A BIM-based building circularity framework: assessment and visualization through 5R strategies

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Date

2023-1-26

Author

Yüksel, Pınar Ece

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Principles of the circular economy are applied to improve resource efficiency and reduce environmental impact. The purpose of this thesis is to create a BIM-based framework for building circularity assessment (BCA) that enables an analysis of R strategies such as Reusing, Recycling and Rethinking with graphically aided data representation and supports decision-making starting from the early stages to end of life. To learn more about building circularity indicators and assessment approaches, a literature review was conducted. Then, design alternatives of 5R strategies were developed and modeled into Revit. To analyze the building circularity of these alternatives, Environmental Product Declarations (EPD) were compiled into BIM enviroment with unit values. Before transferring EPD informations into BIM, these datasets are gathered into an Excel file with respect to parameters from BAMB templates such as Global Warming Potential, Deconstructability and Reusability to calculate building circularity. To integrate building circularity assessment to BIM, BCA framework was developed in Dynamo. The framework enables calculating building circularity and generating graphical results in Revit with respect to environmental effect, recoverability, and deconstructability. A case study and its 5R design alternatives are used to test the framework. The outcomes show that solutions that involve Rethinking has the best environmental impact and deconstructability performances, when Reducing owns the best recovery performance. As a result, Rethinking is the best alternative to provide most circular design, since many circular design principles, including sustainability technologies, design for deconstruction and adaptable design, are combined there. The methodology presented in this study makes the process of generating circularity indicators more comprehensible and gives guidance for making decisions regarding the application of R strategies.

Subject Keywords

Circular Economy, Building Circularity Assessment, Building Information Modelling, Sustainability, Multicriteria Approach

URI

https://hdl.handle.net/11511/102082

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

P. E. Yüksel, “A BIM-based building circularity framework: assessment and visualization through 5R strategies,” M.S. - Master of Science, Middle East Technical University, 2023.