som revolutionerat och påskyndat ABE-sektorn de senaste åren. Många vinster har uppnåtts med avseende på kapaciteten av BIM och GIS, vilket har möjliggjort ett samarbetsflöde som minimerat dataförlust och minskat ineffektiviteten i byggandet. Under det senaste decenniet har den mest vetenskapliga litteraturen om BIM- och GIS-integration för ledning av försörjningskedjan fokuserat på samordning och visualisering för att förbättra effektiviteten i försörjningskedjan. BIM optimerar visualisering och hantering av data, relaterat till specifika projekt, medan GIS samordnar och hanterar data relaterat till projektets omgivning. En integrerad BIM-GIS-antagande för konstruktionsledningen av försörjningskedjan (CSCM) erbjuder värdeförslag för klient- och beställarorganisationer, eftersom information / data sömlöst delas mellan dem för att kunna guida beslutsfattandet i varje fas av byggprojektet. Emellertid har ingen detaljerad studie hittills genomförts om bedömningar av värdeskapandet som 4D BIM-GIS ger till ABE-sektorn när de används för CSCM. För att fylla denna kunskapslucka syftar denna studie till att identifiera och prioritera värdeförslag till 4D BIM-GIS-antagande för CSCM i den svenska ABE-sektorn. Baserat på de reflekterande uppfattningarna och utvärderingarna från ABE-sektorn, visar studien de olika åsikterna från de nuvarande aktiva användare och de som ännu inte har antagit 4D BIM-GIS för CSCM. ”Tidsbesparingar,” Ökad effektivitet och produktivitet” och ”Förbättrad kommunikation och informationsdelning” rankades som de främsta drivkrafterna för 4D BIM-GIS-antagande. Studien rekommenderar utbildning på företagsnivå som en central faktor för att bekanta sig med de nya teknikerna som kombinerar BIM och GIS i ABE-sektorn.

Nos últimos anos, a discussão sobre a implementação do conceito de modelagem da informação da construção tem permanecido nas pautas das empresas do setor da construção civil em todo o mundo; no entanto, no cenário brasileiro, o descompasso entre a estratégia setorial e as iniciativas individuais de algumas empresas tem chamado a atenção. Partindo do princípio de que o conceito de modelagem da informação da construção, em função do seu caráter de inovação tecnológica, carrega consigo a necessidade de mudanças, a reflexão e adaptações sobre os diversos processos que permeiam a produção dos empreendimentos de construção torna-se fundamental. Nesse contexto, o objetivo desta tese é propor um conjunto de Diretrizes para Gestão do Processo de Projeto em Empresas Incorporadoras e Construtoras. As Diretrizes estão pautadas na necessidade de definir o projeto como um processo estratégico, inserindo a sua gestão como elemento fundamental para a facilitação e integração do fluxo de informações no âmbito do empreendimento. Para a concretização do objetivo da tese, realizaram-se Estudos de Caso em empresas Incorporadoras e Construtoras brasileiras com o objetivo de diagnosticar as práticas vigentes de gestão do processo de projeto. Em paralelo, conduziu-se a reflexão sobre as responsabilidades do gestor do processo de projeto no âmbito da modelagem por meio de Grupos de Foco envolvendo gestores do processo de projeto e especialistas em tecnologia da informação aplicada à construção. Além disso, a metodologia de pesquisa contempla um Estudo de Caso com foco para a implementação do Conceito de Modelagem da Informação no contexto setorial do Reino Unido. Como resultado das Diretrizes, apresenta-se o Modelo para Gestão do Processo de Projeto no Contexto da Modelagem, seguido pelo Plano de Reestruração para o Departamento de Projetos, o qual visa à proposição de um modelo estruturado para condução das mudanças necessárias nas áreas responsáveis pelo processo de projeto das empresas Incorporadoras e Construtoras.
The discussion about BIM (Building information Modelling) implementation has remained on the agendas of construction companies worldwide in recent years; however, in the Brazilian context, the gap between the industry strategy and few companies which have decided to implement BIM autonomously has been the main aspect that draw attention. Assuming BIM as a technological innovation, which carries with it changes, it is fundamental to analyse and adapt the design and construction processes. In this context, the thesis aims propose a set of Guidelines to Manage the Design Process of Brazilian Real Estate Development Companies. The Guidelines has taken the Design Management as a strategic process which must facilitate and integrate information flow among the Construction Project agents. In order to achieve the objective of Thesis, Case Studies have carried out in order to diagnose the design management current practices in the Brazilian Real Estate Development Companies. Aiming to discuss the Design managers\' responsibilities in contexts where BIM is applied, Focus Groups were organized and Design Managers, BIM specialists and also Academics have participated in the discussions sections. In addition, the research methodology have included a Case Study focusing on the BIM implementation in United Kingdom construction industry. As results and Guidelines, the Design Management Modeling in BIM context, followed by the Restructuring Planning are proposed. The Restructuring Planning was defined specifically for Real Estate Development Companies and aims to propose structured way, comprehending processes which should be re-designed and a set of steps for driving the necessary changes in order to use Design Management Guide in BIM context are proposed.

Detta examensarbete har undersökt vilka möjligheter som skapas genom att använda Building Information Modelling (BIM) för Livscykelkostnadsanalyser (LCCA). Arbetet beskriver först LCCA och sedan hur BIM samt öppna standardiserade dataformat kan användas för LCCA och för kvalitetssäkring av data. Till sist visas hur ett verktyg som räknar ut LCC direkt från en byggnadsmodell kan utformas. Genom att kunna synliggöra konsekvenserna av olika lösningsalternativ och göra kvalitativa LCCA erhålls genomtänkta lösningar och medvetenhet om de framtida förvaltningskostnaderna. För en byggherre som också ansvarar för driften kan dessa alternativsvärderingar och analyser leda till betydligt lägre förvaltningskostnader. För Norska Statsbygg som idag förvaltar 2.6 miljoner kvadratmeter fördelat på 2300 byggnader innebär lägre förvaltningskostnader inte bara besparingar för dem utan även för hela det Norska samhället. Därför är LCCA ett viktigt beslutsunderlag för Statsbygg. För LCCA behövs verktyg som ger adekvata resultat och för detta ändamål är de senaste årens utveckling inom BIM intressant. Syftet med detta arbete var att först beskriva och analysera möjligheten att använda BIM för LCCA och sedan att visa hur ett LCC-verktyg kan utformas. Arbetet grundade sig enbart i kvalitativa arbetsmetoder genom intervjuer och direktmedverkan. I undersökningen har jag valt att intervjua anställda på Statsbygg för att få veta mer om LCC. De har varit drivande i utveckling av metoder och den norska standarden NS3454 sedan 1982, de är också en av Norges största byggherrar som även förvaltar sina byggnader och LCCA får därför stor betydelse. Jag har också valt att fokusera på renhållning som är en av posterna i den norska standarden NS3454 för LCCA. Renhållning valdes eftersom det är den största kostnaden under förvaltningsfasen. Kunskaper om BIM erhölls genom direktmedverkan hos Jotne EPM-Technology i Oslo som har arbetat med öppna standardiserade dataformat och BIM sedan 1985. Som en del av deras utvecklingsmiljö arbetades det fram ett verktyg för beräkning av framtida renhållningskostnader. Slutsatsen i arbetet är att genom användning av BIM för LCCA kan det erhållas bättre kvalitet i den slutliga produkten genom fler möjligheter för optioneering och kvalitetskontroller. Dessutom kan det ge mer adekvata LCCA genom Master Data Management och möjligheten att planera mer i detalj. För att dessa fördelar ska kunna bli verklighet behöver det utvecklas fler verktyg för både förvaltning och LCCA. Det behöver också utvecklas fler kunskapsdatabaser för LCC, underhåll, energi samt rengöring. All utveckling bör dessutom basera sig på öppna standardiserade dataformat.
This thesis has investigated the possibilities of using Building Information Modelling (BIM) for Life Cycle Cost Analys (LCCA). It describes LCC and how BIM can be used for LCC and for data quality control. It also shows how a tool that calculates the LCC directly from a building model can be designed. Being able to highlight the consequences of various design solutions and make qualitative LCCA, results in better solutions and awareness off the future facility management(FM) -costs. For a builder who also is responsible for the operational phase these analysis can lead to significantly lover costs. Statsbygg currently manages 2.6 million square meter spread over 2300 buildings. Lower FM-costs implies savings not only for the company itself, but for the Norwegian society as well. Therefore LCCA is an important decision basis for Statsbygg. LCCA requires tools that provide adequate results, and for this purpose the recent developments in BIM are interesting. BIM enables operational procedures and analysis that previously not was possible and it has potential to be used within the LCCA. The purpose of this work was first to describle and analyze the possibility of using BIM to make LCCA and then to show how a solution for calculating can be designed. The work was based only in qualitative methods through interviews and being a part of developers enviroment. It was chosen to interview employees at Statsbygg to know more about LCC. They have worked with development and methods since 1982 and have extensive expertise in the field. They are one of Norway’s largest property developers, wich also manages its buildings and therefore LCCA is important. It was also chosen to focus on cleaningcosts wich is one of the costs in the Norwegian standard NS 3454 for LCCA. Cleaning was chosen because it is a major cost in the FM-phase. Knowledge of BIM was obtained beeing part of the development enviroment at Jotne EPM-Technology in Oslo who has worked with open standard data formats and BIM since 1985. As part of their enviroment the works with the cleaningcost-tool proceed. The conclusion of this work is that use of BIM for LCCA can obtain better quality of the final product by more opportunities for optioneering and quality controls. Moreover, it may provide more accurate LCCA through master data management systems and the ability to plan in more detail. To realize all benefits it is necessary to develop more tools for FM and LCCA based on open standard data formats. Furthermore, it is necessary to develop knowledge databases for LCC, maintenance, energy and cleaning based on open standard data formats.

Purposefully-designed buildings are complex by nature, because they are host to a variety of human activities that require them to perform adequately and be well suited to their intended functions. Building ‘performance’ has been an area of major research interest, so that efficient buildings are constructed that operate effectively to support the functional purposes for which they are being used. It is a complex concept that has been difficult to measure and incorporate into building design. Many methods and approaches have been developed to assess ‘performance’ for the purpose of addressing the gap between predicted – and actual – performance. However, it is acknowledged that these methods/approaches lack accuracy, are time consuming and do not provide a holistic view of the complex procedures and processes involved during the design and physical construction of the building. Building Information Modelling (BIM) provides a new way of integrating information technology within the construction industry. Its capability as a digital platform has supported managing, sharing and exchanging interdisciplinary information between multi-disciplinary stakeholders. BIM has supported some aspects of assessing building ‘performance’ by emphasising energy consumption, sustainable design and building behaviour. BIM technology excels in situations that have quantitative-based aspects, which often are derived from those involved in the building delivery process. However, the design of successful buildings-in-use, through concepts like building performance, requires incorporating information from multiple perspectives, which requires going beyond the consideration of the characteristics that are quantitative. This investigation aimed to explore how BIM can enhance the delivery of better construction performance for buildings. A case-study research method was used in this research where data was gathered using semi-structured interviews, documentary analysis, and feedback reports from the building delivery team, facility management team and building occupants. The research journey was developed through three case studies where one case study influenced the direction of the next case study. Initial findings showed that ‘space’ as one of the building aspects was used as a reference concept for building performance because it provided a way for situating different meanings of building performance by different stakeholders. Thematic analysis was used to analyse the findings for each case study. The key finding from the case studies showed that there is a gap between data and experience. ‘Systems thinking’ analysis was used to investigate this gap, as it concerns the complexity, the handling of information modelling and supports addressing ‘softer’ human aspects. It showed that the reason for the gap between data and experience is that different stakeholders see the parts and the whole differently. Soft systems analysis was then used to explore this gap, as it provides a holistic approach to the situation being investigated. The use of this approach allowed the opportunity to understand the problems and possible conflicts within a particular situation. Wilson’s approach of ‘soft systems’ was also used, as it goes beyond conceptual models to information categories, which can support bridging the gap between data and experience. An overview of the problem, emphasising its complexity through proposed themes is presented. The delivery of building performance requires richer representation that acknowledges the significance of different parts in a construction project and how they influence stakeholders. Using the information requirements identified through soft systems analysis, a ‘space strategy model’ was proposed, which suggests that space designs in BIM should, in Zuboff’s concept, be informated in order to identify the significance of different parts of a the build and build design, and support richer cognition of emergent characteristics that influence different experiences within a building project.

Building design can have a major impact on sustainability through material efficiency and construction waste minimisation (CWM). The construction industry consumes over 420 million tonnes of material resources every year and generates 120 million tonnes of waste containing approximately 13 million tonnes of unused materials. The current and on-going field of CWM research is focused on separate project stages with an overwhelming endeavour to manage on-site waste. Although design stages are vital to achieve progress towards CWM, currently, there are insufficient tools for CWM. In recent years, Building Information Modelling (BIM) has been adopted to improve sustainable building design, such as energy efficiency and carbon reduction. Very little has been achieved in this field of research to evaluate the use of BIM to aid CWM during design. However, recent literature emphasises a need to carry out further research in this context. This research aims to investigate the use of BIM as a platform to help with CWM during design stages by developing and validating a BIM-aided CWM (BaW) Framework. A mixed research method, known as triangulation, was adopted as the research design method. Research data was collected through a set of data collection methods, i.e. selfadministered postal questionnaire (N=100 distributed, n=50 completed), and semistructured follow-up interviews (n=11) with architects from the top 100 UK architectural companies. Descriptive statistics and constant comparative methods were used for data analysis. The BaW Framework was developed based on the findings of literature review, questionnaire survey and interviews. The BaW Framework validation process included a validation questionnaire (N=6) and validation interviews (N=6) with architects. Key research findings revealed that: BIM has the potential to aid CWM during design; Concept and Design Development stages have major potential in helping waste reduction through BIM; BIM-enhanced practices (i.e. clash detection, detailing, visualisation and simulation, and improved communication and collaboration) have impacts on waste reduction; BIM has the most potential to address waste causes (e.g. ineffective coordination and communication, and design changes); and the BaW Framework has the potential to enable improvements towards waste minimisation throughout all design stages. Participating architects recommended that the adoption of the BaW Framework could enrich both CWM and BIM practices, and most importantly, would enhance waste reduction performance in design. The content should be suitable for project stakeholders, architects in particular, when dealing with construction waste and BIM during design.

Abstract The current practice for information sharing with building information modelling (BIM) is distributed data sharing based on conversions. Conversions are problematic due to data loss, redundancy, and conflicting information. The hypotheses of this research were that i) a conversion-free data exchange is a feasible approach for BIM, ii) benefits can be achieved with a conversion-free information sharing, and iii) no impediment in principle exists for wider industrial use. The use of a single data schema by all applications is a requisite for a conversion-free data collaboration. For enabling the free evolution of the data content, a version free data schema is necessary. A model arrangement implementing partial models is needed for the growing size of models. A single shared model approach eliminates data conflicts and duplicates. For the best availability, the location for the shared model should be on a cloud service. Accessing the cloud model only through a web service, which encapsulates all model handling functionality, will ensure data integration and validity. The validity of IT solutions can only be confirmed with real software. For testing the conversion-free BIM method, a software development kit (SDK) with required functionality was programmed. Three applications and a cloud service for handling the shared model were developed with the help of SDK. In the experiments, Leonardo application was used for modelling walls, 3DTrussme for trusses, and Viewer for viewing the model. All applications were using the same shared model on the cloud. In the experimental test, the information exchange occurred without conversions, and all the data were saved only once on the cloud database. Without conversions, less conflicts and redundancies occurred, which lead to better data integrity and integration. Using SDK, there was no technical barrier for applications to join the single shared model ecosystem, but a drawback was that existing BIM programs are not compatible without remarkable changes. The performance was acceptable in the test run, but in real use, the size of the model and the number of applications and users will be much larger. However, a conversion-free single shared model approach can be a possible trend to the next generation BIM as well as a potential alternative for current data sharing methods using distributed files, conversions, and linked data
Tiivistelmä Rakentamisen tietomallinnuksen (BIM) nykyisenä tiedonjakamisen käytäntönä on hajautettu tietojärjestelmä, joka perustuu konversioihin. Konversiot ovat ongelmallisia tiedon häviämisen, ristiriitojen ja päällekkäisyyksien vuoksi. Tämän tutkimuksen hypoteesit olivat: i) konversiovapaa tiedonjakaminen on mahdollista, ii) etuja on saavutettavissa ilman konversioita tapahtuvassa tiedonsiirrossa ja iii) laajemmalle teolliselle käytölle ei ole periaatteellisia esteitä. Konversiovapaa tiedon jakaminen edellyttää yhden dataformaatin käyttöä. Alati kasvavien tietomallien koko vaatii tiedon järjestämismenetelmän, joko mahdollistaa osamallit. Datan ristiriidat ja päällekkäisyydet voidaan estää yhden jaetun mallin menetelmällä. Informaatio on parhaiten kaikkien osapuolien saatavilla, kun jaettu malli sijoitetaan pilvipalveluun. Kun tietomallia käsitellään vain web-palvelun rajapintafunktioilla, tiedon eheys ja kelpoisuus säilyvät. Tietoteknisten ratkaisujen kelpoisuus voidaan viime kädessä osoittaa vain toimivilla ohjelmistoilla. Konversiovapaan menetelmän testausta varten kehitettiin vaadittavat ominaisuudet sisältävä ohjelmistokehityspaketti (SDK), joka on edellytys sovellusten yhteensopivuudelle. Kolme sovellusta eli 3DTrussme, Leonardo ja Viewer ohjelmoitiin SDK:n avulla. Ohjelmointirajapinta sisälsi tarvittavat toiminnallisuudet tiedonjakamiseen, ja se toteutettiin pilvipalveluna. Testiajossa Leonardo-sovelluksella mallinnettiin seinät, 3DTrussmellä suunniteltiin naulalevyristikot ja Viewer-sovelluksella tarkasteltiin mallia. Kaikki kolme sovellusta käyttivät samaa jaettua mallia pilvipalvelussa. Suoritetussa testissä kaikki informaatio jaettiin ilman konversioita ja tallennettiin vain kerran. Ilman konversioita ja päällekkäisyyksiä saavutettiin parempi datan eheys ja integraatio. SDK:n avulla uudet sovellukset pystyivät liittymään yhden jaetun mallin ekosysteemiin ilman teknisiä esteitä. Toisaalta, ilman merkittäviä muutoksia nykyiset BIM sovellukset eivät ole yhteensopivia. Testiajossa suorituskyky oli hyväksyttävä, mutta todellisuudessa mallien koko sekä sovellusten ja käyttäjien lukumäärä ovat paljon suurempia. Tutkimus osoitti, että konversiovapaa yhden jaetun mallin menetelmä voi olla seuraava BIM-kehityssuunta ja vaihtoehto nykyisille tiedonsiirtoratkaisuille, jotka käyttävät erillisiä tiedostoja, konversioita ja linkkejä

[ES] Los proyectos de arquitectura patrimonial conllevan trabajo colaborativo entre diferentes agentes tales como arquitectos, ingenieros, arqueólogos, historiadores, restauradores, propietarios, etc. Tradicionalmente cada disciplina ha trabajado de manera independiente generando información dispersa. El flujo de trabajo en los proyectos patrimoniales presenta problemas relacionados con la desorganización de procesos, la dispersión de información y el uso de herramientas obsoletas. Diferentes organizaciones abogan por usar métodos innovadores para tratar de resolver estos problemas. BIM (Building Information Modelling) se ha postulado como una metodología adecuada para mejorar la gestión del patrimonio arquitectónico. La aplicación de BIM a construcciones históricas, denominada HBIM (Heritage BIM), ha probado tener múltiples ventajas para gestionar proyectos patrimoniales. Sin embargo, la literatura científica pone de manifiesto la necesidad de seguir investigando en los procesos de los proyectos patrimoniales, la implementación práctica de HBIM, la simplificación de la laboriosa tarea de modelado HBIM y la documentación de los proyectos HBIM. La finalidad de esta investigación es el desarrollo de un protocolo que ordene la gestión de proyectos patrimoniales usando HBIM y el diseño de una plataforma web que sincronice la información patrimonial. DSR (Design Science Research) es el método de investigación usado para desarrollar dicho protocolo que ayude a mejorar el flujo de trabajo en los proyectos patrimoniales. Las técnicas de investigación usadas han sido el análisis documental, casos de estudio, entrevistas semiestructuradas y grupos focales. Se analizaron los procesos HBIM y se estudiaron los requerimientos de los agentes patrimoniales. Como resultado, se desarrolló el protocolo BIMlegacy, dividido en ocho pasos y contemplando a todos los agentes que participan en proyectos patrimoniales. Dicho protocolo se aplicó en el caso de estudio de Fixby Hall, en Huddersfield (Reino Unido), y sus resultados fueron expuestos en un workshop interdisciplinar para validar y mejorar el protocolo BIMlegacy. Basado en este protocolo, se desarrolló la plataforma BIMlegacy como herramienta para poder llevar a cabo este flujo de trabajo donde agentes interdisciplinares pueden unificar y sincronizar la información patrimonial. Este innovador sistema en la nube conecta la base de datos intrínseca de los programas HBIM con bases de datos patrimoniales usando un plug in para Revit de Autodesk, una web API, un servidor SQL y un portal web. La plataforma BIMlegacy se diseñó como una web de trabajo, pero también como una web de difusión cultural donde el público generalista puede acceder a cierta información de los monumentos. El protocolo y la plataforma BIMlegacy fueron usados para gestionar el proyecto de Registro de San Juan del Hospital. El protocolo, la plataforma y los resultados del proyecto de San Juan del Hospital fueron expuestos en un grupo focal en Valencia con profesionales para su evaluación científica. La contribución teórica de esta investigación ha sido el descubrimiento de problemas en el modelado HBIM que no habían sido especificados antes, beneficios del HBIM (por ejemplo, el uso de plataformas online o el filtrado de información en sistemas HBIM) y requerimientos para implementar HBIM en la práctica tales como la necesidad de un protocolo simple e intuitivo y de ofrecer entrenamiento específico a los agentes no técnicos. Las contribuciones prácticas al conocimiento han sido la creación del protocolo BIMlegacy con la lista de agentes patrimoniales y la integración de procesos tradicionales, el diseño de la plataforma BIMlegacy con la sincronización de la información en tiempo real que permite que los agentes no técnicos puedan participar activamente en los modelos HBIM, el uso de HBIM como una herramienta de gestión, y la aportación de información rigurosa volcada por profe
[CAT] Els projectes d`arquitectura patrimonial comporten treballs col·laboratius entre diferents agents tals com arquitectes , enginyers ,arqueòlegs , historiadors, restauradors , propietaris , etc. Tradicionalment cada disciplina ha treballat de manera independent generant informació dispersa. El flux de treball en els projectes patrimonials presenta problemes relacionats amb la desorganització de processos, la dispersió d'informació i l'ús d'eines obsoletes. Diferents organitzacions promouen fer servir mètodes innovadors per a tractar de resoldre aquests problemes i fer del patrimoni cultural un motor de desenvolupament socioeconòmic. BIM (Building Information Modelling) s'ha postulat com una metodologia adequada per millorar la gestió del patrimoni arquitectònic. L'aplicació de BIM a construccions històriques, anomenada HBIM (Heritage BIM), ha demostrat tenir múltiples avantatges per gestionar projectes patrimonials. No obstant això, la literatura científica posa de manifest la necessitat de seguir investigant en els processos dels projectes patrimonials, la implementació pràctica de HBIM, la simplificació de la laboriosa tasca de modelatge HBIM i la documentació dels projectes HBIM. L'objectiu d'aquesta investigació és el desenvolupament d'un protocol que ordeni la gestió de projectes patrimonials usant HBIM i el disseny d'una plataforma web que sincronitzi la informació patrimonial. DSR (Design Science Research) és el mètode d'investigació utilitzat per desenvolupar aquest protocol que ajudi a millorar el flux de treball en els projectes patrimonials. Les tècniques d'investigació utilitzades han estat l'anàlisi documental, entrevistes semi-estructurades i grups focals. També es van analitzar els processos HBIM i es van estudiar els requeriments dels agents patrimonials. HBIM es va proposar com el model virtual que acull la informació patrimonial i que articula els processos. Com a resultat, es va desenvolupar el protocol BIMlegacy, dividit en vuit fases, contemplant a tots els agents que participen en projectes patrimonials. Aquest protocol es va aplicar en el cas d'estudi real de Fixby Hall, a Huddersfield (Regne Unit), i els seus resultats van ser exposats en un workshop interdisciplinari per validar i millorar el protocol. Basat en aquest protocol, el grup de recerca va desenvolupar la plataforma BIMlegacy com a eina per poder dur a terme aquest flux de treball on agents interdisciplinaris poden unificar i sincronitzar la informació patrimonial. Aquest innovador sistema en el núvol connecta la base de dades intrínseca dels programes HBIM amb les bases de dades patrimonials fent servir un plug-in per Revit d'Autodesk, un web API, un servidor SQL i un portal web. La plataforma BIMlegacy es va dissenyar com un web de treball, però també com un web de difusió cultural on el públic generalista pot accedir a certa informació dels monuments. El protocol i la plataforma BIMlegacy van ser utilitzats per gestionar el projecte de Registre de Sant Joan de l'Hospital. El protocol i la plataforma i els resultats del projecte de Sant Joan van ser exposats en un grup focal amb professionals per a la seva avaluació científica a València. La contribució teòrica d'aquesta investigació ha estat el descobriment de problemes en el modelatge HBIM que mai havien estat especificats abans, beneficis del HBIM (per exemple l'ús de plataformes en línia, el filtrat d'informació en sistemes HBIM, la integració de la divulgació cultural amb HBIM) i requeriments per implementar HBIM en la pràctica, com ara la necessitat d'un protocol intuïtiu i simple on oferir entrenament específic als agents no tècnics. Les contribucions pràctiques al coneixement han estat la creació del protocol BIMlegacy amb els agents patrimonials i la integració de processos tradicionals,el disseny de la plataforma BIMlegacy amb la sincronització de la informació a temps real que permet que els agents que no son tècnics pugu
[EN] Heritage architectural projects involve collaborative work between different stakeholders, e.g. architects, engineers, archaeologists, historians, restorers, managers, etc. Traditionally, each discipline works independently, generating dispersed data. The workflow in historic architecture projects presents problems related to the lack of clarity of processes, dispersion of information, and the use of outdated tools. Different heritage organisations have showed interest in innovative methods to resolve those problems. Building Information Modelling (BIM) has emerged as a suitable computerised system to improve the management of heritage projects. BIM application to historic buildings, named Heritage Building Information Modelling (HBIM), has shown benefits in managing heritage projects. The HBIM literature highlights the need for further research in terms of the overall processes of heritage projects, its practical implementation, the need of simplifying the laborious modelling task, and need for better standards of cultural documentation. This investigation aims to develop a protocol for heritage project processes using HBIM and an online work platform prototype where interdisciplinary stakeholders can unify and synchronise heritage information. Design Science Research (DSR) is adopted to develop this protocol. Research techniques used include documentary analysis, case studies, semi-structured interviews, participative workshop, and focus groups. An analysis of HBIM processes and a study of heritage stakeholders' requirements were performed through documentary analysis and semi structured interviews with stakeholders involved with relevant monuments. HBIM is proposed as the virtual model which will hold heritage data and will articulate processes. As a result, a simple and visual HBIM protocol, BIMlegacy, was developed. It is divided in eight steps and it contemplates all the stakeholders involved. BIMlegacy was applied in the Fixby Hall case study and its results were evaluated in a workshop with interdisciplinary stakeholders. An online work platform prototype, also named BIMlegacy, was developed, where interdisciplinary stakeholders can unify and synchronise heritage information. This innovative in-cloud system connects the intrinsic HBIM software database with heritage documentary databases using a Revit Autodesk Plug-in, a web Application Program Interface, a Structured Query Language server, and a web portal. BIMlegacy is an online platform to facilitate working but also a cultural diffusion web where general visitors can access to the information of the monuments. The BIMlegacy protocol and platform were implemented in two case studies Fixby Hall in Huddersfield (United Kingdom) and San Juan del Hospital in Valencia (Spain). BIMlegacy and the results of San Juan project were revealed in a workshop and in a focus group with external professionals for its evaluation. This research contributes within the theoretical knowledge highlighting modelling issues that were unknown before, benefits of using HBIM (a.e. the use of online platforms, filtering the information in HBIM database systems, the integration of cultural divulgation with HBIM) and needs in terms of implementing HBIM in practice such as the importance to have a simple and intuitive protocol to be useful and that the non-designer stakeholders require specific HBIM training. The practical contributions are the creation of the BIMlegacy protocol with the list of stakeholders and processes, the design of the BIMlegacy platform with the synchronisation of information in real time allowing the non-technical stakeholders to actively participate in HBIM models, the use of HBIM as management system, and the benefit for society and local communities since the rigorous information uploaded by professionals will be accessible to the public.
Jordán Palomar, I. (2019). Protocol to manage heritage-building interventions using Heritage Building Information Modelling (HBIM) [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/128416
TESIS

The scope of this project is to study the effectiveness of building information modelling (BIM) in performing life cycle assessment in a building. For the purposes of the study will be used “Revit” which is a BIM software and Tally which is an LCA tool integrated in Revit. The project is divided in six chapters. The first chapter consists of a theoretical introduction into building information modelling and its connection to life cycle assessment. The second chapter describes the characteristics of building information modelling (BIM). In addition, a comparison has been made with the traditional architectural, engineering and construction business model and the benefits to shift into BIM. In the third chapter it will be a review of the most well-known and available BIM software in the market. In chapter four life cycle assessment (LCA) will be described in general and later on specifically for the purpose of the case study that will be used in the following chapter. Moreover, the tools that are available to perform an LCA will be reviewed. Chapter five will present the case study that consists of a model in a BIM software (Revit) and the LCA performed by Tally, an LCA tool integrated into Revit. In the last chapter will be a discussion of the results that were obtained, the limitation and the possible future improvement in performing life cycle assessment (LCA) in a BIM model.

Building Information Modelling (BIM) has been well recognised all around the world as a technology driven approach that can bring radical improvements in construction productivity. There is considerable demand for using BIM in the KSA due to the large scale of its construction industry that needs to improve its productivity to overcome the persistent problems, such as project delays, planning inefficiencies, and waste of resources. The aim of this study is to investigate how the KSA construction organisations are implementing BIM for competitive advantage. Qualitative research approach was adopted to collect and analyse data from 46 BIM professionals. As part of the analysis of the interviews, content analysis was employed. The unit of analysis adopted for this study is the 'construction industry' and the embedded unit is 'individual employee'. The KSA construction industry is heading in the right direction for implementing BIM, however it is lacking BIM knowledge and does not understand BIM as a set of requirements. Therefore, an industry wide awareness-raising programme on the concept of BIM needs to be developed and deployed. The existing education and training programmes need some reorientation. Furthermore, the KSA construction organisations would not survive if they choose not to use BIM. BIM is widely used during planning and design stage. The four most important drivers for BIM implementation are: client pressure, competitive pressure, to improve collaboration, and government pressure. Eleven challenges were also revealed in this study of which organisational culture for change is the key challenge for adoption of BIM in the KSA construction organisations. Leaders of a change process need to realise that most changes within an organisation will usually cause and expect some change in its existing culture and sub-cultures. Therefore, having a better understanding of the effects change has on the sub-cultures of an organisation, group or team, will in turn help leaders of a change process better understand the resistance towards the change itself, and provide a more realistic approach on how to manage it. A BIM implementation framework is developed for the benefit of KSA construction organisations. It is recommended that KSA construction stakeholders including the government and professional regulatory bodies should work together in ensuring that the enablers of BIM adoption such as the provision of regulations and industry standards guiding the implementation are provided and strengthened to make the industry ready enough for BIM adoption.

Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2004.
Includes bibliographical references (leaves 223-232). Also available in electronic version. Access restricted to campus users.

This thesis aims to design and simulate a building integrated photovoltaic (BIPV) system for three demo buildings in Ludvika, Sweden, which is part of the Energy- Matching’s project under the European H2020 research scheme. A literature review was firstly conducted in the area of energy scenarios, engineering tools, methodologies and the workflows in design and building energy modelling. Then, this thesis developed the three-dimensional (3D) building models of the demo site, based on the Revit – a building information modelling (BIM) tool. Next, the PVSITES tool was considered as the main approach to simulate and optimize the BIPV system. Results on the energy output of the dedicated BIPV system, as well as financial costs, were finally obtained. It was found that the optimal location for the BIPV system was on the three buildings south and east faced roofs, with a total area of approximately 800 meters squared (m2) and a yearly irradiance potential between 1020 kilowatts hours per meter squared (kWh/m2) and 925 kWh/m2 respectively. The simulation showed that this BIPV system of 615 m2 with a power of 36 kilowatts-peak (kWp) could yield a maximum of 29,000 kilowatts hours per year (kWh), a 5% of the total yearly energy demand of the building and over the summer, this percentage increases considerably. With the estimated standards costs, the BIPV system have a 12 years payback period and 61% investment ratio over a 20 years period, concluding that a BIPV system on the Ludvika demo building is a feasible project, in terms of energy potential and as well as economically. This thesis also concludes that performing the BIPV simulation on the BIM platform is both reliable and flexible, and also has the potential to be reused, refined and scaled up.

Information management has been identified as an essential requirement for the structural engineering sector in a highly competitive AEC marketplace. In the field of structural engineering, information management represents a challenging discipline due to several factors such as a lack of clarity in the adoption of novel technologies, the multitude of different and ambiguous standards available, and the lack of human resources readiness. This research demonstrates that information quality plays a very important role in structural engineering information management as poor quality of structural engineering design information leads to reworks and failures in tendering and construction of projects. 80% to 90% of failures in buildings, bridges and other structures result from errors in design. Novel technologies and workflows have to be adopted by structural engineering organisations, which also need to improve the readiness of their human resources to enhance information management during conceptual, detailed and technical design phases. It is but natural for project teams in structural engineering organisations to expect proper quality of information during the bidding procedure, while providing documents for constructors and also while reporting to clients to make assured accurate decisions. A review of relevant literature revealed that Building Information Modelling has a contributory role in addressing the challenges of information management in various disciplines of the AEC industry. However, to ensure effective contribution of BIM on structural engineering information management, a clear determination is needed to improve information quality. Therefore, the aim of this research is to develop a conceptual framework for the adoption of BIM to enhance the quality of information in structural engineering organisations of the UK. In this research, an interpretivism philosophical position has been adopted that understands the real world and solves related problems over interpretations provided by participants. This research triangulated case study and survey approaches to the investigation of the research objectives in order to enrich confidence in presenting findings. A qualitative and quantitative approaches (or mixed-method approach) were used to thoroughly explore factors that have a key role in developing a framework for improving information within the AEC industry. Data collection involved the use of semi-structured interviews followed by scale questionnaires that were given to design experts in the UK. The qualitative data comprised of 12 interviews with experts performing the role of structural engineers, BIM managers and design managers in two structural engineering departments of two different large multidisciplinary organisations in the UK. In the context of quantitative data collection, 125 respondents replied to the researcher within two months. Finally, both qualitative and quantitative data were analysed and conceptual framework was developed and validated. This research points out that at present the UK structural industry is dissatisfied with the quality of structural engineering information and holds the opinion that catastrophic failure in the construction process may result from inadequacies in the information management system. From this research, it is evident that the key dimensions for structural engineering information quality can be explained by information accuracy, information accessibility, and information interoperability and information security. This research examined the key criteria that need to be considered while adopting BIM technological tools, workflows and human resources in the context of structural engineering sector. An initial conceptual framework developed by reviewing the existing literature illustrated the potential power of BIM to contribute to the level of information quality management in structural information management. Primary data collected in this research explored the role of crucial factors of BIM implementation in promoting the key dimensions of information quality management. This research contributes to knowledge by developing a conceptual framework which can be implemented in the ACE industry to improve upon information quality by assisting decision makers associated with structural engineering information management to adopt appropriate technological and workflow protocols, and also to ensure organisational human resource readiness in the contest of BIM. Avenues for further research in this area of information quality management in the structural engineering sector were also recommended by this study.

Building Information Modelling (BIM) and Life Cycle Assessment (LCA) are at the core of construction projects. LCA is one of the key elements of sustainability in the construction projects and an improved LCA process can be achieved through the adoption of BIM. Exploring the characteristics of a BIM-based LCA process from the different perspectives of interoperability and identifying the effects of adopting regionally different EPD databases are significant.  The LCA add-in tools, One Click LCA and Tally, have been selected to identify the differences in the LCA results caused by adopting regionally different Environmental Product Declaration (EPD) databases. To observe the differences in the LCA results, the LCA processes were run through the LCA add-in tools. The input data, the system boundaries and the LCA scope were kept the same for the LCA processes. The LCA results were produced through the integrated LCA add-in tools. The GWP values in manufacturing module, produced by One Click LCA, were embedded into the Solibri model of Akademiska Sjukhuset project. Value level of interoperability in the BIM-based LCA processes was detected and analyzed according to the interaction types that were obtained between the LCA add-in tools and the BIM software. Obstacles in increasing the value level of interoperability to a higher level in today’s BIM-based LCA processes were also focused. Furthermore, the benefits and drawbacks of the BIM-based LCA processes were identified. At last, the differences between BIM-based LCA and traditional LCA process were identified along with future possibilities. It was observed that adopting regionally different EPD databases has significant effects on the LCA results. The semantic detail level of the BIM model and the data extraction quality came to the forefront in identifying the benefits and drawbacks. The interaction types in the studied BIM-based LCA processes were identified as “Collaboration” interaction type. Accordingly, the value level of interoperability in both BIM-based LCA processes was obtained as the high level of value innovation along with efficiency and differentiation. Moreover, the convenience of use, time and resource efficiency and improved accuracy obtained through the BIM-based LCA processes were concluded as some of the major differences from the traditional LCA processes.
BIM (Building Information Modelling) och LCA (Life Cycle Assessment) ligger i kärnan av byggprojekt. LCA är ett nyckelverktyg för hållbarhetsarbete i byggbranschen och en förbättrad LCA-process kan uppnås i och med att tillämpa BIM-verktyg. BIM bjuder på många nyttor däremot detta arbete fokuserar på nyttan som BIM kan ge till LCA-processen. Därmed är forskning på grunden till Bim-baserad LCA-process och datas integrations- och konverteringsförmågan ytterst viktiga för detta arbete. LCA-verktyg One Click LCA och Tally och dess tillägg till CAD-mjukvaror har utvalts för att jämföra resultat vars indata är baserat på olika EPD-databaser (Environmental Product Declaration). För att iaktta skillnader i LCA-resultat, har LCA-processen gjorts med dessa LCA-verkytg. Indata, systemgränser och LCA-definitionsområde var samma för båda LCA-processer. LCA-resultat producerat av båda LCA-verktyg har jämförts utifrån klimatavtrycksperspektiv (Global Warming Potential) för materialframtagandesskede. One Click LCAs GWP-värden har importerats i en Solibri-modell för projektet. Slutligen har LCA-resultat av en Bim-baserad process jämförts med resultat av en klassisk LCA process. Påverkan av geografiskt anpassade EPD-databaser är avgörande för LCA-resultat. Materialframtagandesskede har störst miljöpåverkan i förhållande till andra livsskede. Semantisk detaljnivå av Solibri-modellen är avgörande för identifiering av för- och nackdelar av datas integrations- och konverteringsförmågan. Datainteraktionstyper studerade i BIM-baserade LCA-processer klassas som kollaborativ interaktionstyp. Integrations- och konverteringsförmåga av både BIM-baserade LCA-processer utvärderades på en hög nivå gällande förbättrade resultat, effektivitet och resultatkännslighet. Utöver dessa har BIM-baserade LCA-processer en förbättrad användbarhet och är mer tid- och resurseffektiva, vilka är huvudskillnader från en LCA-process utfört på klassiskt sätt.

The modern construction industry has undergone several changes since the introduction of Building information modelling (BIM). Mistakes that occur repeatedly and inevitably in the design and construction process could be controlled to a greater extent with the introduction of BIM. But using BIM for existing building has been a challenge. The usefulness of BIM is further challenged by features and interoperability issues with the lack of a user-friendly interface. Thus, many research opportunities when creating economical and automated BIM of existing buildings achieve a certain level of BIM maturity among stakeholders The core of this work is building pathologies and their remedial measures with the current industry's best Materials and Technologie by using BIM. In addition, the thesis proposes some seismic improvement interventions in order to equip the building for future seismic events. Furthermore, cost analysis and comparisons of costs for each intervention help us in understanding the economic viability of the project.

The design of modern buildings has become an increasingly complex activity. This is because of greater demands by Clients in terms of performance, quality, economy and time. These demands coupled with the complex iterative nature of design have resulted in increasing challenges in building design and in the management of the design process. The design process is information driven. Initial research by the writer showed that the main difficulties encountered during the management of the design process are information related. Information transfer and communication issues have been identified as key factors in the successful management of the process. It was concluded that current planning techniques are ill-suited for planning, monitoring and controlling building design because they neither accommodate the iterative nature of design nor permit the choice of alternatives. This research sought to develop better tools to aid design managers in improving the management of the process. Although all phases of the design process were examined, the main focus of this research was the Conceptual and Schematic design stages. To investigate these stages a generic data flow model was developed using the structured analysis diagramming technique of Data Flow Diagrams. The model was based on data from preliminary case studies and was validated by interviews with construction industry professionals. Industry feedback showed that improved management of the design process should not only include better techniques for planning and scheduling but also allow design managers to investigate the iterations between design tasks and predict the effects of different scenarios. Matrix partitioning techniques were used to identify ioops of iterative design tasks in the data flow model. A Discrete Event Simulation Model was developed to predict the effects of different scenarios. This model was based on data from the Data Flow Model and the identified iterative design loops. In addition, dynamic factors input by the user such as the durations and resources of the design tasks allowed the examination of the effects of different scenarios of information related criteria. These criteria were identified from industry survey and interviews. The simulation model was rigorously tested and validated through subsequent case studies and review by industry practitioners. The thesis concludes that the use of Data Flow Modelling in conjunction with Matrix Analysis and Discrete Event Simulation techniques provides a powerful tool for assessing the impact of change within the design process and could form the basis for managing and planning multi-disciplinary design work.

I denna rapport utforskas möjligheterna med BIM-modeller som finns på dagens byggarbetsplatser.  Trots att BIM erbjuder effektivare lösningar inom områden som bland annat visualisering, samordning och kvalitetsarbete, är det få projekt som aktivt använder sig av BIM på byggarbetsplatsen. Den här rapporten syftar till att belysa potentialen med BIM under produktionsfasen samt analysera svårigheter som finns, då produktionspersonal vill använda sig av BIM-modellen. Det långsiktiga målet med rapporten är att främja framtida användning av BIM i produktionsfasen. I arbetet produktionsanpassas delar av BIM-modellen för Skanskas och Vasakronans samverkansprojekt Klara C till att den kan användas ifrån en handhållen enhet. Genom att visa praktiska tillämpningar, med verktyg och BIM-modeller som finns tillgängliga idag, synliggörs möjligheter med BIM i byggproduktionen. För att ha möjlighet att påverka kvalitet och format på den BIM-modell, vilken ändå uppförs vid projekteringen, är det av stor vikt att tidigt beakta vilka effekter ett aktivt användande av BIM har i produktionsfasen. Slutsatsen sammanfattas i ett antal frågeställningar som planerande personal bör ha i åtanke, detta för att främja en utvecklande och värdeskapande användning av BIM även ute på byggarbetsplatsen. Vilken nytta tillför modellen i det specifika projektet? Ex. Samordning, tidsplanering eller visualisering. Hur ska modellen användas av produktionspersonalen? Ex. Vilken enhet (Surfplatta/PC) Vilka krav ställs då på BIM-modellen? Ex. Detaljeringsnivå, parametrar. Vad krävs av arbets- och informationsflöden? Ex. Format på leverans av modell/modeller. Är tillämpningen anpassad till användaren? Ex. Behövs det ytterligare stöd i form av kortare utbildningar eller kurser?
This thesis explores the potential of the BIM-models available at today's construction sites. There are few projects that actively use BIM on the construction sites, despite the fact that BIM offers efficient solutions in areas such as visualization, coordination and quality control. This report aims to highlight the potential of BIM during the production phase and to analyze the difficulties that exist when production staff wants to use the BIM model. The long term goal of this report is to promote use of BIM in the production phase. In this report, parts of the BIM-model of Skanska and Vasakronan collaborative project Klara C, is adapted so that it can be used from a handheld device. Positive effects from active use of BIM-models are shown with the tools and BIM-models that are available today. In order to influence the quality and setup of the BIM-model, which is produced during the design stage, it is of great importance that all potential applications of the model is taken in to account. The conclusion is summarized in a number of questions that planning staff should keep in mind in order to promote value-adding use of BIM. What benefits does the model bring the specific project? E.g. Coordination, time planning or visualization. How will the model be used by the staff? E.g. What kind of unit? (E.g. Tablet or PC) What is required from the model? E.g. Level of detailing, parameters. What work- and information flows are required? E.g. How is the model/models updated and delivered. Is the application user friendly? E.g. Is additional, supporting education required?

More than ninety per cent of projects are run by project teams and the stronger the team the more likely the project will succeed. Team building activities are performed to both increase team performance and to enhance the likelihood of project success. For the purpose of this study, information technology (IT) business projects were chosen as IT is a major driving force in business today and there is widespread dissatisfaction with the performance of IT business projects. In analysing the causes of dissatisfaction, increasingly researchers are recognising that technology is a secondary issue behind the human side of project team management. Business projects were chosen because increasingly IT is being used in the business environment to solve problems in the post-industrial era characterised by the service industry, while the manufacturing industry, from which much of the project literature has emerged, reduces. The importance of the project team in developing IT business projects is well recognised and managers are concerned about their ability to transform an ad-hoc collection of people assigned to a particular project into a coherent, integrated project team. In most cases the activities recommended to build a successful IT business project team have been theoretically based, rather than empirically founded. The goal of this research was to investigate the team building activities used on successful projects. To achieve this goal, the research defines the key measures of project success and establishes their relative importance; determines the most important team building activities for project success with experienced project managers; enhances the understanding of implementation of team building activities on successful projects; and provides suggestions on how to increase the likelihood of project success through focusing on team building activities. The research used the analytic hierarchy process (AHP) to develop a hierarchical model linking project success measures with team building activities. Confirmation of the AHP results and additional understanding of team building activities implementation was achieved by interviewing experienced project managers. The research found that customer satisfaction, although seldom used, was significantly more important as a project success measure than the three measures most often used - time, budget and scope. As identified by project managers, the most important team building activities for achieving customer satisfaction are team leadership; ensuring senior management support; staffing the team properly; planning the project with the team and empowering team members; building commitment among team members; developing strong communication channels and developing appropriate organisational interfaces. The research found successful projects focused on relationships in addition to the task focus of many project methodologies. The research findings on team building activities will enable project leaders on IT business projects to develop empowered project teams with stronger affiliations and support throughout the organisation. By empowering project teams to create effective internal and external relationships there will be fewer project failures, increased customer satisfaction and improved achievement of project success.

Successful management of design changes is critical for the efficient delivery of construction projects. Building Information Models (BIM) and the use of parametric modeling provide significant benefits in coordinating changes across different views in a model. However, coordinating changes across several discipline-specific models is significantly more challenging to manage. In this thesis, I present a case study that used observation-based empirical research methods to investigate current practices and the requirements of practitioners in conducting change management during the design and construction of a building project. The case study examines change management in the context of a multi-disciplinary collaborative BIM environment during the design and construction of a fast-track project. I documented the design changes, analyzed the change management processes and evaluated existing BIM tools in support of this process. Using examples from the case study, I identified the characteristics of design changes required for tracking the history of changes and understanding the consequences of changes. I developed an ontology of changes based on the identified characteristics and patterns in the observed changes. The ontology characterizes design changes based on changed component attributes (the geometry, position, and specification), dependencies between components (analytical and spatial), level of changes (conceptual, primary and secondary), timing of changes (design, procurement or construction stages) and time and cost impacts of changes. Based on the developed ontology, I further categorized numerous examples of changes encountered throughout the design and construction of the building in a taxonomy of changes. I then proposed a computational approach for tracking the consequence of changes in an information model. This research provides a common understanding of design change characteristics for practitioners who develop or utilize BIM tools for managing changes. The results of this study provide some possible directions for future developments in change management systems, particularly in reference to a BIM-based delivery process. Additional research is needed to implement and test these characteristics in a decision support system, and to analyze different types of changes across different types of projects.

The need for greater collaboration and communication are leitmotivs have been identified as core issues that need to be improved in the construction industry. A conceptual governance framework was developed to determine the relationships and interactions of the dimensions of collaboration required to improve the performance of BIM-enabled projects. Then, using precedents from case-law, the core dimensions of collaboration that are identified are legitimised and therefore, can be considered in conjunction with existing contract forms.

Desafios em coordenação causados pela falta de integração entre projeto, produção e montagem em empresas que entregam sistemas de edificações pré-fabricados do tipo engineerto- order (ETO) têm levado a um aumento na adoção de tecnologias de informação. Embora as ferramentas de Building Information Modelling (BIM) têm sido utilizadas há vários anos, muitas empresas ainda não puderam implementar integralmente e tampouco perceber as vantagens de fluxos de trabalho integrado por BIM. Por outro lado, infraestruturas robustas de tecnologia desenvolvidas no setor da manufatura, a exemplo das empregadas em Product Lifecycle Management (PLM), representam novas oportunidades para estabelecer melhores conexões entre as ferramentas necessárias para o desenvolvimento de produtos de engenharia sofisticada e para o planejamento e controle de sistemas de produção em ambientes complexos. O objetivo dessa pesquisa é entender o contexto de implementação de BIM nessas empresas Design Science Research foi a abordagem metodológica adotada nesta pesquisa. Um conjunto de estudos empíricos foram conduzidos em uma empresa de estruturas metálicas do Brasil. Esses estudos permitiram identificar desafios a nível de projeto e da organização, mostrando que informações do produto contidos nos modelos BIM poderiam ser reutilizadas a jusante da cadeia de valor para diversas finalidades, tais como análise de engenharia, detecção de conflitos, e simulações de produção e de operações logísticas. Portanto, soluções integradas devem ser co-desenvolvidas por membros de equipes de diferentes departamentos funcionais. Esse poderia ser o primeiro passo para a transição da atual utilização de funções BIM para o visionado ambiente BIM-PLM. O roteiro e as diretrizes de implementação – fundamentadas nas abordagens de Sistemas Sociotécnicos e Technology Roadmapping – foram propostas para apoiar a criação de uma visão para a gestão de tecnologia. Para tanto, esta investigação fornece as configurações para entender o contexto de implementação e apresenta fatores críticos relacionados à adoção de tecnologias digitais integradas.
Coordination challenges caused by the lack of integration between design, production and assembly in companies that deliver engineer-to-order (ETO) prefabricated building systems have resulted in the growing adoption of information technologies. Although Building Information Modelling (BIM) tools have been used in the construction industry for several years, many firms have not been able to fully implement them and take advantages of BIM integrated workflows. By contrast, robust technology infrastructures developed in the manufacturing sector, such as those employed in Product Lifecycle Management (PLM), represent new opportunities to establish better connections between digital tools which are necessary for the development of sophisticated engineering products, and planning and controlling production systems in complex environments, such as ETO prefabricated building systems. The aim of this investigation is to understand the context of BIM implementation in this type of firm. Design Science Research was the methodological approach adopted in this investigation A set of empirical studies were conducted in a Steel Fabricator company from Brazil. Those studies enabled the identification of challenges at project and organizational level by showing that product information contained in BIM models could be reused downstream in the value chain for different purposes, such as engineering analysis, clash detection, simulation of logistics and assembly operations. Therefore, integrated solutions should be co-developed by team members from different functional departments. This would be the first step for the transition from the current utilization of BIM functions towards the envisioned BIM-PLM environment. A roadmap and a set of guidelines for implementation, grounded on Socio- Technical Systems and Technology Roadmapping approaches, have been proposed to support the creation of a vision for technology management. In order to do so, this investigation provides the settings to understand the implementation context and critical factors related to the adoption of integrated digital technologies.

Inter-organisational trust is increasingly important among supply chain participants, where threats are building up from sources out of organisational control. The same problem is faced in the cyber security field, where threat level increases from the changes outside organisational boundaries. Each value chain participating in the supply chain must be secured. Trust building is mandated among all trust network members. The business interaction between supply chain participants is enabled by building inter-organisational trust first. This study provided ways to build this inter-organisational trust by considering steps to take in information security management system (ISMS) implementation. ISMS is set of processes, documentation, activities and resources that together secure assets within an organisation. It must be assembled to support strategic business goals and comply selected requirement criteria. Due to different ways and purposes, organisations implement ISMS’s and obtain the security standard certification; it is not a proof of secure business processes or trust per se. Instead, it is a good starting point for trust building. This study used narrative literature review to find supporting and resisting elements of inter-organisational trust that can consider in ISMS. The study limited the research into a very narrow area between information processing science, behaviour sciences and discipline of management. The research found several elements (102) that can be considered in ISMS to have the effect to interorganisational trust building. The findings were categorised using ISO/IEC 27001 (2013) ISMS implementation steps to provide concrete support for security professionals. There are none or very limited number of research literature on exact combined topic of inter-organisational trust building and ISMS. The multidisciplinary phenomenon of information security coupled with inter-organisational trust requires more attention from the research community. Schools teaching information security should develop their course coverage to support this multidisciplinary phenomenon in several view points, not just from their own discipline to achieve producing suitable resources for the industry
Yritysten välinen luottamus on yhä tärkeämpää toimitusketjuihin osallistuvien organisaatioiden keskuudessa, missä uhat syntyvät yritysten tietoturvakontrollien ulkopuolelta. Sama ongelma kohdataan kyberturvallisuudessa, missä uhkataso kasvaa muutoksista organisaatiorajojen ulkopuolella. Jokaisen toimitusketjuun osallistuvan on suojauduttava. Luottamuksen rakentamisen tehtävä on kaikkien jäsenien yhteinen asia luottamusverkostossa. Toimitusketjuun osallistuvien on rakennettava organisaatioiden välinen luottamus ennen liiketoiminnan aloittamista. Tässä tutkimuksessa tarjotaan keinoja kehittää organisaatioiden välistä luottamusta tietoturvallisuuden hallintajärjestelmän toteuttamisessa. Tietoturvallisuuden hallintajärjestelmä koostuu prosessien, dokumentaation, toimintojen ja resurssien yhdistelmästä, mitkä yhdessä turvaavat tietovarannot organisaation sisällä. Se on koostettava tukemaan liiketoiminnan strategisia tavoitteita ja täyttää valitut kriteeristöt. Koska tietoturvallisuuden hallintajärjestelmiä sertifioidaan eri tavalla, sekä eri tarkoituksia varten, niin sertifioitu standardi ei itsessään takaa turvallisia liiketoimintaprosesseja, vaan se toimii hyvänä lähtöpisteenä luottamuksen rakentamiselle. Tässä tutkimuksessa sovellettiin kirjallisuuskatsausta yritysten välisten luottamusta edistävien ja estävien elementtien löytämiseksi, mitä tietoturvallisuuden hallintajärjestelmän toteutuksessakin voitaisiin soveltaa. Tutkimus toteutettiin rajatulla alueella tietojenkäsittely-, käyttäytymis-, sekä hallintotieteiden yhtymäkohdassa. Tutkimus löysi useita elementtejä (102), mitkä huomioimalla tietoturvallisuuden hallintajärjestelmässä voidaan vaikuttaa yritysten välisen luottamuksen rakentamiseen. Löydökset jaoteltiin ISO/IEC 27001 (2013) tietoturvallisuuden hallintajärjestelmän toteutusaskelien mukaisesti, jotta tulokset tukisivat parhaiten tietoturvallisuuden asiantuntijaa konkreettisella tasolla. Tutkimuspapereita ei ole yhtään, tai niitä on hyvin rajoitetusti missä tietoturvallisuuden hallintajärjestelmän ja yritysten välisen luottamuksen rakentaminen yhdistetään. Monitieteinen tietoturvan ilmiö yhdistettynä yritysten välisen luottamuksen rakentamiseen vaatii enemmän huomiota tiedeyhteisöltä. Tietoturvallisuutta kouluttavien oppilaitosten tulisi kehittää tietoturvallisuuden kurssitarjontaansa tukemaan monitieteellistä lähestymistapaa ei vain oman tutkimusalan näkökulmaa, jotta teollisuus saisi sopivampia resursseja käyttöönsä

In the construction sector, capturing the building product in a single information model with good interoperable capabilities has been the subject of much research efforts in at least the last three decades. Contemporary advancements in Information Technology and the efforts from various research initiatives in the AEC industry are showing evidence of progress with the advent of building information modelling (BIM). BIM presents the opportunity of electronically modelling and managing the vast amount of information embedded in a building project, from its conception to end-of-life. Researchers have been looking at extensions to expand its scope. Sustainability is one such modelling extension that is in need of development. This is becoming pertinent for the structural engineer as recent design criteria have put great emphasis on the sustainability credentials in addition to the traditional criteria of structural integrity, constructability and cost. Considering the complexity of nowadays designs, there is a need to provide decision support tools to aid the assessment of sustainability credentials. Such tools would be most beneficial at the conceptual design stage so that sustainability is built into the design solution starting from its inception. This research work therefore investigates how contemporary process and data modelling techniques can be used to map and model sustainability related information to inform the structural engineer’s building design decisions at an early stage. The research reviews current design decisions support systems on sustainability and highlights existing deficiencies. It examines the role of contemporary information modelling techniques in the building design process and employs this to tackle identified gaps. The sustainability of buildings is related to life cycle and is measured using indicator-terms such as life cycle costing, ecological footprint and carbon footprint. This work takes advantage of current modelling techniques to explore how these three indicators can be combined to provide sustainability assessment of alternative design solutions. It identifies the requirements for sustainability appraisal and information modelling to develop a requisite decision-support framework vis-à-vis issues on risk, sensitivity and what-if scenarios for implementation. The implementation employed object-oriented programming and feature modelling techniques to develop a sustainability decision-support prototype. The prototype system was tested in a typical design activity and evaluated to have achieved desired implementation requirements. The research concludes that the utilized current process and data modelling techniques can be employed to model sustainability related information to inform decisions at the early stages of structural design. As demonstrated in this work, design decision support systems can be optimized to include sustainability credentials through the use of object-based process and data modelling techniques. This thesis presents a sustainability appraisal framework, associated implementation algorithms and related object mappings and representations systems that could be used to achieve such decision support optimization.

Il Building Information Modelling nasce da un processo di integrazione sostenibile, basato sull'interoperabilità dei processi. La caratteristica vincente è la circolarietà delle informazioni: ogni informazione è gestita come parametro di un ricco e complesso modello parametrico dell'edificio; la geometria, i materiali, i costi ed i tempi sono gestiti come parametri internamente collegati e quindi variabili di uno stesso sistema. Nel caso di beni storici, la maggior parte degli edifici possiede vincoli intrinseci che influenzano tali parametri. I materiali non possono essere scelti liberamente, in quanto parte di un organismo esistente, la geometria dell'edificio è definita e difficilmente sarà variata negli interventi di recupero. Nella presente tesi si applica il metodo CLOUD2FEM al mondo dell'Historic Building Information Modelling (HBIM) concentrandosi sullo studio della Rocca Estense di San Felice sul Panaro, colpita dal sisma dell'Emilia e attualmente inagibile. La procedura CLOUD2FEM permette di trasformare le informazioni ricavate dal laser scanner in mesh chiuse e regolari, generando in modo semi-automatico un modello FEM 3D. Nel caso di costruzioni complesse, la cui geometria non può essere ricondotta a modelli semplificati, è necessario valutare l'attendibilità del modello strutturale. Nel caso in esame, la validazione è stata condotta mediante il confronto del danno rilevato con il danno simulato. La flessibilità del modello permette di aggiungere dettagli inizialmente non rilevati: ogni informazione è inserita nel modello attraverso un parametro differente, al fine di eseguire analisi sullo stato di fatto e su futuri stati di progetto con semplice aggiornamento dei parametri.

Industria 4.0, digitalizzazione, smart building, realtà virtuale: sono termini che stanno entrando nell’uso comune anche di un settore tradizionalista come quello delle costruzioni. Un settore che si trova al centro di una rivoluzione di approcci, metodi e di processi, e che vede al centro di tale dinamica un protagonista assoluto: il Building Information Modelling. Il BIM è la più recente tappa di un percorso evolutivo che ha profondamente trasformato in questi ultimi trent’anni il mondo della progettazione nel settore delle costruzioni in tutte le sue diverse declinazioni e competenze: architettonica, ingegneristica, impiantistica, paesaggistica, gestionale, ecc. L’utilizzo di un solo modello digitale e di informazioni in tutte le fasi del progetto ha reso inoltre possibile il controllo della programmazione dei lavori, con la possibilità di intervenire fin dalle prime fasi dell’iter progettuale, eliminando errori e tenendo sotto costante controllo il costo di realizzazione dell’opera. Obiettivo della tesi è di individuare vantaggi e valori aggiunti dal BIM. rispetto alle metodologie tradizionali, con particolare riferimento all’organizzazione ed alla sicurezza del cantiere. Il lavoro si svolge dapprima attraverso la consultazione di documentazione informativa sul BIM, per capirne gli aspetti generali quali nascita, sviluppo, normative, e, successivamente, attraverso l’analisi di un caso di studio di un edificio residenziale. Utilizzando diversi programmi, si sviluppa il modello BIM del progetto, per poi passare a svolgere certi compiti della direzione lavori e della sicurezza del cantiere, per sperimentare il supporto che il BIM può portare in questi ambiti, in termini di vantaggi e di valori aggiunti.