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装配式空心剪力墙拟静力试验研究
韩淼,蒋金卫,杜红凯,张荣强
摘 要

(北京建筑大学北京节能减排关键技术协同创新中心, 北京 100044)

[摘要]对2片不同轴压比的装配式空心剪力墙进行了拟静力试验,描述了该墙的破坏过程,分析了墙体的破坏特征、滞回特性、耗能能力等抗震性能。结果表明,装配式空心剪力墙主要呈弯剪破坏;随着轴压比的增大,墙体承载力增大,延性提高,耗能能力提高,刚度退化加快;装配式空心剪力墙的抗震性能良好,应用于三层及以下低轴压比结构时,具有较大的安全储备。最后,结合试验结果与相关文献结论,给出了该结构形式的装配式空心剪力墙的弹性刚度计算式修正系数。

[关键词]装配式空心剪力墙; 抗震性能; 滞回特性; 拟静力试验; 刚度公式

中图分类号:TU375, TU312文献标识码:A文章编号:1002-848X(2017)10-0082-07

 

Pseudo-static experimental study on prefabricated hollow shear walls

Han Miao, Jiang Jinwei, Du Hongkai,  Zhang Rongqiang

(Beijing Collaborative Innovation Center of Energy Conservation and Emission Reduction Technology, Beijing University of Civil Engineering and Architecture, Beijing 100044, China)

Abstract:The quasi-static experiment was conducted on 2 pieces of prefabricated hollow shear walls with different axial compression ratios. The failure process of the wall was described, and the seismic performance such as the failure characteristics, hysteresis characteristics and energy dissipation capacity of the walls were analyzed. The results show that the prefabricated hollow shear wall suffers from bending and shear failures. With the increase of the axial compression ratio, the bearing capacity of the wall is increased, the ductility is improved, the energy dissipation capacity is improved and the rigidity degradation is accelerated. The seismic performance of the prefabricated hollow shear wall is good, and it has large security reserves when it is applied to the structure with three layers or less under low axial pressure ratio. Finally, the correction coefficient of elastic stiffness calculation formula of the prefabricated hollow shear wall was given in combination with the experimental results and the related literatures.

Keywords:prefabricated hollow shear wall; seismic performance; hysteretic characteristic; pseudo-static experiment; stiffness formula

 

通讯作者:杜红凯,博士,高级实验师,Email: duhongkai@bucea.edu.cn。

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