（郑州大学土木工程学院， 郑州 450001）

［摘要］为了研究暗柱中的高强筋材类型对剪力墙抗震性能的影响，完成了2片暗柱内配置钢铰线剪力墙和2片暗柱内配置碳纤维复合材料（CFRP筋）剪力墙的水平低周反复加载试验，对比研究了4片剪力墙在0.17和0.26两种轴压比下的破坏形态、滞回性能、承载力、骨架曲线、刚度退化、耗能能力以及自复位能力。结果表明：暗柱内配置钢绞线剪力墙的受压破坏区域较配置CFRP筋剪力墙大2倍左右，两者在破坏形态上的差异受轴压比影响不大；暗柱内配置钢铰线剪力墙的承载力比暗柱内配置CFRP筋剪力墙的高，在两种轴压比下的极限侧向变形也大；轴压比对暗柱内配置钢绞线剪力墙和CFRP筋剪力墙的能量耗散系数影响较大；所有剪力墙在大变形下均具有较好的自复位能力，配置CFRP筋剪力墙的残余变形相对较小。

［关键词］暗柱；  剪力墙； 抗震性能； CFRP筋； 钢绞线； 自复位

中图分类号：TU375文献标识码：A文章编号：1002-848X(2020)15-0069-05

Effect of different high strength reinforcements in the edge column on seismic performance of shear walls

LUO Jing, ZHAO Jun

(School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

Abstract:In order to study the effect of the type of high-strength reinforcements in the edge column on the seismic performance of shear walls, 2 shear walls reinforced by steel strand in the edge column and 2 shear walls reinforced by carbon fiber reinforced plastic(CFRP) bar in the edge column were tested under low cyclic reversed lateral loading, and the failure modes, hysteresis performance, bearing capacity, skeleton curves, stiffness degradation, energy dissipation capacity, and self-centering capability of the 4 shear walls were compared and studied under the axial compression ratios of 0.17 and 0.26. The results show that the compression failure area of the shear walls reinforced by steel strand in the edge column is about 2 times larger than that of shear walls reinforced by CFRP bar, and the difference in the failure modes of the two types of shear walls is not affected by the axial compression ratio; the bearing capacity of shear walls reinforced by steel strand in the edge column is higher than that of shear walls reinforced by CFRP bar in the edge column, and the ultimate lateral deformation is also greater under two axial compression ratios; the axial compression ratio has a significant impact on the energy dissipation coefficient of concrete shear walls reinforced by steel strand and CFRP bar in the edge column; all shear walls have good self-centering capability under large deformation, and the residual deformation of shear walls reinforced by CFRP bar in the edge column is relatively smaller.

Keywords:edge column; shear wall; seismic performance; CFRP bar; steel strand; self-centering

*国家重点研发计划项目（2016YFR0125600），教育部创新团队发展计划项目（IRT_16R67），中原千人计划-中原科技创新领军人才项目（ZYQR201912029）。

作者简介：罗京，硕士研究生，Email: 18236911339@163.com； 通讯作者：赵军，博士，教授，博士生导师，Email:zhaoj@zzu.edu.cn。