Дисертації з теми "Building construction engineering"
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Chan, Po-keung, and 陳保強. "Project management of building services engineering work in Hong Kong building construction industry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31251171.
Повний текст джерелаDoherty, Grant E. "How BIM and integrated practice may change architectural, engineering, and construction education." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1944186301&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Повний текст джерелаJones, Andrew M. "Design and construction for traditional house building." Thesis, Aston University, 1990. http://publications.aston.ac.uk/14272/.
Повний текст джерелаSugimoto, Fumio. "Globalization of international engineering and construction firms for building their competitiveness." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14248.
Повний текст джерелаWong, Wai-keung. "Project management of building services engineering in Hong Kong /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25950071.
Повний текст джерелаFahdah, Ibrahim. "Distributed IT for integration and communication of engineering information for collaborative building design." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/10448/.
Повний текст джерелаKalavagunta, Ravi P. "Prevention of Mold in Building Construction." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155140670.
Повний текст джерелаLaw, Chung-yu Ellen. "The application of concurrent engineering in the construction process in Hong Kong /." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2594986x.
Повний текст джерелаNkado, Raymond Nnaemeka. "A construction time information system for the building industry." Thesis, University of Reading, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303176.
Повний текст джерелаMarshall, Rupert W. "An investigation into productivity improvement on civil engineering and building construction sites." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/23612.
Повний текст джерелаChunduri, Sreelatha. "Improving concept learning in green building by addressing students' learning styles and prior knowledge." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/2356.
Повний текст джерелаMAHMOOD, NABEEL ALI. "Real-time Construction Site Safety Risk Detection for On-Foot Building Construction Workers Using RFID." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480660649914123.
Повний текст джерелаHansen, Maia A. (Maia Allis) 1968. "Building green : investment opportunities in sustainable construction materials." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46198.
Повний текст джерелаIncludes bibliographical references (leaves 111-114).
by Maia A. Hansen.
M.B.A.
S.M.
Li, Yue. "Fragility Methodology for Performance-Based Engineering of Wood-Frame Residential Construction." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7465.
Повний текст джерелаVernikos, Vasileios K. "Realising offsite construction in the civil engineering and infrastructure sector." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/23521.
Повний текст джерелаRoss, Sheila. "Bamboo construction as a sustainable building technology from a structural and materials engineering perspective." Master's thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/33901.
Повний текст джерелаPourghazian, Hanif. "Industrial Construction Methods for Cost-Effective and Sustainable Multi-Storey Buildings." Doctoral thesis, Stockholm : Royal Institute of Technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9212.
Повний текст джерелаPavitt, Trevor C. "Managing construction interfaces within the building facade." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/6789.
Повний текст джерелаWong, Wai-keung, and 汪偉強. "Project management of building services engineering in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31251742.
Повний текст джерелаSettlemyre, Kevin (Kevin Franklin) 1971. "Operational, aesthetic, and construction process performance for innovative passive and active solar building components for residential buildings." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9102.
Повний текст джерелаIncludes bibliographical references (leaves 295-300).
A system-based framework creates the ability to integrate operational, aesthetic, and construction process performance. The framework can be used to evaluate innovations within residential construction. By reducing the constraints for use, the framework is adaptable and flexible to specific projects and to the alternatives developed by the user. Passive and active solar design strategies are brought together in the creation of the Energy Producing Wall (EPW) components. Two component types, EPW1 & EPW2, can be adapted to create five different panel types. These units can be installed on the roof or vertical walls, and provide the innovative subject for evaluation within the framework. Four alternatives within two prototype homes, located in two climates, were analyzed to represent the existing and potential stock of housing and to provide the source of input data into the framework. An adaptable spreadsheet analysis, based on past and current analytical methods, establishes the EPW's potential benefit on the heating, cooling, electricity and total energy consumption loads within the prototype designs . Visualization models combined with physical models assess the aesthetics. The development of a Dynamic Process Model for Light Wood Framing (DPM-LWF) represents the framing construction process for the prototype designs, and provides time and cost impacts of the EPW alternatives. The. results from each analytical tool are combined to analyze the impacts of implementation, case results and sensitivities within the cases. A 'case result format' presents the results of the multiple alternatives for direct comparison, and can guide further investigations and information within the document. The EPW components demonstrated a 95% benefit for the electrical load of the "Modern Design" in Phoenix (currently), and the potential to reach over 100% benefit of the heating load in Boston for the "Sears Design."
by Kevin Settlemyre.
S.M.
Gundogan, Handan. "Motivators And Barriers For Green Building Construction Market In Turkey." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614371/index.pdf.
Повний текст джерелаGreen Buildings&rsquo
play an important role to increase the implementation of sustainable strategies in the construction industry. Although there is a process of change within Turkish building environment towards implementation of green strategies nowadays, limited research has been conducted to search the reasons that drive the market and the important barriers that block the green building movement. This thesis is intended to fill this gap in the literature and contribute to the field of knowledge regarding green building construction in Turkey. The results shall benefit both government and market practitioners for the development of green building market. The data presented in this thesis are mainly obtained from a comprehensive questionnaire survey developed based on a deep literature search. The questionnaire is completed by professionals who have an interest on this topic or who have involvement in green building projects. In order to analyze the gathered data, a variety of statistical methods are used and the results are evaluated in detail. In addition to questionnaire survey, six case study green building projects in Turkey are examined and so a snapshot picture of current situation of the green movement is taken. Accordingly, financial considerations, faced difficulties and lessons learned are explained. The findings shall assist in understanding the real needs for green building development in Turkish construction sector. Finally, recommendations for government and researchers are presented so as to steer the construction sector in the direction of sustainability.
Deshpande, Pushkar V. (Pushkar Vijaykumar) 1977. "Construction management : preliminary cost estimate and scheduling of MIT's Civil and Environmental Engineering building." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80582.
Повний текст джерелаPark, Moonseo 1967. "Robust control of cost impact on fast-tracking building construction projects." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9500.
Повний текст джерелаIncludes bibliographical references (leaves 74-75).
The fast-tracking delivery method has received considerable attention in recent years. Its time saving feature has placed it as an alternative to the sequential method. Effective fast-tracking may shorten delivery time and lower project costs. However, it should be highlighted that fast tracking also inherits a greater potential for an unexpected cost increase due to uncertainty in planning and management. To handle such inherent risks, fast-tracking should be undertaken with proper planning and management in a systematic manner. A closer observation of the design and construction process reveals that all of the cost-increasing factors in fast-tracking are directly or indirectly related to non value-adding or corrective changes. These changes are mainly attributed to uncertainty that is rooted in the interdependency of project tasks. Consequently, reducing this interdependency and managing the undesirable interactions among project tasks hold a key to successful fast-tracking. To meet these challenges, a robust planning and control methodology is developed to provide a systematic solution. The proposed methodology is elaborated based on concurrent engineering and system dynamics. Concurrent engineering is applied to develop an overlapping framework for the construction processes and to enable the interdependency among them to be minimized. The system dynamics modeling approach helps analyze and quantify the effect of dynamic interactions among the design and construction processes. The final result of this research may help ensure that the fast-tracking approach achieves sizable delivery time reductions without driving up costs. The provision of an optimal overlapping strategy, workforce control policy, and schedule adjustments assists in satisfying this goal.
by Moonseo Park.
S.M.
Song, Jing 1972. "Building robust chemical reaction mechanisms : next generation of automatic model construction software." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/30058.
Повний текст джерелаIncludes bibliographical references (p. 308-319).
Building proper reaction mechanisms is crucial to model the system dynamic properties for many industrial processes with complex chemical reaction phenomena. Because of the complexity of a reaction mechanism, computer-aided reaction mechanism generation software appeared in recent years to help people efficiently build large reaction mechanisms. However, the limitations of those programs, such as not being able to model different types of reaction systems and to provide sufficiently precise thermodynamic and kinetic parameters impede their broad usage in real reaction system modeling. Targeting the drawbacks in current first-generation reaction modeling software, this thesis presents the second-generation of reaction mechanism construction software, Reaction Mechanism Generator, (RMG). In RMG, a new reaction template method is proposed to help quickly and flexibly define different types of reaction families, so that users can easily characterize any reaction system of interest without modifying the software. Furthermore, this work also presents new functional group tree approaches to construct hierarchical structured thermodynamics and kinetics databases for managing a large number of parameters, so that people are able to quickly and precisely identify better kinetics for different reactions in the same reaction family and to easily extend and update the databases with the latest research results. This new data-model dramatically improves the interface between the chemistry and computer science, removing many of the ambiguities that have plagued the field of chemical kinetics for many years, and greatly facilitating the maintenance and documentation of both the software and the databases that provide the key inputs to any chemical kinetic model.
(cont.) The author applied object-oriented technology and unified modeling language in system analysis, architecture design, and implementation of RMG. Therefore it is designed and developed into a robust software with good architecture and detailed documentation, so that this software can be easily maintained, reused, and extended. RMG is successfully applied to generate a reaction mechanism for n-butane low temperature oxidation, which includes a complex autoignition process. The model generated by RMG caught the fundamental phenomena of autoignition, and the predicted ignition delay time and many major products' yields are in very good agreement with experimental data. This is the first time that model generation software automatically generated such a complicated reaction mechanism without human interference, and provided precise predictions on ignition delay and major products yields consistent with experimental data.
by Jing Song.
Ph.D.
Beveridge, Simon. "Best Practices Using Building Information Modeling in Commercial Construction." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3392.
Повний текст джерелаSmith, William Noble. "Current State of Practice Associated with the Use of Building Information Modeling (BIM) in the Custom Home Building Industry." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6632.
Повний текст джерелаSemlies, Christopher J. 1974. "Inter-firm collaboration in the implementation of structural innovations in building construction." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9717.
Повний текст джерела"February 1999."
Includes bibliographical references (p. 159-162).
It is increasingly recognized that the development of many innovations typically requires collaboration across disciplines because an innovation in one area will often necessitate changes in other areas. In the construction industry, the problem is not merely one of interdisciplinary collaboration within a vertically integrated firm, but one of inter-firm collaboration over the life of a project because dozens of specialized firms typically work together on the delivery of built facilities. Thus, firm boundaries and other factors can affect the success of the implementation of innovations in construction. The goal of this research is to gain an understanding of the factors that influence inter-firm collaboration in the development and implementation of construction innovations. Ten case studies of structural system innovations implemented on 17 projects were developed in order to analyze the role of these factors, including contract type, delivery system, transaction cost, bond, appropriation of costs/benefits, and sharing of competencies on inter-firm information. The results from the case studies often contradict the expectations of principal-agent theory and other areas of management and economic theory related to inter-firm collaboration for innovation. For example, all of the innovations were implemented under outcome-based contracts. This result is surprising because the common perception in the literature is that the widespread use of outcome-based contracting hinders innovation. Also surprising was that, of the innovations introduced by contractors under outcome-based contracts, many were quality enhancing. However, one would expect that, due to the cost pressures of their contract, a contractor would be more likely to implement cost-saving innovations. A strong relationship was found between innovative activity and the integration of the design and construction functions, supporting the belief that the traditional delivery system used in construction, which separates design from construction, is a barrier to innovation. In addition, it was found that, in this set of cases, contractors were more likely to introduce innovations on projects that used integrated delivery systems. It was also found that investment in co-specialized assets occurred in conjunction with outcome-based contracts. This finding contradicts the expected result, which is that such investment should occur most frequently in behavior-based contracting situations. it is hoped that this knowledge will enhance our understanding of the process of innovation development and implementation in the construction industry in particular, and in other industries in general, specifically in fields where the design and realization of complex systems involves multiple firms. Owners can use this information to organize projects to implement innovations successfully and construction and other companies can use it to improve their strategies regarding innovation.
by Christopher J. Semlies.
S.M.
Meraghni, Leila. "An integrated information model for construction materials management." Thesis, Liverpool John Moores University, 1997. http://researchonline.ljmu.ac.uk/5596/.
Повний текст джерелаAndresen, Inger. "A Multi-Criteria Decision-Making Method for Solar Building Design." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Architecture and Fine Art, 2000. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-451.
Повний текст джерелаThe background for this thesis is based on the assumption that the success of solar buildings relies on the assessment and integration of all the different design objectives, called criteria. These criteria are often quite complicated to deal with (e.g. environmental loading) and may be conflicting. The different design issues and the many different available energy technologies call for different areas of expertise to be involved in the design of solar buildings. This makes it difficult to evaluate the overall “goodness” of a proposed design solution. Also, the communication between design professionals and the client becomes complicated.
The goal of this work was therefore to produce a means for the design team and clients to be able to better understand and handle holistic solar design. A first hypothesis was that a structured approach for evaluating design alternatives might be a means to this end.
In order to specify an approach that would fit into the building design process, an analysis of design process theory and building design practice was carried out (chapter 2). Also, special solar design issues were investigated. This analysis resulted in the following conclusions:
· Most building design processes start out with no clearly defined goals or criteria of success. The design criteria are refined and discovered through evaluation and feedback on alternative design proposals.
· Design involves a lot of subjective value judgements, and decisions are often based on experience, “gut feeling”, or intuition. Design options are evaluated based on quantitative and qualitative performance measures. There exists no objective optimal design solution.
· It is possible to identify some main activities that are common to most design processes. These are categorized into 4 main tasks: problem formulation, generation of alternatives, performance prediction and evaluation. The activities are very much overlapping and dependent on each other.
· Decision-making in design happens mainly through evaluation of proposed design solutions.
Skelton, Ian R. "Innovation in construction techniques for tall buildings." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/19637.
Повний текст джерелаCarlsén, Adam, and Oscar Elfstrand. "Augmented Construction : Developing a framework for implementing Building Information Modeling through Augmented Reality at construction sites." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69254.
Повний текст джерелаKuranchie, Francis Atta. "Characterisation and applications of iron ore tailings in building and construction projects." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2015. https://ro.ecu.edu.au/theses/1623.
Повний текст джерелаDecruz, Aloysius. "Development and integration of a green roof model within whole building energy simulation." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/32544/.
Повний текст джерелаAlekhtyar, Mumena. "Building Information Modelling and Virtual Design and Construction : Differentiations and interaction." Thesis, KTH, Fastigheter och byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231602.
Повний текст джерелаLaw, Chung-yu Ellen, and 羅頌瑜. "The application of concurrent engineering in the construction process in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31251808.
Повний текст джерелаKing, D. C. "The Engineering Council's influence on Building Services Engineering education and qualifications : towards an internationalist education and training model." Thesis, Liverpool John Moores University, 2017. http://researchonline.ljmu.ac.uk/7666/.
Повний текст джерелаHajjar, Gabriel. "Design and construction of a photoplotter : Building a device for rapid prototyping of PCBs." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354717.
Повний текст джерелаVermeulen, Bernard. "The role of a design engineer in safety of building projects." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86355.
Повний текст джерелаOne of the causes for money to be wasted on construction sites is accidents. The reason is that an accident on site is an unplanned event typically relating to the loss of production or the loss of life. Many industry stakeholders and role players have focused on construction health and safety and to improve this area of concern; however, construction health and safety are not significantly improving. Construction still continues to contribute a large number of fatalities and injuries relative to other industry sectors. During the construction phase, poor construction health and safety performance is attributable to a lack of management commitment, inadequate supervision, and a lack of health and safety training and - systems. Health and safety systems do not only include excellent health and safety management on site, but rather an integrated approach on health and safety issues from the conceptual design phase by all stakeholders participating. This integrated approach includes the design done by the engineer. The inspiration behind this research is the question of whether South African Engineers design buildings safe for construction. The lack of knowledge by engineers with regard to construction processes, the lack of health and safety enforcement in the engineering offices and construction sites, and whether engineers adhere to safe design principles is the subject of investigation in this research. Therefore, this research aims to investigate the role of the design engineer in the safety of building projects. Specifically, it investigates to what extent the design engineer can contribute to site safety, and to what extent this is actually taking place. The Construction Regulations states the engineer can be appointed to act on behalf of a client and should share any information that might affect the health and safety of construction employees with the contractor. By means of a literature study, the investigation of case studies and the investigation of questionnaires to which a percentage of South African engineers responded, this research identified the information that should be shared by the design engineer with the contractor. The information can be shared by indicating hazardous activities or - locations on the actual drawings. Information can also be shared by specifying and reminding the contractor of certain health and safety hazards in the health and safety specifications of the building project. Although the Construction Regulations state that the safety hazards associated with most construction processes are the responsibility of the contractor, it will be beneficial for the safety of the employees if the engineer also consults the contractor on the hazards identified by him or her during the early design stages. Early collaboration between the engineer and contractor is also beneficial for the safety of construction employees. The result is an integrated approach towards safety hazard identification and mitigation. Having adequate knowledge with regard to construction processes allows the engineer to be aware of possible safety hazards. This will result in the correct information to be shared with the contractor and incorporated into the early design phases of the project to ensure a healthy and safe working environment. The study shows that a percentage of South African engineers have a lack of site experience, a lack of safety training, a lack of knowledge with regard to the content of the Construction Regulations, and a lack of knowledge with regard to construction processes. These shortcomings can be detrimental to site safety.
de, Fatima Dias Jane. "Reuse of Construction Materials." Thesis, Högskolan Dalarna, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-30024.
Повний текст джерелаJeyakumar, Ratnam. "The implementation and effectiveness of value engineering in the United Arab Emirates." Thesis, University of South Wales, 2013. https://pure.southwales.ac.uk/en/studentthesis/the-implementation-and-effectiveness-of-value-engineering-in-the-united-arab-emirates(b8942ce3-dfe1-4865-a385-85a09b77982f).html.
Повний текст джерелаMayon, Isaac Dompo. "Exploring Earth-Building Technology for Liberia." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etd/1896.
Повний текст джерелаTabesh, Mahsa. "An investigation to introduce BIM in undergraduate civil engineering teaching to improve construction processes." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96697.
Повний текст джерелаENGLISH ABSTRACT: The popularity of Building Information Modelling (BIM) has grown rapidly within the construction industry, motivated by its potential advantages for improving construction processes. A majority of the world’s leading firms have adopted BIM solutions by moving from 2D or even 3D CAD to BIM techniques. However, for companies in South Africa this transition has not been the same as for firms in Europe and the USA. Besides the improvements which can be achieved by viewing a computer model of the designed facility, BIM provides a multi-disciplinary tool, to be used for collaboration of all project parties in a real-time simulated model of construction process. Due to this remarkable feature, the way of constructing a designed facility can be viewed and analysed from the conceptual stages and can improve design and construction processes. As this object-oriented approach has been developed in the industry, handbooks and standards have been released to support BIM utilization. A considerable amount of research has been conducted to establish the advantages and barriers in applying BIM. A large number of investigations have also been performed for reporting quantified achievement of construction projects executed in BIM environment. As such, a new knowledge field has been added to the industry requirements. BIM knowledge has become more demanding and BIM-specialist requirements have been enhanced. As a result, academia have been stimulated to raise BIM awareness among engineers, architects and construction managers to train sufficiently qualified professionals for applying BIM tools. Universities started offering different courses and programmes to fulfil this need while a variety of strategies have been developed for introducing BIM to the students at different levels. This research studied the current industry situation in South Africa regarding application of BIM and the role of universities to achieve a suitable level of BIM capability. The industrial and educational situations from some pioneering countries are reviewed as lessons for the South African adoption of BIM. Comparing these facts, proposals for introducing BIM through university courses are provided to satisfy industry requirements for the application of BIM in projects.
AFRIKAANSE OPSOMMING: Die gewildheid van Bou Inligtingsmodelle (Building Information Modelling (BIM)) het vinnig gegroei in die konstruksie bedryf as gevolg van die voordele wat dit vir die verbetering van konstruksieprosesse inhou. ʼn Groot aantal van die wêreld se voorste konstruksie maatskappye het al die oorgang vanaf 2D en selfs 3D RGT (Rekenaar Gesteunde Tekenstelsels) na BIM gemaak. Ongelukkig is hierdie oorgang na BIM metodes nog nie so doeltreffend vir maatskappye in Suid- Afrika soos in die geval van Europese en Amerikaanse maatskappye nie. Daar is al bewys dat die vermoë om na ʼn rekenaarmodel van ʼn ontwerpte fasiliteit te kan kyk baie voordelig is. Daarbenewens bied BIM ʼn multidissiplinêre grondslag wat vir die samewerking van alle betrokke partye van die projek gebruik kan word en die projek kan simuleer as ʼn funksie van tyd. Hierdie tyd-afhanklike simulasie stel die bestuur in staat om die manier waarop ʼn ontwerpte fasiliteit gebou word, reeds vanaf die konsepsuele fase, te beskou en te ontleed. Hierdie vermoë kan die ontwerp en konstruksieproses asook die fasiliteitsbestuur proses merkwaardig verbeter. As gevolg van die ontwikkeling van hierdie objek georiënteerde benadering deur die bedryf, is handboeke en standaarde vrygestel om die gebruik van BIM te ondersteun. ‘n Merkwaardige hoeveelheid navorsing is al gedoen om die voordele en struikelblokke in die toepassing van BIM te identifiseer. ‘n Groot aantal ondersoeke is ook al geloots om verslag te doen op die prestasie van konstruksie projekte wat deur middel van BIM uitgevoer was. Vanuit die bogenoemde ondersoeke en navorsing is 'n nuwe kennisveld gevoeg by die vereistes van die bedryf. Die kennis van BIM het al hoe meer veeleisend geword en die vereistes vir ʼn BIMspesialis het verhoog. As gevolg hiervan is akademici aangemoedig om ingenieurs, argitekte en konstruksie bestuurders meer bewus te maak van BIM sodat daar genoeg professionele werkers opgelei kan word wat BIM kan implementeer. Universiteite het begin om kursusse en programme aan te bied om hierdie behoefte te bevredig, terwyl 'n verskeidenheid metodes om studente bloot te stel aan BIM op verskillende vlakke ontwikkel is. In hierdie navorsingsprojek is die huidige stand van Suid-Afrikaanse konstruksiemaatskappye ten opsigte van die toepassing van BIM ondersoek. Daarbenewens is die rol wat universiteite speel om 'n voldoende vlak van BIM vaardigheid te bereik ook ondersoek. Die industriële en opvoedkundige omgewings van 'n paar vooraanstaande lande word gebruik as lesse vir die Suid-Afrikaanse aanvaarding van BIM. Deur hierdie feite te vergelyk, is voorstelle gemaak vir die bekendstelling van BIM in universiteitskursusse om aan industrievereistes te voldoen vir die toepassing van BIM op projekte.
Elsayah, Othoman S. "A framework for improvement of contractor selection procedures on major construction project in Libya." Thesis, Edinburgh Napier University, 2016. http://researchrepository.napier.ac.uk/Output/453191.
Повний текст джерелаAlazzaz, Faisal Abdullah H. "Assessing productivity in off-site construction methods of managing engineering and building projects: An operational management approach." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/1847.
Повний текст джерелаWilliams, Gerald Herman Jr. "An Evaluation of Public Construction Contracting Methods for the Public Building Sector in Oregon using Data Envelopment Analysis." PDXScholar, 2003. https://pdxscholar.library.pdx.edu/open_access_etds/1645.
Повний текст джерелаAI, Hussein Zaid K. "Using Building Information Modeling (BIM) and the Last Planner System (LPS) to Reduce Construction Process Delay." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1746.
Повний текст джерелаSnæbjörnsson, Jónas Thór. "Full- and Model Scale Study of Wind Effects on a medium-rise Building in a built up Area." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Fakultet for ingeniørvitenskap og teknologi, 2002. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-173.
Повний текст джерелаHolmgren, Anna. "Brandskydd av stålprofiler." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1260.
Повний текст джерелаDenna rapport är resultatet av en studie kring kostnader för brandskydd av stålprofiler.
Rapporten inleds med en beskrivning av problemet att hitta den ekonomiskt bästa lösningen för brandskydd av stålpelare i en konstruktion med specificerad brandklass. Därefter följer en allmän del om brandskydd och en övergripande redogörelse för gällande lagar och föreskrifter som har betydelse för brandskyddsdimensioneringen. De laster och förutsättningar som ligger till grund för valet av pelardimensioner beskrivs och valda dimensioner redovisas i tabell. Därefter följer en beskrivning av de brandskyddsmaterial som studerats: inklädnad med gips-, fibersilikat-, och stenullsskivor samt brandskyddsmålning. I resultatet ingår en sammanställning i tabellform. Till rapporten hör ett antal bilagor med materialspecifika tabeller samt resultat från gjorda datorberäkningar.
This report is the result of a study on costs for fire protection of steel sections.
The report starts with a description of the problem to find the most economic way to protect a steel column in a construktion with a specified fire classification. After this follows a general part about fire protection and then a comprehensive account of valid laws and regulations of importence for the dimensioning of the fire protect. Loads and other conditions that underlies the choice of column dimensions is described and chosen dimensions are shown in a table. Then follows a description of the materials for fire protection which is concidered: cladding with plaster-, fibre silicate-, and stone wool XXX and XXXpaint. The result includes a compilation table. To the report comes a number of appendix with specific material tables and results from the computer calculations.
Gustafsson, Lena. "Rostskyddssystem för stålprofiler : Tekniska egenskaper, ekonomi och miljöfrågor." Thesis, Linköping University, Department of Science and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2601.
Повний текст джерелаNästan alla stålkonstruktioner måste rostskyddas. Undantaget är de som står inomhus i torr luft. Ett rostskydd kan utföras på flera olika sätt, men de vanligaste är att stålet målas med rostskyddsfärg eller att det varmförzinkas. Innan detta kan utföras måste stålet förbehandlas. Det är viktigt att den utförs noggrant för annars kan kvarvarande föroreningar börja rosta under färg- eller zinkskiktet. Rapporten behandlar de ovan nämnda metoderna, dess egenskaper och miljöpåverkan samt kostnader för systemen.
De rostskyddsmetoder som används har alla en negativ påverkan på naturen och hälsan. Hur stor den är beror på vilken sorts beläggning som används. Men man måste också tänka på att de faktiskt skyddar stålet och ökar livslängden och därigenom ger ett bättre resursutnyttjande.
Att säga hur mycket ett system kostar är inte helt lätt. Dessa kostnader beror på flera saker. Den största skillnaden gör mängden stål, men det beror även på till exempel tjocklek och typ av skikt.
Resultatet av studien är ett antal tabeller där konstruktörerna själva kan gå in och välja det system som, med tanke på ekonomi och miljöfrågor samt skiktets egenskaper, passar bäst till konstruktionen. Även ett snabbvalssystem har utvecklats där man väljer enbart efter en kategori, till exempel den billigaste eller den starkaste.
Atrushi, Dawood Soliman. "Tensile and Compressive Creep of Young Concrete : Testing and Modelling." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18.
Повний текст джерелаThe thesis deals with experimental and numerical modelling to characterize early age tensile and compressive creep and its associated stress relaxation - which are very important properties in stress simulation of early age concrete. For this purpose a comprehensive work was carried out involving construction of a new tensile creep test equipment and development of test procedures to generate basic experimental data.
The experimental program is subdivided into four series. Each of the series involves one varying parameter, which is relevant to the time-dependent behaviour of early age HPC. Most of the tests are repeated to check the reproducibility of the test results. The reproducibility of the test results for the BASE concretes confirmed that the experimental setup is reliable, and that it can be used to determine tensile creep of concrete at early ages.
An extensive test program has been performed on HPC, with w/b = 0.40. The primary parameters studied were concrete ages at loading (1, 2, 3, 4, 6 and 8 days), stress/strength levels (20-80%), and temperature levels (20, 34, 40, 57 and 60 oC) in addition to the effect of silica fume (0-15%) on tensile creep. The testing apparatus was new and significant efforts were devoted to develop reliable procedures in terms of accuracy and reproducibility. In parallel, compressive creep tests were conducted on a separate testing apparatus, and the results are compared to tensile creep behaviour.
It was found that the instantaneous deformation under tension is smaller than under compression, and that the corresponding creep curves also are different. Creep in tension is found to be lower initially, but an almost linear rate is soon established which is much higher than in compression. The consequence is greater creep magnitude and thus greater creep coefficient in tension than in compression. The tests on non-linearity showed that the proportionality limit between stress and sealed tensile creep strain is about 60% of the strength. Creep tests under isothermal temperatures showed that, as for compressive creep, the sealed tensile creep accelerates for temperatures higher than 20 oC. In addition, the maturity principle describes this effect reasonably well, for the tested loading ages of about 3 days.
The relatively large amount of experimental data, available in this study, has been used to investigate mathematical models. Comprehensive test results from the TSTM apparatus are analyzed with respect to creep and relaxation, where the effect of temperature on creep and relaxation is emphasized. Simulations of self-induced stresses are performed using the creep model denoted the Double Power Law (DPL). As solution method, the theory of linear viscoelasticity with aging is used. The model (M-DPL) is modified to take into account the effect of irrecoverable creep.
For increasing temperatures during the hardening phase, the transient creep, which takes place during heating is taken into account by an additional creep term. Its contribution to stress relaxation was found to be up to 10%. This transient creep term is considered to be irrecoverable during the subsequent temperature decrease. The modified model captures the various characteristics of sealed creep and describes the tensile behaviour at early ages more accurately than the original Double Power Law.
The effect of relaxation is found to be relatively large and significant in development of selfinduced stresses. Under isothermal temperature of 20 oC, the relaxation increases to about 40% of the fictive elastic stresses after 3 days and remains about constant after that. On the other hand, presentation of relaxation under realistic temperature histories is much more complicated, because the stresses change from compression to tension. This might also lead to increased tensile stresses because compressive creep reduces compressive stresses, but increases the subsequent tensile stresses. Underestimation of creep in this early period will lead to underestimation of the cracking risk.
Creep development at very early ages has an important effect in determination of the creep model parameters. After an evaluation of the test results using six loading ages (1, 2, 3, 4, 6 and 8 days) it was concluded that an optimal test program should include at least 3 loading ages, in which the loading ages 1 and 2 must be included.
Furthermore, the test results indicate that partial replacement of cement with silica fume (5-15%) increases the sealed tensile creep. However, the reference concrete without silica fume dose not fit to this systematic pattern.