The building sector is the largest consumer of energy in industrial countries. Saving energy in new buildings or building renovations can thus lead to significant global environmental impacts. In this endeavor, buildi...The building sector is the largest consumer of energy in industrial countries. Saving energy in new buildings or building renovations can thus lead to significant global environmental impacts. In this endeavor, building information <span>modeling (BIM) and building energy modeling (BEM) are two important to</span>ols to make the transition to net-zero energy buildings (NZEB). So far, little attention has been devoted, in the literature, to discuss the connection between BIM, BEM, and Life-cycle assessment (LCA), which is the main topic of this article. A literature review of 157 journal articles and conference proceedings published between 1990 and 2020 is presented. This review outlines knowledge gaps concerning BIM, BEM, and environmental impact assessment. It suggests that defining the process with the right technology (at the right time) would result in a more integrated design process (IDP) and bridge current gaps. The most efficient way to improve process and technology is related to the competences of the architects, engineers and constructors (AEC). The review also indicates that the IDP in the early design phases (EDP) is in need of improvement for architects and engineers, where a better connection between design phases, specific levels of development (LOD) and BIM tools is needed. <span>Competences, process and technology are the three main themes addressed in the review. Their relation to design phases and LOD is discussed. The aim </span>is to propose possible solutions to the current hinders in BIM-to-BEM (BIM2BEM) and BIM-for-LCA (BIM4LCA) integration.展开更多
Value generation is defined as meeting client requirements while minimizing waste. Researchers concur on the issues related to sequential design in handling client requirements, and suggest the use of an integrated de...Value generation is defined as meeting client requirements while minimizing waste. Researchers concur on the issues related to sequential design in handling client requirements, and suggest the use of an integrated design approach as an alternative. Little has been said, however, about the impact of adopting integrated design＇s work organization to traditional design practice, processes and tools, nor about the importance of breaking down socio-cognitive barriers related to mental model fragmentation between design professionals, clients and users. This may result in cognitive inertia, a major source of waste. The objective of this research is to develop and test the introduction of boundary objects, such as new technologies, to the context of integrated teams and organizations to break the cognitive inertia that hinders value generation. The research is conclusive about the effectiveness of using boundary objects to transform practices in construction. This research also contributes to a better understanding of the new purposes of construction projects by framing its context and process dimensions within a theoretical framework, as well as to the evolution of practices in construction - and of practices that could be applicable to other fields.展开更多
The construction industry is facing a gradual but important transformation toward more productivity and collaboration.In this framework,two major approaches are often cited in the literature as having the potential to...The construction industry is facing a gradual but important transformation toward more productivity and collaboration.In this framework,two major approaches are often cited in the literature as having the potential to improve the practices in the industry:Building Information Modeling(BIM)and Lean Construction.Several scientific studies have demonstrated the synergy of these two approaches and very recent research has reported positive results from the use of software applications as support for their implementation on construction sites.However,the stakes of such integration have been very little studied.This article presents the results of a research project conducted within a general contractor firm that decided to implement BIM and Last Planner System(LPS)on its construction sites.The research uses a four-stage action research approach,including the characterization of the research issue,the establishment of an action plan,its implementation and its evaluation.Compared to recent related studies,the research is less enthusiastic.While it highlights the need for new tools to improve production planning and control,it also points to a strong resistance to change by practitioners at the site.They emphasize the necessity for adequate pre-service training and the need for new resources that can work flill-time on the ongoing training of site teams.In addition,some limitations of the tool lead workers to believe that it can quickly become a factor that slows down their daily work rather than improving it.Based on the advice of professionals,the paper formulates some recommendations to the industry,the researchers and the software developers.展开更多
文摘The building sector is the largest consumer of energy in industrial countries. Saving energy in new buildings or building renovations can thus lead to significant global environmental impacts. In this endeavor, building information <span>modeling (BIM) and building energy modeling (BEM) are two important to</span>ols to make the transition to net-zero energy buildings (NZEB). So far, little attention has been devoted, in the literature, to discuss the connection between BIM, BEM, and Life-cycle assessment (LCA), which is the main topic of this article. A literature review of 157 journal articles and conference proceedings published between 1990 and 2020 is presented. This review outlines knowledge gaps concerning BIM, BEM, and environmental impact assessment. It suggests that defining the process with the right technology (at the right time) would result in a more integrated design process (IDP) and bridge current gaps. The most efficient way to improve process and technology is related to the competences of the architects, engineers and constructors (AEC). The review also indicates that the IDP in the early design phases (EDP) is in need of improvement for architects and engineers, where a better connection between design phases, specific levels of development (LOD) and BIM tools is needed. <span>Competences, process and technology are the three main themes addressed in the review. Their relation to design phases and LOD is discussed. The aim </span>is to propose possible solutions to the current hinders in BIM-to-BEM (BIM2BEM) and BIM-for-LCA (BIM4LCA) integration.
文摘Value generation is defined as meeting client requirements while minimizing waste. Researchers concur on the issues related to sequential design in handling client requirements, and suggest the use of an integrated design approach as an alternative. Little has been said, however, about the impact of adopting integrated design＇s work organization to traditional design practice, processes and tools, nor about the importance of breaking down socio-cognitive barriers related to mental model fragmentation between design professionals, clients and users. This may result in cognitive inertia, a major source of waste. The objective of this research is to develop and test the introduction of boundary objects, such as new technologies, to the context of integrated teams and organizations to break the cognitive inertia that hinders value generation. The research is conclusive about the effectiveness of using boundary objects to transform practices in construction. This research also contributes to a better understanding of the new purposes of construction projects by framing its context and process dimensions within a theoretical framework, as well as to the evolution of practices in construction - and of practices that could be applicable to other fields.
文摘The construction industry is facing a gradual but important transformation toward more productivity and collaboration.In this framework,two major approaches are often cited in the literature as having the potential to improve the practices in the industry:Building Information Modeling(BIM)and Lean Construction.Several scientific studies have demonstrated the synergy of these two approaches and very recent research has reported positive results from the use of software applications as support for their implementation on construction sites.However,the stakes of such integration have been very little studied.This article presents the results of a research project conducted within a general contractor firm that decided to implement BIM and Last Planner System(LPS)on its construction sites.The research uses a four-stage action research approach,including the characterization of the research issue,the establishment of an action plan,its implementation and its evaluation.Compared to recent related studies,the research is less enthusiastic.While it highlights the need for new tools to improve production planning and control,it also points to a strong resistance to change by practitioners at the site.They emphasize the necessity for adequate pre-service training and the need for new resources that can work flill-time on the ongoing training of site teams.In addition,some limitations of the tool lead workers to believe that it can quickly become a factor that slows down their daily work rather than improving it.Based on the advice of professionals,the paper formulates some recommendations to the industry,the researchers and the software developers.
