Articles de revues : « The construction phase of buildings »

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Beheiry, Salwa Mamoun. « Benchmarking Sustainable Construction Technology ». Advanced Materials Research 347-353 (octobre 2011) : 2913–20. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2913.

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The objective of this research was to measure the use of recognized technology that promotes and supports sustainable development in building construction projects. This research hinged on the use of the Sustainable Construction Technology Index (SCTI) developed by Beheiry and Abu-Lebdeh in 2009 [1]. The SCTI was created in 2009 to investigate the use of technology in all phases of the building process from planning to occupancy. The index consists of four main sections that address the major phases of a typical construction project. These phases include the planning phase, the design phase, the construction phase and the occupancy phase. In the first stage of the research the SCTI was validated using expert feedback and weighted using trial data samples of close to 100 projects. In this stage of the research the SCTI was used to collect data from 208 building construction projects executed between 2005 and 2010 in the United Arab Emirates (UAE). The study brings to light that low and renewable energy use systems are spearheading the change process to more sustainable technologies in building construction projects in the UAE, followed by water preservation and reuse systems. The study also shows that the use of sustainable technology is still relatively low in residential buildings, compared to newer commercial buildings. The data show a clear trend upwards in the use of the technology albeit the total use is still low. This research provided a benchmark for current sustainable technology use in UAE project and a platform for further sustainable construction planning.

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Cao, Yu, Syahrul Nizam Kamaruzzaman et Nur Mardhiyah Aziz. « Green Building Construction : A Systematic Review of BIM Utilization ». Buildings 12, n^o 8 (10 août 2022) : 1205. http://dx.doi.org/10.3390/buildings12081205.

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As a multi-function method, Building Information Modeling (BIM) can assist construction organizations in improving their project’s quality, optimize collaboration efficiency, and reduce construction periods and expenditure. Given the distinguished contributions of BIM utilization, there is a trend that BIM has significant potential to be utilized in the construction phase of green buildings. Compared with traditional buildings, green buildings have more stringent requirements, including environmental protection, saving energy, and residents’ comfort. Although BIM is deemed an effective method to achieve the abovementioned requirements in the construction process of green buildings, there are few systematic reviews that explore the capabilities of BIM in the construction phase of green buildings. This has hindered the utilization of BIM in the construction of green buildings. To bridge this research gap and review the latest BIM capabilities, this study was developed to perform a systematic review of the BIM capabilities in the construction phase of green buildings. In this systematic review, the PRISMA protocol has been used as the primary procedure for article screening and review. The entire systematic review was performed from January 2022 to April 2022. In this process, 165 articles were included, reviewed, and discussed. Web of Science (WoS) and Scopus were adopted as the databases. Through this systematic review, it can be identified that BIM capabilities have significant advantages in project quality improvement, lifecycle data storage and management, collaboration optimization, planning, and schedule management optimization in the construction phase of green buildings. Through the discussion, it can be concluded that BIM utilization can be adopted from the pre-construction phase to the post-construction stage in the green building construction process. Besides these, the barriers to BIM utilization in the green building construction phase are also revealed in the discussion section, including the non-uniform data format, insufficient interactivity, ambiguous ownership, insufficient BIM training, and hesitation toward BIM adoption. Moreover, the challenges and future directions of BIM utilization in green building construction are identified. The findings of this study can facilitate construction personnel to be acquainted with BIM capabilities in the construction of green buildings to promote the utilization and optimization of BIM capabilities in the green building construction process.

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Myneni, Kranti kumar, et Rajan D. « IMPACT OF CIRCULAR CONSTRUCTION ON DEMOLITION WASTE MANAGEMENT IN THE INDIAN CONSTRUCTION INDUSTRY ». International Journal of Engineering Technologies and Management Research 8, n^o 1 (1 février 2021) : 12–24. http://dx.doi.org/10.29121/ijetmr.v8.i1.2021.846.

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In recent times due to the Indian economic growth, there is a surge in construction activities. This surge has led to an excess amount of demolition waste that is produced. According to the Building Material Promotion Council, India generates an estimated 150 million tons of C and D waste every year. Some existing initiatives and the significant stakeholders' involvement have created the demolition waste management systems essential in the building’s demolition phase. The research in the C and D and Awareness program for C and D waste that initiated has led to the implementation of some waste management systems in the building's demolition phase. In India, the amount of demolition waste produced is higher than the construction waste produced while constructing buildings. So, it is essential for the demolition waste mitigation plan in the building's demolition phase. The study aims to know circular construction and current demolition waste management performance in the Indian construction industry. Through literature review, demolition waste management systems that are carried out all around the world are collected. The current practices carried out by diﬀerent stakeholders practicing in India are known through a questionnaire survey. Data interpretation is made using the data collected in the literature review and the questionnaire survey. This research identified the signiﬁcant beneﬁts, barriers, and motivation factors to implement the waste management system, and proposing any necessary changes. Designer innovation and BIM deconstruction is considered as one of the barrier-breaking innovation in adopting the circular construction.

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Cha, Gi Wook, Won Hwa Hong et Jin Ho Kim. « A Study on CO₂ Emissions in End-of-Life Phase of Residential Buildings in Korea : Demolition, Transportation and Disposal of Building Materials ». Key Engineering Materials 730 (février 2017) : 457–62. http://dx.doi.org/10.4028/www.scientific.net/kem.730.457.

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Architecture and building industry have been made diversified efforts to create a construction environment that promotes resource recycling. Many studies have been done to better understand and reduce energy consumption and CO2 emissions throughout a building’s lifecycle. However, to promote sustainable development and a construction environment that facilitates resource recycling, more understanding and research is needed on energy consumption and CO2 emissions during the stage of dismantling a building. Noting that, this research investigates CO2 emissions in a building’s End-Of-Life (EOL) phase that includes dismantling of a building, transport and disposal of the waste generated in the course of dismantling residential buildings in Korea. According to the results of this study, CO2 emissions in a building’s EOL phase was 3,561kg CO2/100m2 for apartments, 3,184 kgCO2/100m2 for brick houses and 1,137 kg CO2/100m2 for wooden houses. The results showed that transport and disposal process of demolition waste accounts for 90% of all CO2 emissions in a building’s EOL phase. From this finding, it is necessary to have a proper, effective strategy for transport and disposal of demolition waste from dismantled buildings’ in order to reduce CO2 emissions during a building’s EOL phase.

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Li, Junjie, Shuai Lu, Wanlin Wang, Jie Huang, Xinxing Chen et Jiayi Wang. « Design and Climate-Responsiveness Performance Evaluation of an Integrated Envelope for Modular Prefabricated Buildings ». Advances in Materials Science and Engineering 2018 (7 août 2018) : 1–14. http://dx.doi.org/10.1155/2018/8082368.

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Modular prefabricated buildings effectively improve the efficiency and quality of building design and construction and represent an important trend in the development of building industrialization. However, there are still many deficiencies in the design and technology of existing systems, especially in terms of the integration of architectural performance defects that cannot respond to occupants’ comfort, flexibility, and energy-saving requirements throughout the building’s life cycle. This research takes modular prefabricated steel structural systems as its research object and sets the detailed design of an integrated modular envelope system as the core content. First, the researcher chose two types of thermal insulation materials, high insulation panels and aerogel blankets, in order to study the construction details of integrated building envelopes for modular prefabricated buildings. Focusing on the weakest heat point, the thermal bridge at the modular connection point, this work used construction design and research to build an experimental building and full-scale model; the goal was to explore and verify the feasibility of the climate-responsive construction technique called “reverse install.” Second, as a response to climate change, building facades were dynamically adjusted by employing different modular building envelope units such as sunshades, preheaters, ventilation, air filtration, pest control, and other functional requirements in order to improve the building’s climate adaptability. Finally, based on the above structural design and research, this study verified the actual measurements and simulation, as well as the sustainability performance of the structure during the operational phase, and provided feedback on the design. The results highlight the environmental performance of each construction detail and optimized possibilities for an integrated envelope design for modular prefabricated buildings during both the design and renovation phases.

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Wu, Rui, Huan Du et Qi Wu. « Research on Value-Engineering-Based Construction Costs of Energy-Saving Buildings ». Applied Mechanics and Materials 744-746 (mars 2015) : 2310–13. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.2310.

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With the energy crisis being ever increasingly serious, energy-saving buildings have become a breakthrough for the development of the construction industry. Firstly, this article analyzes the current status of building energy saving in mainland China, and elaborates the necessity of building energy saving in the viewpoint of the entire lifecycle cost by using the value engineering principle. Secondly, this article analyzes the incremental cost of energy-saving buildings and describes the components of the incremental cost. Thirdly, this article analyzes in detail the impact of the incremental cost in the construction phase of buildings by illustrating examples. Finally, this article lists measures and suggestions for cost management to achieve the optimal economic benefits for the entire lifecycle with a minimum incremental cost in the construction phase, resulting in smooth development of energy saving buildings.

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Roswag-Klinge, E., E. Neumann et A. Klinge. « Climate impacts of wood/ timber as a building material – investigated on three urban quarters in Germany (CIW) ». IOP Conference Series : Earth and Environmental Science 1078, n^o 1 (1 septembre 2022) : 012029. http://dx.doi.org/10.1088/1755-1315/1078/1/012029.

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Abstract Due to the current discussion about the shortage of resources and the excess of greenhouse gas emissions, timber construction is experiencing a renaissance in Germany. As a renewable resource, wood can replace emission-intensive building materials and, if left long-term in the construction, lead to negative balances, i.e. carbon sinks at the construction phase (LCA phase A1-A3). This means that more carbon could be stored in the construction than is emitted during production. This study analyses different buildings ranging from row houses to high-rise buildings that are envisioned as envisioned as envisioned as envisioned as envisioned as timber construction of three so called timber-quarters (Holzbauquartiere). For all buildings, the current design/ construction, a conventional as well as a timber+ construction (maximum possible timber use in construction) variant have been evaluated. The calculations were conducted with eLCA the LCA tool of the Bewertungssystem Nachhaltiges Bauen (BNB) (German Green Building System) and the data sets of the German ÖKOBAUDAT[11]. The results are given per m2 gross floor area per user, per building and per neighbourhood. The investigations show the importance of the material choice regarding the climate gas emissions of the buildings and how large the proportion of wood must be in order to design the building envelope (KG 300 (cost group for architectural elements) in a climate gas neutral way. Planning parameters for a climate gas neutral design and construction of buildings are derived from the analysis.

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Bragança, Luís, Sergio Russo Ermolli et Heli Koukkari. « Phase Changing Materials in Buildings ». International Journal of Sustainable Building Technology and Urban Development 2, n^o 1 (mars 2011) : 43–51. http://dx.doi.org/10.5390/susb.2011.2.1.043.

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Nikolić Topalović, Marina, Milenko Stanković, Goran Ćirović et Dragan Pamučar. « Comparison of the Applied Measures on the Simulated Scenarios for the Sustainable Building Construction through Carbon Footprint Emissions—Case Study of Building Construction in Serbia ». Sustainability 10, n^o 12 (10 décembre 2018) : 4688. http://dx.doi.org/10.3390/su10124688.

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Research was conducted to indicate the impact of the increased flow of thermal insulation materials on the environment due to the implementation of the new regulations on energy efficiency of buildings. The regulations on energy efficiency of buildings in Serbia came into force on 30 September 2012 for all new buildings as well as for buildings in the process of rehabilitation and reconstruction. For that purpose, the carbon footprint was analyzed in three scenarios (BS, S1 and S2) for which the quantities of construction materials and processes were calculated. The life cycle analysis (LCA), which is the basis for analyzing the carbon life cycle (LCACO2), was used in this study. Carbon Calculator was used for measuring carbon footprint, and URSA program to calculate the operational energy. This study was done in two phases. In Phase 1, the embodied carbon was measured to evaluate short-term effects of the implementation of the new regulations. Phase 2 included the first 10 years of building exploitation to evaluate the long-term effects of the new regulations. The analysis was done for the period of 10 years, further adjustments to the regulations regarding energy efficiency of the buildings in Serbia are expected in accordance with EU directives. The study shows that, in the short-run, Scenario BS has the lowest embodied carbon. In the long-run, after 3.66 years, Scenario S2 becomes a better option regarding the impact on the environment. The study reveals the necessity to include embodied carbon together with the whole life carbon to estimation the impact of a building on the environment.

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Calì, Alfredo, Poliana Dias de Moraes et Ângela Do Valle. « UNDERSTANDING THE STRUCTURAL BEHAVIOR OF HISTORICAL BUILDINGS THROUGH ITS CONSTRUCTIVE PHASE EVOLUTION USING H-BIM WORKFLOW ». JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 26, n^o 5 (15 mai 2020) : 421–34. http://dx.doi.org/10.3846/jcem.2020.12612.

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Knowledge is fundamental to understand the key characteristics of a heritage building. Furthermore, constructive analysis of a historical construction is central to research into its structural behavior. This work aims to increase the knowledge level of a historical construction by the understanding of the constructive evolution through Historical-Building Information Modeling (H-BIM) workflow. The research proposes a multidisciplinary approach applicable to the field of historical constructions, which is resumed in the followings steps: historical-critical analysis, material and soil characterization, data organization through H-BIM, qualitative static and dynamic structural analysis, validation of the results. The building of Quartel da Tropa – located in Florianópolis, Brazil – is used as a practical case study to show how the proposed research can be adapted to historical buildings. Such an impressive eighteen-century masonry construction is the largest troop barracks among Brazilian fortifications. The proposed approach allows the creation of a structural model from the architectural model with fewer uncertainties and less simplification, improving the knowledge path of historical constructions and its structural assessment. The historical-critical analysis and the H-BIM allow managing and presenting of the information useful to the understanding of the constructive phase evolution of a historical building.

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İlerisoy, Zeynep Yeşim, et Mehmet Emin Tuna. « Effects of Height and Plan Geometry on the Costs of Tunnel Form Residential Buildings ». Periodica Polytechnica Architecture 49, n^o 1 (15 juin 2018) : 29–37. http://dx.doi.org/10.3311/ppar.12384.

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Tunnel form systems, which are industrialised construction systems developed in the last century, are widely used in reinforced concrete projects. Accurate determination of the costs of the building properties in the design phases of construction with the tunnel form system can lead to lower construction costs. The purpose of this study is to examine the cost variations resulting from changes in geometrical characteristics of buildings in the architectural design phase. The research was carried out on residential projects, which have the biggest share in the construction sector. Six housing projects with different plan geometries were designed, and these projects were examined for nine different numbers of floors. The study aims to reveal the extent to which both the plan shape and the number of floors influence the building costs. During the design phase, recommendations are given for reducing the building costs and finding the optimal form. It has been shown that tunnel form projects are not cost-effective in low-rise buildings and after a certain height. Furthermore, when different geometries are examined, the most economical cost is obtained in square form, and the cost increases as the two dimensions in plan plane move away from each other. As a result, the data obtained from this study will provide a better assessment of the relationship between building properties and unit cost in buildings constructed with tunnel form systems.

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Amaral, Rosaria E. C., Joel Brito, Matt Buckman, Elicia Drake, Esther Ilatova, Paige Rice, Carlos Sabbagh, Sergei Voronkin et Yewande S. Abraham. « Waste Management and Operational Energy for Sustainable Buildings : A Review ». Sustainability 12, n^o 13 (1 juillet 2020) : 5337. http://dx.doi.org/10.3390/su12135337.

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Construction and demolition waste account for a significant part of the solid waste taking up landfills on a global scale. A considerable portion of the waste generated by the construction industry has substantial residual value, and therefore waste management and sustainability principles and techniques should be applied. Buildings consume a lot of energy during the operations phase, but decisions made during design and construction impact building operations. This study reviews sustainable building practices to explore strategies that ensure minimal effects on economy, society, and the environment through efficient resource and waste management at different phases of a building life cycle. These practices include pollution reduction, reuse and recycling, energy consumption, embodied carbon, and water resource management.

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Hromada, Eduard, Stanislav Vitasek, Jakub Holcman, Renata Schneiderova Heralova et Tomas Krulicky. « Residential Construction with a Focus on Evaluation of the Life Cycle of Buildings ». Buildings 11, n^o 11 (7 novembre 2021) : 524. http://dx.doi.org/10.3390/buildings11110524.

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The article focuses on highlighting the role of life cycle costing (LCC) in the preparatory and implementation phase of residential projects. It involves the evaluation of several investment scenarios in the pre-investment phase, the choice between variants of the design of the entire building or its parts, and the choice of variants of structures and equipment with acceptable parameters. An innovative method of evaluating the life cycle of buildings is described in the article. This method was tested in selected residential projects realized by Skanska in the Czech Republic. Experience from construction practice shows that the choice of variants, constructions, or equipment of buildings only on the basis of the lowest acquisition costs (lowest bid prices) is wrong. The LCC calculation tool has been designed to model life cycle costs of individual variants of construction designs with different input parameters. It is possible to analyze the components or equipment that have the greatest impact on total life cycle costs. The article presents a tool that evaluates the long-term economic efficiency of the proposed residential buildings in terms of analysis of life cycle costs. The article will also expand the knowledge of the professional and general public about the importance of examining investment and operating costs already in the phase of construction preparation.

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Follini, Camilla, Valerio Magnago, Kilian Freitag, Michael Terzer, Carmen Marcher, Michael Riedl, Andrea Giusti et Dominik Tobias Matt. « BIM-Integrated Collaborative Robotics for Application in Building Construction and Maintenance ». Robotics 10, n^o 1 (25 décembre 2020) : 2. http://dx.doi.org/10.3390/robotics10010002.

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The application of robotics in construction is hindered by the site environment, which is unstructured and subject to change. At the same time, however, buildings and corresponding sites can be accurately described by Building Information Modeling (BIM). Such a model contains geometric and semantic data about the construction and operation phases of the building and it is already available at the design phase. We propose a method to leverage BIM for simple yet efficient deployment of robotic systems for construction and operation of buildings. With our proposed approach, BIM is used to provide the robot with a priori geometric and semantic information on the environment and to store information on the operation progress. We present two applications that verify the effectiveness of our proposed method. This system represents a step forward towards an easier application of robots in construction.

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Ribas, Domingos António, et Paulo Cachim. « Economic sustainability of buildings ». Engineering, Construction and Architectural Management 26, n^o 1 (18 février 2019) : 2–28. http://dx.doi.org/10.1108/ecam-03-2017-0048.

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Purpose The purpose of this paper is to present an innovative approach for the development of a methodology to systematically assess the economic performance and for the assessment of the economic sustainability of a building, through the calculation of an economic sustainability index, within the sustainability framework according to the rules defined in EN 16627. Design/methodology/approach The methodology follows the principle of modularity, where aspects and impacts that influence the economic performance of the building during the phases of its life cycle are assigned to levels. It presents a model based on the construction costs of the building. The methodology in centered in the before use phase and restricted to residential buildings. Findings Definition of a model for assessing the economic performance and calculation of an economic sustainability index. Research limitations/implications The methodology is focused only in the before use phase of the buildings, assuming they have the same functional equivalent. It can be expanded to include the other phases of the building life cycle. Practical implications The developed methodology will allow the selection of construction procedures, based on economic sustainability, contributing to more rational and support decisions. Social implications Contributing to a more sustainable society. Originality/value The European framework of EN 15643 and EN 16627 for the assessment of building sustainability is new and, as such, not implemented in most practical tools. Also, economic sustainability is not usually considered in detail in existing models. This paper presents a methodology following the framework and, simultaneously, possible to integrate in existing approaches.

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Rajpurohit, Dhruv, Amena I. Tamboli et Chinmay Jadhav Arpit Gohokar Sadanand Nanote Subham Dhote. « Significance of Phase Change Materials in Building Construction ». International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (30 juin 2018) : 1686–91. http://dx.doi.org/10.31142/ijtsrd14473.

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Su, Ying Ming, et Chung Yi Lan. « The Practical Application of Building Information Modeling in the Construction Phase of the Building Life Cycle ». Applied Mechanics and Materials 496-500 (janvier 2014) : 2523–28. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.2523.

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With inappropriate design or construction, the functions and service life of buildings begin to decline from the day of official use until they are demolished and resulting in extremely high cumulative cost throughout the building life cycle (BLC). However, the development of building information modeling (BIM) provides a solution for short BLCs and massive cumulative cost caused by errors occurring during the building design and construction phases. BIM is an innovative technique applicable to building design and construction management that has been vigorously developed in the construction industry. The development of BIM technology is now a global trend that can not be ignored, similar to 2D CAD before. BIM can be further developed into several aspects and applied during the construction phase, most important of all, enhance the overall building functionality and save operating cost throughout the BLC.

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Lukic, Predrag, Jasmina Tamburic et Dragoslav Stojic. « Energy efficiency of buildings with phase-change materials ». Facta universitatis - series : Architecture and Civil Engineering 10, n^o 3 (2012) : 343–52. http://dx.doi.org/10.2298/fuace1203343l.

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The construction of energy efficient buildings using innovative building materials such as phase change materials, in addition to improving indoor comfort, energy savings and costs, can be achieved by increasing their market value. Because of its ability to absorb and release energy at predictable temperatures, phase change materials are effective in controlling and maintaining the thermal environment in the building. The use of phase changing materials, materials stored latent energy storage is an effective form of heat.

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Badura, André, Birgit Mueller et Ivo Martinac. « Managing climate-change-induced overheating in non-residential buildings ». E3S Web of Conferences 172 (2020) : 02009. http://dx.doi.org/10.1051/e3sconf/202017202009.

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Large and rapid climatic changes can be uncomfortable and sometimes hazardous to humans. Buildings protect people from external climatic conditions, and also mitigate the impacts of external climate extremes through their design and construction, as well as with the help of dedicated building service and other technical systems. Active space conditioning accounts for more than 30 per cent of the overall final energy use in Germany. In the life cycle of a building, the construction phase (planning and construction) is the phase with the shortest duration. However, the quality applied during this phase has a significant impact on the resources required, as well as the overall building performance during the much longer operational phase. Once built, buildings are often unable to adapt to boundary conditions that were not considered in the original building design. Consequently, changing outdoor climate conditions can result in an uncomfortable indoor climate over the lifetime of a building. The aim of this study was to determine the effectiveness of flexible solutions for reducing winter heating loads and to reducing/avoiding summer cooling loads in nonresidential buildings in Germany. Various external shading scenarios for non-residential buildings were analysed using the IDA ICE indoor climate and energy simulation tool. Key simulation parameters included the orientation and location of the building, as well as the envelope structure. We investigated the impacts of solar shading on heat storage in the building mass and indoor climate and how different types of envelopes affect overall energy use. The result shows that the use of an adaptive building envelope allows a higher reduction of the total energy demand by 7 % to 15 % compared to an increase in insulation thickness only.

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Yang, Ang, Mingzhe Han, Qingcheng Zeng et Yuhui Sun. « Adopting Building Information Modeling (BIM) for the Development of Smart Buildings : A Review of Enabling Applications and Challenges ». Advances in Civil Engineering 2021 (9 mars 2021) : 1–26. http://dx.doi.org/10.1155/2021/8811476.

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The construction industry is undergoing a digital revolution due to the emergence of new technologies. A significant trend is that construction projects have been transformed and upgraded to the digital and smart mode in the whole life cycle. As a critical technology for the construction industry’s innovative development, building information modeling (BIM) is widely adopted in building design, construction, and operation. BIM has gained much interest in the research field of smart buildings in recent years. However, the dimensions of BIM and smart building applications have not been explored thoroughly so far. With an in-depth review of related journal articles published from 1996 to July 2020 on the BIM applications for smart buildings, this paper provides a comprehensive understanding and critical thinking about the nexus of BIM and smart buildings. This paper proposes a framework with three dimensions for the nexus of BIM application in smart buildings, including BIM attributes, project phases, and smart attributes. According to the three dimensions, this paper elaborates on (1) the advantages of BIM for achieving various smartness; (2) applications of BIM in multiple phases of smart buildings; and (3) smart building functions that be achieved with BIM. Based on the analysis of the literature in three dimensions, this paper presents the cross-analysis of the nexus of BIM and smart buildings. Lastly, this paper proposes the critical insights and implications about the research gaps and research trends: (1) enhancing the interoperability of BIM software; (2) further exploring the role of BIM in the operation and refurbishment phase of smart buildings; (3) paying attention to BIM technology in the field of transportation infrastructure; (4) clarifying the economic benefits of BIM projects; and (5) integrating BIM and other technologies.

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Kumar, S., S. Arun Prakash, V. Pandiyarajan, NB Geetha, V. Antony Aroul Raj et R. Velraj. « Effect of phase change material integration in clay hollow brick composite in building envelope for thermal management of energy efficient buildings ». Journal of Building Physics 43, n^o 4 (2 août 2019) : 351–64. http://dx.doi.org/10.1177/1744259119867462.

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The present trend in building research is to improve sustainability in building construction and operation. The development of new renewable technologies is essential to improve the sustainability and to reduce emissions. The incorporation of phase change materials in buildings is an effective way to reduce the room temperature fluctuations and cooling loads/heating loads. Although several works have been carried out in this field, a novel phase change material clay hollow-brick composite has been used in this work. This article discusses the research on investigating the thermal performance of phase change material integration in building walls. Two identical test rooms (3 m × 3 m × 3.65 m) were constructed to study the effect of phase change material integration in buildings. The experimental buildings were constructed for the warm and humid weather conditions of Chennai city, India. Phase change material integration in the building wall is beneficial for reduction of room temperature and provides passive cooling of the building. The temperature drop in a phase change material room compared with a non-phase change material room varies from 6°C to 2°C, during various months of the year. DESIGNBUILDER simulation was carried out for phase change material and non-phase change material buildings during the months of January, March, May, and July. The simulated room temperature variation follows the same pattern in these months.

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Carbonari, Giulia, Spyridon Stravoravdis et Christine Gausden. « Building Information Model for Existing Buildings for Facilities Management ». International Journal of 3-D Information Modeling 5, n^o 1 (janvier 2016) : 1–15. http://dx.doi.org/10.4018/ij3dim.2016010101.

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The use of Building information modelling for the design and construction phase of a building has been thoroughly looked into by researchers and practitioners and there is evidence to support that it is beneficial for reducing cost, time and improving communication. Yet the potential use of BIM for the operational and management phase (Facilities management), besides maintenance schedules and equipment information and location, is still not clearly identified. The UK Government, institutional clients and major private owners are now demanding for BIM for new construction and major refurbishment but given that 70-75% of the current UK building stock will still be in use in 2050, a significant part of the existing facilities will not have an information model till the next major refurbishment, creating a major gap in the built environment. This paper presents a new framework aimed at creating information models for facilities management requiring minimal BIM skills and discusses the impact that models created for the operational stage would have on the whole life cycle of a building.

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Scianna, Andrea, Giuseppe Fulvio Gaglio et Marcello La Guardia. « Structure Monitoring with BIM and IoT : The Case Study of a Bridge Beam Model ». ISPRS International Journal of Geo-Information 11, n^o 3 (4 mars 2022) : 173. http://dx.doi.org/10.3390/ijgi11030173.

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The diffusion of Building Information Modelling (BIM) as a reference methodology, applied to the world of construction, leads to important changes in the design and the management of big constructions and infrastructures. However, although the BIM approach is necessary for managing the entire life cycle of a construction, today, this methodology is still rarely adopted beyond the design phase. This represents a major flaw because the management of every phase of the life cycle of buildings needs accurate preliminary planning. Certainly, one of the most complex and important phases of the life cycle of a construction is the monitoring phase, which represents a fundamental aspect for the maintenance and the safe fruition of buildings or civil constructions. Considering this, the multidisciplinary approach of merging BIM methodology with real-time monitoring, using low-cost IoT (Internet of Things) sensors, seems to be an interesting topic to develop. In this paper, we will propose an example of a connection between an IoT system and a BIM model for monitoring the deflection of a bridge beam at the centerline using a schematic scale model reproduced in the laboratory and modelled in BIM. The developed system allows the real-time connection between the real model and its digital twin through the use of a relational database management system (RDBMS), to which the data detected by the sensor are transmitted, allowing the risk assessment of the real structure. This solution gives the possibility to remotely monitor, in real time, the behaviour of the structure visualised in the BIM model.

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Yeom, Dong-Jun, Hae-Mi Seo, Yoo-Jun Kim, Chung-Suk Cho et Youngsuk Kim. « DEVELOPMENT OF AN APPROXIMATE CONSTRUCTION DURATION PREDICTION MODEL DURING THE PROJECT PLANNING PHASE FOR GENERAL OFFICE BUILDINGS ». Journal of Civil Engineering and Management 24, n^o 3 (15 juin 2018) : 238–53. http://dx.doi.org/10.3846/jcem.2018.1646.

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Accurate prediction of the construction duration is imperative to the reliable cash flow analysis during the project planning phase when feasibility analysis is carried out. However, lack of information and frequent changes that occur as a result of a negotiation process between the owner and the designer in defining the project scope make it difficult to compute real-time construction duration. Domestic and foreign models for calculating the construction durations cannot be readily applied to computation of construction duration for general office buildings in Korea specifically during the project planning phase as there is a limit in its applicability due to numerous restrictions. Moreover, there are no preceding studies suggesting different computational approaches to predict the entire construction duration for office buildings with the approximate construction duration concept during planning phase. Therefore, based on the collected performance data, this study proposes a multiple linear regression model that facilitates reliable prediction of approximate construction duration for office buildings in the project planning phase. The model will allow the owner and other stakeholders to predict the real-time construction duration using the basic information on office buildings and to assess the construction durations incorporating frequent changes during the project planning phase.

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de Place Hansen, E. J. « Moisture related challenges in the Greenlandic building sector – results from a survey ». Journal of Physics : Conference Series 2069, n^o 1 (1 novembre 2021) : 012072. http://dx.doi.org/10.1088/1742-6596/2069/1/012072.

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Abstract The building industry is booming in the larger cities of Greenland; there is a need for housing, and the building stock is in urgent need of renovation, mainly due to the combination of extreme weather conditions and the lack of tradition to maintain buildings. The harsh climate with short summers and long periods of cold weather combined with occasionally high wind speed and precipitation makes it difficult to prevent moisture during the construction phase, causing high drying costs. These challenges highlight the need for guidelines on how to handle moisture especially in the construction phase, both at renovation or when erecting new buildings. To prepare the guidelines, a survey was carried out aimed at building professionals in Greenland. Focus was on identifying construction work challenged by the conditions in Greenland including geography and seasons. The feedback gave an overview on the main challenges and what kind of solutions that do or do not work, showing that handling of moisture in the construction phase is not the only problem. Further, the survey gave feedback on challenges related to specific technical solutions, e.g. crawl spaces, and what kind of information is missing in relation to moisture-safe construction in Greenland. As key-points, focus should be on project design, improved competences, handling of building materials and components at the building site, and explainable guidelines for specific solutions and building types.

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Petrovski, Aleksandar, Jelena Ivanovic-Sekularac et Nenad Sekularac. « Comparison of wooden and conventional houses sustainability : Increasing application of modified wood in R. of Macedonia ». Thermal Science 23, n^o 3 Part B (2019) : 1943–55. http://dx.doi.org/10.2298/tsci180705292p.

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The residential sector in Republic of North Macedonia, situated in south-east Europe, is responsible for the consumption of significant amounts of resources and for the production of large amount of emissions and waste. The increased application of wood products can substantially improve these conditions and contribute towards increasing the sustainability in the construction industry and the creation of sustainable homes. The contribution of this paper is the simulation of four different alternatives of residential buildings in the Republic of North Macedonia, evaluated in terms of energy performance and life-cycle assessment for the "cradle to gate" phase. The results of this study revealed that by replacing conventional concrete and masonry constructions with wooden constructions in low-rise family houses, the carbon emissions can be reduced up to 145%. The contribution of this paper is the simulation and analysis of the energy performance by using building performance simulation tools and life-cycle assessment of a residential building and its optimization through several models. The results give significant insight on the influence that the different construction materials have on the environment and buildings performance. Also, the research enables stimulation of the construction industry in utilizing wooden structures and delivering legislation that could increase their use. These actions would provide means for the development of sustainable buildings, neighborhoods and sustainable development of the Republic of North Macedonia.

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Manganelli, Benedetto, Pierluigi Morano, Francesco Tajani et Francesca Salvo. « Affordability Assessment of Energy-Efficient Building Construction in Italy ». Sustainability 11, n^o 1 (7 janvier 2019) : 249. http://dx.doi.org/10.3390/su11010249.

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This research tries to investigate, in the current condition of the Italian real estate market, the economic advantage of investing in energy retrofitting of existing buildings or in expenditure aimed at obtaining higher energy performances in the construction phase of new buildings. A cost-benefit analysis is developed referring to the construction industry entrepreneur. Firstly, the increase in value due to a different measurement of the energy performance of new buildings or newly redeveloped residential buildings is achieved through an innovative statistical approach. Energy performance is measured by taking as a reference the category of energy certification, as required by European legislation. In the estimate of the contribution, the measurement of energy performance, expressed on an ordinal scale, is treated as a categorical variable in the implementation of an iterative regression model, called the alternating least squares model. Afterwards, this contribution is compared to the cost of sustainable building, trying to define a percentage increase in cost compared to a minimum condition according to different and increasing levels of energy performance. In the developed case studies, the comparison between likely benefits and investment spending showed that the entrepreneur would have no convenience at an expense for energy retrofitting while obtaining a positive balance in the construction phase of new buildings. The financial advantage grows if the investment is aimed at achieving the best energy performance and in areas where the price level of the real estate market is lower. The finding can be used as a guide for construction industry investors to make decisions in energy-efficient residential buildings production or transformation.

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Besser Freitag, Alberto Eduardo, Rosley Anholon, Valmir Martins de Oliveira et Tomás Vivanco Larrain. « Integration of concepts about lean construction, sustainability and life cycle of buildings : a literature review ». Brazilian Journal of Operations & ; Production Management 14, n^o 4 (8 décembre 2017) : 486. http://dx.doi.org/10.14488/bjopm.2017.v14.n4.a5.

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The purpose of this study was the development of a theoretical framework integrating concepts of lean construction, sustainability and the life cycle of buildings. It was prepared using a systematic review of the literature through the Prisma method. Findings show that there is scarce scientific literature about lean construction contributions to activities related to the consumption phase of the life cycle of a building. Project and construction activities presented the highest number of lean construction contributions in the production phase. Research limitations are terms used in the search sentences and the choice of surveyed databases. The study contributes with knowledge that can be used by companies to adopt lean construction. It is also useful for researchers who can explore several research lines. The originality of this research is to view in a same table the interrelationship of concepts about lean construction, sustainability and the life cycle of buildings.

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Xue, Zhuyuan, Hongbo Liu, Qinxiao Zhang, Jingxin Wang, Jilin Fan et Xia Zhou. « The Impact Assessment of Campus Buildings Based on a Life Cycle Assessment–Life Cycle Cost Integrated Model ». Sustainability 12, n^o 1 (30 décembre 2019) : 294. http://dx.doi.org/10.3390/su12010294.

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The development of higher education has led to an increasing demand for campus buildings. To promote the sustainable development of campus buildings, this paper combines social willingness-to-pay (WTP) with the analytic hierarchy process (AHP) based on the characteristics of Chinese campus buildings to establish a life cycle assessment–life cycle cost (LCA–LCC) integrated model. Based on this model, this paper analyses the teaching building at a university in North China. The results show that the environmental impacts and economic costs are largest in the operation phase of the life cycle, mainly because of the use of electric energy. The environmental impacts and economic costs during the construction phase mainly come from the building material production process (BMPP); in this process, steel is the main source. Throughout the life cycle, abiotic depletion-fossil fuel potential (ADP fossil) and global warming potential (GWP) are the most prominent indexes. Further analysis shows that these two indexes should be the emphases of similar building assessments in the near future. Finally, this study offers suggestions for the proposed buildings and existing buildings based on the prominent problems found in the case study, with the aim to provide reference for the design, construction, and operation management of similar buildings.

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Zhong, Yuting, et Zesheng Qin. « Positioning of Prefabricated Building Components Based on BIM and Laser Image Scanning Technology in the Environment of Internet of Things ». Computational Intelligence and Neuroscience 2022 (23 juin 2022) : 1–7. http://dx.doi.org/10.1155/2022/5976935.

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In order to accurately locate the fabricated building components during assembly, the fabricated building components are monitored by laser scanning. At the same time, BIM Technology is proposed to carry out construction management in the construction process, realize safe site management and construction, reduce unnecessary mistakes of human operation, and improve construction quality. With the progress of computer technology, the emergence of the Internet of things has brought convenience to many fields. This research uses the application of phase ranging to carry out omnidirectional laser scanning on the fabricated building components, obtain the point cloud data, and use BIM Technology to simulate and analyze the building, establish the accurate positioning of building components, and prevent the offset phenomenon in the assembly process, so as to improve the construction quality and efficiency. In recent years, the integration of information technology into prefabricated buildings plays a vital role in the transformation and upgrading of China’s construction industry. At the same time, it will also raise the information management level of prefabricated buildings to a new level. In order to improve the quality of building construction, this paper proposes a positioning method of prefabricated building components based on BIM Technology and laser scanning. On this basis, a complete architecture and detailed process application are established, and the promotion policies conducive to the development of intelligent construction of prefabricated buildings in BIM are put forward.

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Xu, Xing Liang, Zeng Wei Sun et Liang Jia. « Monitoring Study of Guang'anmen Hospital Outpatient Building Foundation Pit Excavation ». Applied Mechanics and Materials 501-504 (janvier 2014) : 88–91. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.88.

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Monitoring is playing an important role on the building under construction (especially in deep foundation construction phase). By professional, scientific and timely monitoring, reliable monitoring data and information on security incidents that may occur can be provided timely. In this paper, Guang'anmen Hospital outpatient building foundation pit project was analyzed. The horizontal displacement at the top of supporting structure and settlement of the surrounding buildings were discussed. The results show that the horizontal displacement and the impact on surrounding buildings is within a permissible range, which entailed the safety of the foundation pit.

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Pochybełko, Karol, et Bożena Hoła. « Influence of selected factors on quality in residential construction ». Przegląd Budowlany 94, n^o 1-2 (26 février 2023) : 123–28. http://dx.doi.org/10.5604/01.3001.0016.2715.

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The article presents the results of research on the identificationof selected factors and the assessment of their impact onthe quality of residential buildings. Research and analyzes of theimpact factors were limited to the implementation phase, whichwas preceded by a detailed analysis of the completeness of thedesign documentation, the solutions adopted, the materials usedand the possibility of building the facility. The number and type ofdefects found during technical acceptance tests were adopted asa measure of the quality of residential buildings. The values of Spearman'srho correlation coefficients were calculated and the influenceof the identified factors on the quality was determ

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Anis Ahmed Khan, Muhammad Umer Zaheer, Sarosh Asghar et Syed Shujaa Safdar Gardezi. « Green Rating Assessment of a Residential Building in Pakistan Using LEED’s ». Open Journal of Science and Technology 3, n^o 2 (4 août 2020) : 126–39. http://dx.doi.org/10.31580/ojst.v3i2.1474.

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The paper presents the application of an International Green rating system LEED’s in a developing country. It focuses on significant environmental, energy, and water issues faced after construction. The rating conducted was on a multifamily residential building located in Askari 14, Rawalpindi, Pakistan. The building's construction was complete; hence The LEED v4 for Building Operations and Maintenance manual was used for performing Green rating. The rating works on the bases of point allotment scheme for building’s operational and environmental features such as energy use efficiency, water use efficiency, sustainable material usage, and more. The selected structure is constructed by implementing standard building techniques to which Pakistan adheres, which never inculcate aspects of environment and energy reduction. The cumulative score of all LEED’s components after rating is 40 out of 110, which grants it the rank of certified. Where the building performs poorly can be attributed to the fact that there were no LEED’s Accredited Professionals involved in the design phase of the case study. From the results, possible solutions are discussed in the paper to integrate the concept of sustainability in constructed buildings.

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Agarwal, Rachit, Pradeep Rawat, Devendra Rai, Humaira Athar et Srinivasarao Naik B. « Phase change materials for energy efficiency in building components – Overview ». Energy Environment and Storage 2, n^o 3 (24 septembre 2022) : 23–29. http://dx.doi.org/10.52924/adsz4322.

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Energy demand in the building particularly in summer during peak hours due to outdoor climate and lack of sufficient high thermal mass construction materials. Advanced materials are required to reduce the recurring energy demand of buildings. This peak-hour energy demand can be significantly reduced by using phase change materials (PCM). These PCMs may be incorporated into building components/ products in various ways. In this overview, the recent advances in the field of using different types of PCMs, parameters to be considered for building components, encapsulation of PCMs, and influence of PCMs on thermal and mechanical properties of construction materials are briefly discussed. Importantly, the behavior of MPCM in building components is concisely elaborated in an effective way.

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Parn, Erika A., David Edwards, Zainab Riaz, Fahad Mehmood et Joseph Lai. « Engineering-out hazards : digitising the management working safety in confined spaces ». Facilities 37, n^o 3/4 (28 février 2019) : 196–215. http://dx.doi.org/10.1108/f-03-2018-0039.

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PurposeThis paper aims to report upon the further development of a hybrid application programming interface (API) plug-in to building information modelling (BIM) entitled confined spaces safety monitoring system “CoSMoS”. Originally designed to engineer-out environmental hazards associated with working in a building’s confined spaces (during the construction phase of a building’s life-cycle), this second generation version is expanded upon to use archival records to proactively learn from data generated within a sensor network during the building’s operations and maintenance (O&M) phase of asset management (AM).Design/methodology/approachAn applied research methodological approach adopted used a two-phase process. In phase one, a conceptual model was created to provide a “blueprint map” to integrate BIM, sensor-based networks and data analytics (DA) into one integral system. A literature review provided the basis for the conceptual model’s further development. In phase two, the conceptual model was transposed into the prototype’s development environment as a proof of concept using primary data accrued from a large educational building.FindingsAn amalgamation of BIM, historical sensor data accrued and the application of DA demonstrate that CoSMoS provides an opportunity for the facilities management (FM) team to monitor pertinent environmental conditions and human behaviour within buildings that may impact upon occupant/worker safety. Although working in confined spaces is used to demonstrate the inherent potential of CoSMoS, the system could readily be expanded to analyse sensor-based network’s historical data of other areas of building performance, maintenance and safety.Originality/valueThis novel prototype has automated safety applications for FM during the asset lifecycle and maintenance phase of a building’s O&M phase of AM. Future work is proposed in several key areas, namely, develop instantaneous indicators of current safety performance within a building; and develop lead indicators of future safety performance of buildings.

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Kvaraia, Irakli, et Liana Giorgobiani. « Construction of Tbilisi Skyscrapers ». Works of Georgian Technical University, n^o 1(519) (29 mars 2021) : 232–44. http://dx.doi.org/10.36073/1512-0996-2021-1-232-244.

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The first tall building was built in 1938 in Tbilisi. This is the famous "11-storey house" on Heroes' Square. Until the end of the XX century, the tallest building in Tbilisi was the 22-storey hotel "Iveria". It was built in 1967, according to the decision by the former Soviet government that there should be at least one tall building in every capital of the Soviet republics. From the beginning of this century, Georgia completely switched to the construction of monolithic reinforced concrete and the number of high-rise buildings immediately increased both in Tbilisi and throughout the country. The first real skyscraper with a height of more than 100 meters was built in 2016 in Tbilisi. It was the 138-foot tower of Hotel Biltmore. After that, six more skyscrapers were built, which should be considered as the beginning of a new phase of Tbilisi urban planning.

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Almusaed, Amjad, Ibrahim Yitmen, Asaad Almsaad, İlknur Akiner et Muhammed Ernur Akiner. « Coherent Investigation on a Smart Kinetic Wooden Façade Based on Material Passport Concepts and Environmental Profile Inquiry ». Materials 14, n^o 14 (6 juillet 2021) : 3771. http://dx.doi.org/10.3390/ma14143771.

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Wood is one of the most fully renewable building materials, so wood instead of non-renewable materials produced from organic energy sources significantly reduces the environmental impact. Construction products can be replenished at the end of their working life and their elements and components deconstructed in a closed-loop manner to act as a material for potential construction. Materials passports (MPs) are instruments for incorporating circular economy principles (CEP) into structures. Material passports (MPs) consider all the building’s life cycle (BLC) steps to ensure that it can be reused and transformed several times. The number of reuse times and the operating life of the commodity greatly influence the environmental effects incorporated. For a new generation of buildings, the developing of an elegant kinetic wooden façade has become a necessity. It represents a multidisciplinary region with different climatic, fiscal, constructional materials, equipment, and programs, and ecology-influencing design processes and decisions. Based on an overview of the material’s environmental profile (MEP) and material passport (MP) definition in the design phase, this article attempts to establish and formulate an analytical analysis of the wood selection process used to produce a kinetic façade. The paper will analyze the importance of environmentally sustainable construction and a harmonious architectural environment to reduce harmful human intervention on the environment. It will examine the use of wooden panels on buildings’ façades as one solution to building impact on the environment. It will show the features of the formation of the wooden exterior of the building. It will also examine modern architecture that enters into a dialogue with the environment, giving unique flexibility to adapt a building. The study finds that new buildings can be easily created today. The concept of building materials passport and the environmental selection of the kinetic wooden façade can be incorporated into the building design process. This will improve the economic and environmental impact of the building on human life.

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Macillo, Vincenzo, Alessia Campiche, Sarmad Shakeel, Bianca Bucciero, Tatiana Pali, Maria Teresa Terracciano, Luigi Fiorino et Raffaele Landolfo. « Seismic Behaviour of Sheathed CFS Buildings : Shake-Table Testing and Numerical Modelling ». Key Engineering Materials 763 (février 2018) : 584–91. http://dx.doi.org/10.4028/www.scientific.net/kem.763.584.

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In the past, the effort of the research was focused on the characterization and modelling of isolated CFS members or parts of building, but this cannot be enough for innovative structure, in which the sheathing panels interact with the steel framing providing the bracing effects against seismic actions. Therefore, in order to evaluate the seismic behaviour of CFS buildings sheathed with gypsum panels, a wide experimental campaign was conducted at University of Naples “Federico II” in the framework of European research project ELISSA (Energy efficient LIghtweight-Sustainable-SAfe steel construction). In particular, a two-storey building was tested on the shaking-table, considering different construction phases. In the first phase, the building included only structural elements and dynamic identification tests were carried out, whereas, in the second phase, the building was completed with all finishing components and it was tested for dynamic identification and under natural ground motions. In addition, a numerical model able to simulate the dynamic/earthquake response of the whole building, considering also the effect of finishing materials, was developed in OpenSees environment. The present paper describes the main results of shake-table testing and numerical modelling.

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Paneru, Suman, Forough Foroutan Jahromi, Mohsen Hatami, Wilfred Roudebush et Idris Jeelani. « Integration of Emergy Analysis with Building Information Modeling ». Sustainability 13, n^o 14 (17 juillet 2021) : 7990. http://dx.doi.org/10.3390/su13147990.

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Traditional energy analysis in Building Information Modeling (BIM) only accounts for the energy requirements of building operations during a portion of the occupancy phase of the building’s life cycle and as such is unable to quantify the true impact of buildings on the environment. Specifically, the typical energy analysis in BIM does not account for the energy associated with resource formation, recycling, and demolition. Therefore, a comprehensive method is required to analyze the true environmental impact of buildings. Emergy analysis can offer a holistic approach to account for the environmental cost of activities involved in building construction and operation in all its life cycle phases from resource formation to demolition. As such, the integration of emergy analysis with BIM can result in the development of a holistic sustainability performance tool. Therefore, this study aimed at developing a comprehensive framework for the integration of emergy analysis with existing Building Information Modeling tools. The proposed framework was validated using a case study involving a test building element of 8’ × 8’ composite wall. The case study demonstrated the successful integration of emergy analysis with Revit®2021 using the inbuilt features of Revit and external tools such as MS Excel. The framework developed in this study will help in accurately determining the environmental cost of the buildings, which will help in selecting environment-friendly building materials and systems. In addition, the integration of emergy into BIM will allow a comparison of various built environment alternatives enabling designers to make sustainable decisions during the design phase.

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Abejón, Ricardo, Jara Laso, Marta Rodrigo, Israel Ruiz-Salmón, Mario Mañana, María Margallo et Rubén Aldaco. « Toward Energy Savings in Campus Buildings under a Life Cycle Thinking Approach ». Applied Sciences 10, n^o 20 (13 octobre 2020) : 7123. http://dx.doi.org/10.3390/app10207123.

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Recent studies have identified that buildings all over the world are great contributors to energy consumption and greenhouse gas emissions. The relationship between the building industry and environmental pollution is continuously discussed. The building industry includes many phases: extraction of raw materials, manufacturing, construction, use, and demolition. Each phase consumes a large amount of energy, and subsequent emissions are released. The life cycle energy assessment (LCEA) is a simplified version of the life cycle assessment (LCA) that focuses only on the evaluation of energy inputs for different phases of the life cycle. Operational energy is the energy required for day-to-day operation processes of buildings, such as heating, cooling and ventilation systems, lighting, as well as appliances. This use phase accounts for the largest portion of energy consumption of the life cycle of conventional buildings. In addition, energy performance certification of buildings is an obligation under current European legislation, which promotes efficient energy use, so it is necessary to ensure that the energy performance of the building is upgraded to meet minimum requirements. For this purpose, this work proposes the consideration of the energy impacts and material resources used in the operation phase of a building to calculate the contribution of these energy impacts as new variables for the energy performance certification. The application of this new approach to the evaluation of university buildings has been selected as a case study. From a methodological point of view, the approach relied on the energy consumption records obtained from energy and materials audit exercises with the aid of LCA databases. Taking into practice the proposed methodology, the primary energy impact and the related emissions were assessed to simplify the decision-making process for the energy certification of buildings. From the results obtained, it was concluded that the consumption of water and other consumable items (paper) are important from energy and environmental perspectives.

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Weerasinghe, Achini Shanika, et Thanuja Ramachandra. « Economic sustainability of green buildings : a comparative analysis of green vs non-green ». Built Environment Project and Asset Management 8, n^o 5 (12 novembre 2018) : 528–43. http://dx.doi.org/10.1108/bepam-10-2017-0105.

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Purpose In Sri Lanka, a limited number of buildings have been certified for incorporation of green features and the reasons are attributed to green building investors who continue to perceive that green buildings are expensive. Further, the green building investors fail to appreciate the subsequent benefits received by those buildings during the operational phase. Therefore, the purpose of this paper is to compare the life cycle cost (LCC) of green certified industrial manufacturing buildings with a similar form of the conventional buildings to establish the economic sustainability of green buildings. Design/methodology/approach The study involved a comparative case study analysis of two green buildings and a similar natured conventional building. The data required to perform the LCC analysis were extracted through documentary analysis. Findings The comparative analysis shows that the construction cost of a green industrial manufacturing building is 37 per cent higher than that of a similar natured conventional building while operation, maintenance and the end life cost of green buildings result in 28, 22 and 11 per cent savings, respectively. This results in an overall cost saving of 21 per cent in green buildings. Originality/value The current study provides an assessment of the total LCC of green industrial manufacturing buildings. In Sri Lanka, green industrial manufacturing buildings offer LCC saving of 21 per cent over its lifetime compared to similar natured conventional buildings. Thus, comparative analyses would enable green investors to make informed decisions before commissioning their investment in green facilities and thereby promote sustainable construction in Sri Lanka.

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Larsen, V. G., N. Tollin, V. Antoniucci, M. Birkved, P. A. Sattrup, T. Holmboe et G. Marella. « Filling the gaps Circular transition of affordable housing in Denmark ». IOP Conference Series : Earth and Environmental Science 1078, n^o 1 (1 septembre 2022) : 012078. http://dx.doi.org/10.1088/1755-1315/1078/1/012078.

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Abstract The building industry accounts for about 40% of all climate impacts, stemming from construction and renovation processes, use of buildings and demolition, disposal and recycling of buildings and building materials. The Danish Parliament passed a Danish Climate Act in 2020 to reduce greenhouse gas emissions by 70% by 2030, and an action plan in 2021 to create a Circular Economy (CE) in DK that can support the achievement of climate neutrality by 2050. About 20% of the Danish housing stock is affordable housing with approx. 560.000 affordable housing homes, inhabited by nearly 1 million out of 5.8 million people. In 2020 the Danish Government decided on the most significant overall housing agreement to set aside EUR 5,5 billion for ‘Green renovations’ and the building of new affordable housing. Building and renovating affordable housing in Denmark can thus become significant drivers for the Danish building industry’s transition to CE. Therefore, developing integrated tools and methodologies for life cycle thinking and CE assessment for the built environment is necessary. We have identified four significant gaps in this endeavour in a previously released literature review: For CE to succeed, it is necessary to take a circular view of the life cycle of buildings, which includes the service life phase, the reuse phase and the recycle phase; To achieve CE, it is necessary to continue research regarding the possibilities of integrating Life Cycle Assessment (LCA), Life Cycle Cost (LCC) and Social Life Cycle Assessment (S-LCA) into Life Cycle Sustainability Assessment (LCSA); S-LCA needs further maturation and development; It is imperative to focus upon operationalising LCSA for practitioners in all phases of a building’s life cycle. This paper aims to outline a strategy for analysing and discussing these four gaps and their interrelation in-depth and suggest an action research proposal to understand better how to bridge the gaps from a research perspective.

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Haddad, Assed N., Michele M. Sedrez, Mohammad K. Najjar, Ahmed W. A. Hammad et Carlos A. P. Soares. « Characterising Embodied Energy in Construction Activities Using Energy Inventory Life Cycle Assessment Method ». Buildings 13, n^o 1 (26 décembre 2022) : 52. http://dx.doi.org/10.3390/buildings13010052.

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Energy consumption of buildings accounts for almost a third of total energy use worldwide, leading to greater efforts in the industry and academia to reduce energy consumption in the built environment. This paper proposes an inventory method integrated within a Life Cycle Analysis (LCA) framework to characterise the energy consumption in the building phase of construction projects early in the construction design process. The proposed approach relies on Data Quality Indicators (DQI) and a Pedigree Matrix to quantify the building’s Direct Component of Initial Embodied Energy (DCIEE). In addition, a real case study involving various construction technologies representative of contemporary practice is adopted for validation purposes. Results indicate that the DCIEE of the case study building is 0.481 GJ/m2, which is slightly higher than that of other studies in the literature that report energy consumption per m2 of the construction project, mostly due to material transportation being a major contributor in the case study analysed.

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Sotsek, Nicolle Christine, Drielle Sanchez Leitner, Marcell Mariano Corrêa Maceno, Marcos Augusto Mendes Marques et Adriana de Paula Lacerda Santos. « Application of MEPLWF : method performance evaluation of the Light Wood Frame construction system ». Ambiente Construído 21, n^o 3 (septembre 2021) : 197–211. http://dx.doi.org/10.1590/s1678-86212021000300546.

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Abstract One of the 17 Sustainable Development Goals (SDG) set out in this agenda, objective 11 is related to the search for more sustainable cities and communities. This study wishes to contribute in this effort, presenting a method application to evaluate the performance of light wood frame buildings in Brazil. The structure of the method used, named MEPLWF, is based on five dimensions, which involve criteria and sub-criteria that analyse technical, social, environmental and economic requirements to evaluate buildings. It allows the examination of the operating results of buildings and the discovery of performance-related problems. The proposed method was applied in a real case study in southern Brazil, during the pre-occupation phase of the building. As a result, the performance identified in the building was 94%, which is a high performance. The application of the method in this case study diagnosed points that should be reviewed by the construction company, such as items related to fire protection and safety, flexibility and adaptability of the building system, environmental plan, energy efficiency and Costs.

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Cao, Yu, Syahrul Nizam Kamaruzzaman et Nur Mardhiyah Aziz. « Building Information Modeling (BIM) Capabilities in the Operation and Maintenance Phase of Green Buildings : A Systematic Review ». Buildings 12, n^o 6 (14 juin 2022) : 830. http://dx.doi.org/10.3390/buildings12060830.

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In recent years, green buildings have gradually become a worldwide trend. Compared with traditional buildings, green buildings have advanced requirements and standards in their operation and maintenance phase. In such a context, some studies proposed that building information modeling (BIM) is an effective method to improve green buildings’ operation and maintenance quality. The aim of this study is to perform a comprehensive review of the BIM capabilities in the operation and maintenance phase of green buildings through a systematic literature review. To achieve this aim, the PRISMA protocol was used to perform this systematic review. The whole systematic review was conducted between January 2022 and April 2022: 128 articles were included. In the process of study, Web of Science (WoS) and Scopus were adopted as bibliographic repositories. Through this study, it can be determined that BIM capabilities can be utilized in the facility management of the green building in the following aspects: safety and emergency management, maintenance and repair, energy management, security, retrofit and renovation, space management, and asset management. Secondly, these BIM capabilities were discussed, and the challenges and shortcomings of BIM capabilities in the operation and maintenance phase of green buildings were reviewed. Finally, a comprehensive overview of BIM capabilities in the facility management of green buildings was developed, and suggestions for future study were provided.

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Sami, Assala, Abbas M. Abd et Mohammed Mahmood. « Adopting BIM at Design Phase for Structural Buildings ». Diyala Journal of Engineering Sciences 14, n^o 3 (1 septembre 2021) : 23–35. http://dx.doi.org/10.24237/djes.2021.14303.

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In the construction industry, using of traditional methods to design and perform the works with participation of different disciplines by individual method make the design of structure more pruched to errors and mistakes and increase the possibility of generate the wastes due to need sometimes to re- work. In addition to the continuous change of designs, and this needed to updating documents and plans manually to keep pace with these changes, thus wasting time and effort, so this considers "inefficient" practice. Building Information Modeling (BIM) is an innovative technology that makes the design phase and construction industry more efficient to achieve the requirements of sustainability. A case study was taken to investigate the possibility of using BIM technology and structural analysis softwares (Robot and Etabs) in the structural design stage, where a model is modeled in the Revit software, and it is exported to Robot and Etabs softwares for the purpose of analysis and design, which showed close design results between these design softwares with a slight difference in the amount of rebar, about 4% more by using the Etabs software for all the structure. All the process performed from modelling to analysis and design then extracting schemas and quantity estimation for reinforcement and concrete was done in a short time and with satisfactory results.

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Sobotka, Anna, Kazimierz Linczowski et Aleksandra Radziejowska. « Substitution of Material Solutions in the Operating Phase of a Building ». Applied Sciences 11, n^o 6 (22 mars 2021) : 2812. http://dx.doi.org/10.3390/app11062812.

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During the operation of buildings, repairs, modernizations, adaptations, renovations, and reconstructions of parts of historic objects are performed. There is often the problem of using a different material or construction technology than was originally used, for a variety of reasons. For example, these are materials not currently manufactured, with necessary higher performance values (insulation, strength). The aim of the article was to analyze and evaluate the possibility of material substitution in repair works and to analyze the cause and effect analysis of its application in the context of different conditions. The article analyzes the causes and conditions of the substitution of materials in various stages of the exploitation phase of buildings, including historic buildings. A SWOT (Strengths, Weaknesses, Opportunities, Threats) matrix was developed for the phenomenon of material substitution during the operational phase. With aid from the DEMATEL (Decision Making Trial and Evaluation Laboratory) method, identification of cause–effect relationships regarding the issue of the possibility of applying the substitution of material solutions in building objects was carried out. The analysis carried out by the authors allows us to conclude that the use of substitution in the construction sector is justified and shows great opportunities in its implementation and development.

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Giordano, Roberto, Cristina Allione, Andrè Clos, Elena Montacchini et Silvia Tedesco. « The integrated design of building services by an equipped and eco-efficient module (MOTE2) ». VITRUVIO - International Journal of Architectural Technology and Sustainability 1, n^o 2 (20 décembre 2016) : 13. http://dx.doi.org/10.4995/vitruvio-ijats.2016.6795.

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The targets set out by European Directives concerning the energy savings in the construction sector refer both to building envelope and to its services. With regard to building services it is mandatory meeting requirements related to heating, cooling, lighting and ventilation.Building services take up a variable space in the buildings that cannot be considered anymore negligible and they would always be fully integrated into buildings.Equipped and Eco-efficient Technological Module (MOTE2) is a research project aimed at implementing the integration in a unique services cupboard of some building services: heating and cooling; domestic hot water; mechanical ventilation.The project was organized according to four main phases. In phase 1 a set of rules was defined matching requirements related to the energy efficiency to environmental building design standards. During the phase 2 six building models were studied in order to size the corresponding building services according to scenario analysis set down for existing buildings. In phase 3 the project was focused on designing the assembly among services.The cupboard design is like a Tetris® game through the planning of the best combination among services shape. Based on the drawings developed a first mock-up was built up and monitored. Finally, in phase 4 the paper deals with the MOTE2’s expected performances.Outlook and some conclusions point out the future steps of the research activities.

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Barták, Jiří. « INFLUENCE OF NEW CONSTRUCTION PROJECTS ON VINOHRADY TUNNELS ». Acta Polytechnica CTU Proceedings 32 (19 janvier 2022) : 1–6. http://dx.doi.org/10.14311/app.2022.32.0001.

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After demolition of the brutalist architectural style Transgas building in Vinohradská Street, Prague, (all buildings of which were located above the historic Vinohrady tunnels II and III), there will be built the Vinohradská Administration Centre with the addition of a building No. 345 called "Above the Museum". Both buildings have the foundation joint immediately above the lining of the existing tunnels. This paper describes the main phases of construction and the character and size of the deformation affecting the stone block lining of the tunnels.

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Djordjevic, Djordje, Biljana Avramovic, Dragoslav Stojic et Jasmina Tamburic. « Application of new active thermally enhanced insulation material (PCM) - STOREPET ». Facta universitatis - series : Architecture and Civil Engineering 12, n^o 3 (2014) : 221–32. http://dx.doi.org/10.2298/fuace1403221d.

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Lightweight constructions represent an economical alternative to traditional buildings, one of whose main drawbacks is the very high energy load needed to keep internal comfort conditions, as they are unable to curb rapid variations of temperature. When compared to heavier weight materials buildings, it is estimated that to maintain a thermally comfortable temperature range of 18-24?C, low weight materials use between 2 and 3 times the heating and cooling energy needed by a heavy weight material construction. The research concept is based upon the fact that outdoor/indoor heat exchanges (which play a significant part of lightweight buildings cooling and heating loads) can be potentially controlled by a new fiber insulation that possesses a thermally active heat storage capacity. During the day, when temperature rises, the peak loads can be largely absorbed by a PCM (Phase Change Material) - enhanced fiber insulation layer, only to be slowly discharged back to the environment later (during the night time, when outside temperature drops), without affecting the interior building energy balance, as it is aided by the presence of an standard low heat transfer fiber insulation layer. This approach will provide a much slower response of the building envelope to daily temperature fluctuations, helping in maintaining inside temperature in a comfortable range and thus avoiding the need for extra energy consumptions to accomplish it. Effective levels of indoor comfort will be also guaranteed by the well known fiber materials excellence, when it comes to reduce airborne noise transmission and its superior performance upon controlling the sound resonance in construction cavities. Development of such material is in final phase in frame of European FP7 project STOREPET (FP7-SME-2011-2, Proposal 286730). Project participant from SEE is Construction Cluster ?Dundjer? from Nis. Development and application of project results will be presented in this paper.

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