开洞双钢板组合剪力墙抗震性能试验

郭小农¹, 邱丽秋², 罗永峰¹, 李健¹, 董年才³, 张军³

(1.同济大学 土木工程学院, 200092 上海; 2.同济大学 建筑设计研究院(集团)有限公司, 200092 上海; 3.江苏中南建筑产业集团有限责任公司, 226124 江苏 南通)



摘要:

为满足双钢板组合剪力墙在实际工程中的应用需求,完成了2片双钢板组合剪力墙的拟静力试验,研究了不开洞和带开洞的双钢板组合剪力墙在特定轴压比和往复水平荷载作用下的受力特征和抗震性能．研究结果表明:双钢板组合剪力墙能够充分发挥钢板与混凝土材料各自的优点,是一种性能优越的抗侧力构件;开洞虽降低了初始刚度和极限承载力,但提高了变形能力和耗能能力．通过大量数值分析,研究了洞口位置、洞口形状、洞口面积等参数对剪力墙抗震性能的影响,提出开洞组合剪力墙抗剪承载力折减率的简化公式,并对洞口构造要求提出建议．

关键词:  组合剪力墙  开洞剪力墙  抗震性能  骨架曲线

DOI：10.11918/j.issn.0367-6234.2015.06.013

分类号:TU391

基金项目:



Seismic performance of concrete-filled double skin composite shear wall with opening

GUO Xiaonong¹, QIU Liqiu², LUO Yongfeng¹, LI Jian¹, DONG Niancai³, ZHANG Jun³

(1.Dept. of Building Engineering, Tongji University, 200092 Shanghai, China; 2. Tongji Architectural Design (Group) Co., Ltd, 200092 Shanghai, China;3. Jiangsu Zhongnan Construction Group Co., Ltd, 226124 Nantong, Jiangsu, China)

Abstract:

In order to meet the need of concrete-filled double skin composite shear walls in construction, quasi-static testing of two concrete-filled double skin composite shear walls have been carried out, and analysis of their load bearing properties and seismic performance has been completed. The results show that the composite shear wall can give full play to both materials and is an anti-shear member with superior performance. Although opening reduces shear wall’s bearing capacity and initial stiffness, it has good influence on the shear wall’s deformation capacity and energy dissipation capacity. A large amount of numerical models have been established to analyze the influence of opening configuration parameters on the composite shear wall’s seismic behavior, including the position, the shape and the size of the opening. Based on the finite element analysis, formula for calculating the reduction coefficient of bearing capacity has been proposed, and the structure requirement of opening has been suggested and verified.

Key words:  composite shear wall  shear wall with opening  seismic behavior  skeleton curve