含型钢边缘构件混合连肢墙结构抗震性能试验研究  

Experimental study on seismic behavior of hybrid coupled wall system with steel boundary elements

作　　者：石韵[1] 苏明周[1] 梅许江[1] 

机构地区：[1]西安建筑科技大学结构与抗震教育部重点实验室,陕西西安710055

出　　处：《地震工程与工程振动》2013年第3期133-139,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50878182);陕西省自然科学基金项目(SJ08E209)

摘　　要：为研究含型钢边缘构件混合连肢墙结构的抗震性能,进行了1个5层1/3缩尺模型试件低周反复加载试验。模型试件的耦连比为30%,根据底部剪力法采用三质点倒三角形加载形式。通过分析试件在循环荷载作用下的破坏形态、滞回曲线、刚度退化、延性及结构的耗能能力等,得到结构的破坏机理,并对结构抗震性能进行了评价。试验结果表明:该结构体系通过钢连梁的剪切变形和墙肢底部的塑性铰变形来耗散能量,能够明显改善钢筋混凝土双肢剪力墙的抗震性能;但是耦连比为30%时,墙肢混凝土裂缝较为集中,破坏主要出现在底部两层,建议提高耦连比进行进一步研究。In order to study the hysteretic behavior of hybrid coupled wall system with steel boundary element,an experiment on a 1 /3 scaled 5-storey model has been carried out under cyclic loading.The coupling ratio（CR） of the model is 30%,and the loading pattern of three particles is adopted to simulate the pattern of earthquake forces in terms of base shear method.Based on the test result,the seismic behavior is evaluated by hysteretic behavior,rigidity degeneration,ductility,energy dissipation,and failure mode.The study reveals that the new system dissipates energy by shear deformation of steel beams and plastic hinge deformation at the bottom of wall,so the seismic behavior of shear walls can be significantly improved.But when CR is equal to 30%,the cracks in the concrete wall concentrates mainly on the bottom two storeys.Further research should be performed with high CR values.

关 键 词：混合连肢墙 型钢边缘构件 钢连梁 耦连比 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程] P315.92[天文地球—地震学]