A design methodology to reduce the embodied carbon of concrete buildings using thin-shell floors
A design methodology to reduce the embodied carbon of concrete buildings using thin-shell floors
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一种减少使用薄壳楼板的混凝土建筑隐含碳的设计方法
DOI：
10.1016/j.engstruct.2020.110195
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发表时间：
2020
影响因子：
5.5
通讯作者：
Hawkins W
中科院分区：
文献类型：
--
作者：
Hawkins W
本文探讨了薄混凝土壳作为楼板和梁的低碳替代品的潜力，楼板和梁通常构成多层建筑中的大部分结构材料。提出了一种简单实用的系统，其特点是预制纺织钢筋混凝土壳体与预应力钢拉结网络。包括非结构性填充以提供水平顶表面。建立在以前的实验和理论工作，一个完整的设计方法。然后，这是用来探索拟议的系统的结构行为，完善其设计，并评估潜在的碳节约。与相同的结构性能的平板相比，显着的体现碳减少（53-58%）被证明跨越6-18米。自重也减少了43-53%，这将节省额外的材料在列和基础。所提出的结构的简单性和设计方法的保守性表明，未来的改进可以进一步节省碳排放，这些结果表明，通过创新的结构设计可以实现相当大的碳减排，而薄壳地板是实现这一目标的一种实用手段。
This paper explores the potential of thin concrete shells as low-carbon alternatives to floor slabs and beams, which typically make up the majority of structural material in multi-storey buildings. A simple and practical system is proposed, featuring pre-cast textile reinforced concrete shells with a network of prestressed steel tension ties. A non-structural fill is included to provide a level top surface. Building on previous experimental and theoretical work, a complete design methodology is presented. This is then used to explore the structural behaviour of the proposed system, refine its design, and evaluate potential carbon savings.Compared to flat slabs of equivalent structural performance, significant embodied carbon reductions (53–58%) are demonstrated across spans of 6–18 m. Self-weight reductions of 43–53% are also achieved, which would save additional material in columns and foundations. The simplicity of the proposed structure, and conservatism of the design methodology, indicate that further savings could be made with future refinements.These results show that considerable embodied carbon reductions are possible through innovative structural design, and that thin-shell floors are a practical means of achieving this.
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影响因子：
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DOI：
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