Integrating complete disassembly planning with deconstructability assessment to facilitate designing deconstructable buildings

Abstract

ABSTRACT As one of the most resource-intensive sectors, the building industry has a significant role in environmental degradation and global emissions. Deconstruction can highly enhance resource efficiency by closing materials loops and enabling a circular economy model as a sustainable and environmentally friendly paradigm. This study presents an integrated method for complete disassembly planning and deconstructability assessment (DA) as a novel strategy to facilitate designing deconstructable buildings. The asynchronous parallel disassembly planning (aPDP) approach from the manufacturing industry is utilized to develop a complete disassembly planning method for building assemblies. This is the first study on the complete disassembly planning of buildings in which both sequential and parallel modes are supported. Moreover, a new DA approach based on the environmental impact (i.e. the global warming potential) of components is devised to show the deconstructability percentage. The method can create valid and feasible complete disassembly plans, and the higher complexity does not decrease its performance. Besides, the DA approach is able to raise environmental awareness and draw more attention to the profound implications of the material selection procedure. The method's provided information can assist decision-makers in designing buildings with a higher deconstructability degree by enriching the deconstruction plan, reducing the lack of disassembly information, and enhancing decisions’ quality in DA.