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主办单位:重庆大学
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不同轴压比钢管混凝土边缘约束叠合剪力墙的抗震性能
侯和涛1,2,3, 颜雪雪1, 程积润1, 王彦明1,2, 方明霁4, 李明俊1
1.山东大学 土建与水利学院, 济南 250061;2.山东大学 山东省绿色建筑智能建造工程技术研究中心, 济南 250061;3.青岛鑫光正钢结构股份有限公司, 山东 青岛 266799;4.上海师范大学 建筑工程学院, 上海 201400
摘要:
对1片现浇剪力墙和轴压比不同的3片新型钢管混凝土边缘约束叠合剪力墙进行拟静力试验,研究其在往复水平荷载作用下的试验现象、破坏形式和抗震性能,提出钢管混凝土边缘约束叠合剪力墙屈服承载力的计算方法;采用XTRACT有限元分析软件对新型剪力墙峰值承载力进行算例验证,二者结果吻合较好。研究表明:钢管混凝土边缘约束叠合剪力墙的水平承载力和耗能能力较现浇混凝土剪力墙有所提高;其承载力随着轴压比的增大而增大;实验范围内的轴压比对其耗能能力的影响较小。
关键词:  钢管混凝土  叠合剪力墙  轴压比  承载力  抗震性能
DOI:10.11835/j.issn.2096-6717.2019.097
分类号:TU375
基金项目:国家自然科学基金(51878390、51508331、51578324)
Seismic behavior of shear walls with concrete filled tube under differents axial compression ratios
Hou Hetao1,2,3, Yan Xuexue1, Cheng Jirun1, Wang Yanming1,2, Fang Mingji4, Li Mingjun1
1.School of Civil Engineering, Shangdong University, Jinan 250061, P. R. China;2.Shandong Research Center for Green Building and Intelligent Construction, Shangdong University, Jinan 250061, P. R. China;3.Qingdao Xinguangzheng Steel Structure Co. Ltd, Qingdao 266799, Shandong, P. R. China;4.College of Civil Engineering, Shanghai Normal University, Shanghai 201400, P. R. China
Abstract:
Cyclic tests were carried out on a conventionally reinforced concrete shear wall and three sandwich shear walls with concrete filled steel tubes (SW-CFT). The vertical compression forces on the experimental specimens were varied. The failure mode and hysteretic behavior of each experimental specimen under the combined vertical compression and lateral cyclic loading were evaluated. The equations to calculate the wall lateral resistances associated with the yielding states were derived. The experimental specimens were also simulated by the computer program-XTRACT. Comparisons revealed that the derived equations and the computer model both provide reasonable predictions for the wall resistances. The result show that the SW-CFTs exhibited high horizontal bearing capacity and energy consumption. In addition, the axial compression ratio is proportional to the strength exaltation and has only marginal effects on the seismic behavior of the SW-CFTs within the test range in this study.
Key words:  concrete filled steel tube  sandwich shear wall  axial compression ratio  bearing capacity  seismic behavior
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