后加混凝土-砌体组合墙体抗震性能试验研究

发布时间：2018-01-04 22:30

本文关键词：后加混凝土-砌体组合墙体抗震性能试验研究　出处：《建筑结构学报》2015年02期 　论文类型：期刊论文

【摘要】：根据某实际工程,设计1∶2缩尺的纵向和横向两种组合墙体试件进行低周反复荷载试验。针对后加混凝土构件-砌体组合墙体的承载力、延性、滞回特性、耗能能力及破坏模式、混凝土构件的应变和钢筋的应变发展过程等进行研究。结果表明:"拉结(剪切)钢筋+植筋"的连接节点具有可靠的连接性能,可以保证既有砌体结构与后加混凝土构件的协同工作;后加混凝土-砌体组合墙体具有更高的承载力及变形能力;通过等效黏滞阻尼系数对比分析可知,后加混凝土墙体提高了砌体墙的耗能能力;提出了后加混凝土-砌体组合墙体受剪承载力计算式,且与试验结果吻合较好。
[Abstract]:According to a practical project, the design of the 1: 2 scale vertical and horizontal two composite wall specimens were tested under low cyclic loading. In concrete masonry wall and the bearing capacity, ductility, hysteretic behavior, energy dissipation capacity and failure modes of reinforced concrete, and the strain component strain development process etc. The results show that: "Rachel (shear) joints reinforced + planting bar" with reliable connectivity, can not only ensure the cooperative work of masonry structure and after concrete; after concrete masonry - composite wall has higher bearing capacity and deformation capacity; through the comparative analysis of the equivalent viscous damping coefficient after that, with the increase of concrete wall masonry wall energy dissipation; put forward after concrete shear bearing capacity formula of the composite wall masonry, and are in good agreement with the experimental results.

【作者单位】：同济大学结构工程与防灾研究所;
【分类号】：TU398.9;TU352.11
【正文快照】： 0引言砌体结构由于造价低,施工工艺简单,施工速度快等优点而被广泛使用。砖墙和钢筋混凝土组合结构是一种特殊的结构形式,研究人员对其进行了相关的研究。高小旺等[1]通过8层砖墙和钢筋混凝土组合结构1∶2比例模型试验及分析研究,分析了组合结构的受力和变形特点、抗震性能。

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