Salvaging building materials in a circular economy: A BIM-based whole-life performance estimator
Salvaging building materials in a circular economy: A BIM-based whole-life performance estimator
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DOI：
10.1016/j.resconrec.2017.10.026
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发表时间：
2018-02-01
影响因子：
13.2
通讯作者：
Bello, Sururah A.
中科院分区：
文献类型：
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作者：
Akanbi, Lukman A.;Oyedele, Lukumon O.;Bello, Sururah A.
本研究旨在发展一套以BIM为基础的全寿命性能评估系统，以评估建筑物结构构件在设计阶段的抢救性能。对现有文献进行了回顾，以确定影响建筑物结构部件在其使用寿命期间的救助性能的因素。此后，采用数学建模方法，使用已识别的因素和制造产品的威布尔可靠性分布的原理/概念来开发BWPE。该模型在建筑信息模型（BIM）环境中实现，并使用案例研究设计进行了测试。因此，生成了案例研究建筑物的全寿命抢救性能曲线。研究结果表明，采用钢结构、可拆卸连接和预制组件的建筑设计产生的可回收材料大多可重复使用。该研究表明，BWPE是一种客观的手段，用于确定建筑物中有多少可回收材料在其使用寿命结束时可重复使用和回收。因此，BWPE将为建筑师和设计师提供决策支持机制，以分析设计决策对建筑物长期救助性能的影响。当建筑物的使用寿命结束时，拆卸工程师和顾问进行拆卸前审计也将是有用的。
The aim of this study is to develop a BIM-based Whole-life Performance Estimator (BWPE) for appraising the salvage performance of structural components of buildings right from the design stage. A review of the extant literature was carried out to identify factors that influence salvage performance of structural components of buildings during their useful life. Thereafter, a mathematical modelling approach was adopted to develop BWPE using the identified factors and principle/concept of Weibull reliability distribution for manufactured products. The model was implemented in Building Information Modelling (BIM) environment and it was tested using case study design. Accordingly, the whole-life salvage performance profiles of the case study building were generated. The results show that building design with steel structure, demountable connections, and prefabricated assemblies produce recoverable materials that are mostly reusable. The study reveals that BWPE is an objective means for determining how much of recoverable materials from buildings are reusable and recyclable at the end of its useful life. BWPE will therefore provide a decision support mechanism for the architects and designers to analyse the implication, of designs decision on the salvage performance of buildings over time. It will also be useful to the demolition engineers and consultants to generate pre-demolition audit when the building gets to end of its life.