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  4. The BIM2LCA approach: An industry foundation classes (IFC)-based interface to integrate life cycle assessment in integral planning
 
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2020
Journal Article
Title

The BIM2LCA approach: An industry foundation classes (IFC)-based interface to integrate life cycle assessment in integral planning

Abstract
An increasing degree of digitalization in construction planning offers significant potential for building life cycle assessment (LCA) to reduce access barriers, as well as the assessment effort itself. To realize the widespread application of LCA tools and their potential to effectively minimize life cycle impacts, an open approach is required that allows for flexible application of comprehensive LCA studies and early integration in planning processes. The authors present an approach for LCA integration in all phases of digital planning which aims at a DGNB (Deutsche Gesellschaft für nachhaltiges Bauen) certification based on the open Building Information Modeling (BIM) standard Industry Foundation Classes (IFC). The approach takes into account varying levels of development and resulting data availability during integral planning phases, as well as resulting LCA application contexts. It goes beyond existing strategies and allows one to consider both BIM and LCA software through a workflow based on a single data format. The assessment framework is operationalized through standardized interface development and technical realization following the information delivery manual (IDM) process standardized for IFC interfaces. The Extensible Markup Language (XML) schema, as a specific implementation for certification, provides the target system for LCA data requirements and is generalized to a planning phase specific IDM base table. The technical realization based on respective model view definitions and distributed data suggests a pathway to the standardization of LCA-IFC integration based on an open approach. The overall approach exemplarily applies to the ""LERNZENTRUM"" at the Karlsruhe Institute of Technology (KIT) campus. We conclude that an open BIM approach for LCA integration in model-based planning is feasible, but requires several adjustments in IFC, LCA, and planning practice. Adding a lifecycle element to the IFC to connect BIM and LCA provides comprehensive feedback for informed decision making based on environmental impact.
Author(s)
Horn, Rafael  
Fraunhofer-Institut für Bauphysik IBP  
Ebertshäuser, Sebastian
Karlsruher Institut für Technologie, Inst. Building Lifecycle Management
Di Bari, Roberta  
Fraunhofer-Institut für Bauphysik IBP  
Jorgji, Olivia  
Fraunhofer-Institut für Bauphysik IBP  
Traunspurger, René
German Sustainable Building Council, DGNB e.V.
Both, Petra von
Karlsruher Institut für Technologie, Inst. Building Lifecycle Management
Journal
Sustainability  
Project(s)
BIM2LCA4IP
Funder
Bundesministerium für Wirtschaft und Energie BMWi (Deutschland)  
Deutsche Forschungsgemeinschaft DFG  
Open Access
File(s)
Download (6.19 MB)
Rights
CC BY 4.0: Creative Commons Attribution
DOI
10.24406/publica-r-264986
10.3390/su12166558
Language
English
Fraunhofer-Institut für Bauphysik IBP  
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