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Salvaging building materials in a circular economy: A BIM-based whole-life performance estimator

机译:在循环经济中救助建筑材料:基于BIM的全寿命性能估算器

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摘要

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.
机译:这项研究的目的是开发一种基于BIM的全寿命性能估算器(BWPE),以从设计阶段就评估建筑物结构部件的抢救性能。对现有文献进行了回顾,以找出影响建筑物结构构件在其使用寿命期间的打捞性能的因素。此后,采用一种数学建模方法来开发BWPE,使用确定的因素以及制成品的Weibull可靠性分布的原理/概念。该模型是在建筑物信息建模(BIM)环境中实现的,并已通过案例研究设计进行了测试。因此,生成了案例研究大楼的全生命救助性能概况。结果表明,具有钢结构,可拆卸连接和预制组件的建筑设计产生的可回收材料大部分都是可重复使用的。研究表明,BWPE是确定建筑物使用寿命中可回收利用的可回收材料的客观方法。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随时间推移的抢救性能的影响。当建筑物使用寿命到期时,这对于拆除工程师和顾问进行拆除前审核也将很有用。

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