Environmental benefits arising from demountable steel-concrete composite floor systems in buildings
Environmental benefits arising from demountable steel-concrete composite floor systems in buildings
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DOI：
10.1016/j.resconrec.2018.10.014
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发表时间：
2019-02-01
影响因子：
13.2
通讯作者：
Castiglioni, Carlo Andrea
中科院分区：
文献类型：
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作者：
Brambilla, Giovanni;Lavagna, Monica;Castiglioni, Carlo Andrea
本文介绍了不同的钢-混凝土组合楼板系统所产生的环境影响的评估和量化。特别是，一个可拆卸的组合楼盖系统，使用预拉伸高强度摩擦夹紧螺栓作为剪力连接件进行了比较与三个传统的组合楼盖系统，使用焊接剪力钉作为剪力连接件。第一种类型促进结构构件的拆卸和再利用的寿命结束情景，而传统系统则与建筑材料废物管理的现行做法有关，即拆除和回收。为了分析这些不同的结构系统和相关的情况下，比较生命周期评估调查两个整个生命周期的材料。基于对几种影响类别的评价，在所有考虑的结构解决方案中，可拆卸复合地板系统的建筑被确定为最环保的解决方案，并且对每个影响类别的排放和资源节约进行量化。
This paper presents an assessment and quantification of the environmental impacts arising from different steel concrete composite floor systems. In particular, a demountable composite floor system using pretensioned high strength friction grip bolts as shear connectors is compared with three conventional composite floor systems that use welded shear studs as shear connectors. The first type promotes the end-of-life scenario of disassembly and reuse of structural elements, while the conventional systems are related to the current practices of waste management for building materials, i.e. demolition and recycling. To analyse these different structural systems and relative scenarios, a comparative Life Cycle Assessment investigating two entire life cycles of the materials is developed. Based on the evaluation of several impact categories, the building with demountable composite floor system is identified as the most environmentally friendly solution among all the considered structural solutions, and the saving of emissions and resources is quantified for each impact category.