开洞薄钢板剪力墙低周反复荷载试验研究  

Test on thin steel plate shear wall with opening under cyclic loading

作　　者：郝际平[1] 曹春华[2] 王迎春[1] 李峰[1] 

机构地区：[1]西安建筑科技大学,陕西西安710055 [2]香港华艺设计顾问(深圳)有限公司,广东深圳518031

出　　处：《地震工程与工程振动》2009年第2期79-85,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50378078);陕西省自然科学基金(2005E233)

摘　　要：薄板墙的滞回曲线在零位移附近有零刚度现象,存在明显的捏缩效应,常规方法是直接采用中厚板或通过强大的加劲体系将薄板转化成中厚板,但这将降低薄板墙的经济性。通过两片开洞薄钢板墙低周反复荷载试验,系统地研究了开洞钢板墙的破坏过程和破坏机理,得到了承载力,侧移刚度,延性和耗能能力等指标。试验结果表明,开洞钢板墙有较高的承载力和侧移刚度,延性和耗能能力很好。开洞不仅可以满足门窗洞口等建筑需求,而且可以减小内填板宽度,调节内填板与框架的刚度比,避免薄板墙的捏缩效应,使构件有更高的安全储备,开洞钢板墙是一种理想的水平抗侧力构件。The cyclic behavior of the thin steel plate shear wall was generally characterized by hysteretic loops that were pinched at the point of zero displacement. In general, to avoid the pinch phenomena, more thick panels or heavy stiffeners were needed, but they will increase the cost of steel plate and shear walls. A new type of earthquake - resisting element, consisting of a thin steel plate shear wall with opening, was studied. Test results were presented for 2 one- story single bay specimens of roughly one-third of full scale, which were subjected to cyclic lateral loading. These tests provided data for general performance, failure pattern, lateral stiffness, ductility and ener- gy dissipation capacities. Good energy dissipation and ductility capacities were achieved. In this system, opening can reduce the width of infilled panel, adjust the stiffness ratio of infilled panel to frame in post - buckling domain and avoid the pinch phenomena. The experimental results show that the thin steel plate shear wall with opening is an effective lateral load resisting element.

关 键 词：钢板剪力墙 循环荷载 延性 开洞 捏缩效应 

分 类 号：TU392.4[建筑科学—结构工程]