内藏桁架混凝土组合中高剪力墙抗震性能试验研究  

Experimental Study on Seismic Behavior of Mid-rise RC Shear Wall With Concealed Truss

作　　者：曹万林[1] 张建伟[1] 张静娜[1] 王敏[1] 

机构地区：[1]北京工业大学 建筑工程学院 城市与工程安全减灾省部共建教育部重点实验室,北京100022

出　　处：《北京工业大学学报》2008年第6期572-579,共8页Journal of Beijing University of Technology

基　　金：国家自然科学基金项目(50678010);北京市属市管高校拔尖创新人才基金(05004311200501);北京市自然科学基金项目(8072007);北京市新世纪百千万人才基金(35004999200602)

摘　　要：首先提出了内藏桁架混凝土组合剪力墙,其内藏桁架包括钢桁架、钢筋桁架及钢-钢筋组合桁架.该新型组合剪力墙包含2种组合,即不同受力体系-桁架与剪力墙的组合、不同材料-型钢与混凝土的组合,形成了双重组合剪力墙.进行了6个1/3缩尺的普通、内藏钢框架及内藏不同材料桁架混凝土中高剪力墙的抗震性能试验研究.在此基础上,对比分析了各剪力墙的刚度及其衰减过程、承载力、延性、滞回特性、耗能能力及破坏特征;建立了内藏桁架混凝土中高剪力墙的刚度和承载力计算模型,计算结果与实测结果符合较好;提出了该新型剪力墙的抗震设计建议.试验结果表明,内藏钢框架及内藏不同材料桁架混凝土中高剪力墙的抗震性能比普通混凝土中高剪力墙明显提高.In this paper, mid-rise shear wall with concealed truss has been brought forward. This new composite shear wall includes two kinds of composition. One is composition of two bearing systems, including truss and shear wall, the other is composition of two materials, including steel and concrete. So it is a double composite shear wall. The experimental study on the seismic behavior of six 1/3 scale mid-rise shear walls, including a usual mid-rise shear wall, a mid-rise shear wall with steel frame and four mid-rise shear wall with concealed truss made of different materials, has been studied. Based on the experimental study, the stiffness and its attenuation, bearing capacity, ductility, hysteretic property, energy dissipation and failure phenomena of each shear wall are contrastively analyzed. The formulas of bearing capacity and stiffness are established. The results obtained from the formulas and those from experiment are in good agreement. Some suggestions for seismic design of shear wall have been put forward to in this paper. The experimental results show that the seismic behavior of the mid-rise shear wall with steel frame and every truss with different materials have been obviously improved.

关 键 词：钢筋混凝土 型钢 内藏桁架 组合剪力墙 抗震性能 

分 类 号：TU375[建筑科学—结构工程]