带竖缝T形装配式剪力墙抗震性能试验研究

吕远贵; 胡龙平; 张相超; 张恒; 李建闯; 余敏; 池寅

doi:10.13204/j.gyjz201908300010

带竖缝T形装配式剪力墙抗震性能试验研究

doi: 10.13204/j.gyjz201908300010

1. 中建三局绿色产业投资有限公司, 武汉 430100;
2. 武汉大学土木建筑工程学院, 武汉 430072

基金项目:

国家重点研发计划项目（2016YFC0701402）。

详细信息

作者简介:
吕远贵,男,1988年出生,硕士,工程师。

通讯作者:
余敏,男,1982年出生,博士,副教授,ceyumin@163.com。

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- 文章访问数: 103
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- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2020-07-16
- 网络出版日期: 2021-09-16
- 刊出日期: 2021-09-16

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF T-SHAPED PREFABRICATED CONCRETE SHEAR WALL CONNECTED WITH A VERTICAL SEAM

1. China Construction Third Bureau Green Industry Investment Co., Ltd., Wuhan 430100, China;
2. School of Civil Engineering, Wuhan University, Wuhan 430072, China

摘要

摘要: 为了减少装配式剪力墙边缘构件现浇的问题，提出了一种带竖向拼缝的新型T形装配式混凝土剪力墙连接方式，即只对上部暗梁连接处进行现浇连接，从而方便施工，提高装配率。为了验证该新型装配式剪力墙的可行性，对装配式和现浇的T形剪力墙进行拟静力试验，重点分析连接处暗梁高度对T形剪力墙的滞回性能、刚度退化、延性以及耗能能力等的影响规律。试验结果表明：带竖缝T形装配式剪力墙的最终整体破坏模式为腹板墙外侧边缘构件底部的混凝土压碎破坏，上部暗梁连接处为局部剪切破坏，构件整体呈现弯曲破坏形态，与现浇构件类似；同时，该T形装配式剪力墙的滞回曲线饱满且呈非对称，表明其具有良好的耗能能力。此外，与相应的现浇剪力墙对比，该T形装配式剪力墙的承载力降低，变形能力和耗能能力差异不大。
- 装配式剪力墙 /
- 抗震性能 /
- 拟静力试验 /
- 竖向接缝
Abstract: A new type of prefabricated concrete shear wall, which is connected by the dark beam with a vertical seam, was proposed to reduce the quantity of cast-in-situ concrete in the edge members of the shear wall, and it also can facilitate the construction and improve the assembly rate. In order to verify the feasibility of the new prefabricated shear wall, quasi-static tests were carried out on the prefabricated and cast-in-situ T-shaped shear walls. The influence of dark beam height on the hysteretic behavior, stiffness degradation, ductility and energy dissipation capacity of T-shaped shear wall was studied. The experimental results showed that the failure modes of T-shaped precast shear walls were bending failures for integral component and shear failures for local joint, and the concrete at the bottom of the shear wall away from the flange side was crushed, which was similar to that of cast-in-situ shear wall; the hysteretic curves of shear walls were asymmetrical and very full, which showed a good energy dissipation capacity; comparing with the cast-in-situ shear walls, the bearing capacity of the prefabricated shear walls was reduced, but there was little difference between the deformation capacity and energy dissipation capacity.
- prefabricated shear wall /
- seismic performance /
- quasi-static test /
- vertical seam

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