基于等效拉杆模型的薄钢板剪力墙结构滞回性能分析  

Analysis of Hysteretic Behavior of Thin Steel Plate Shear Wall Based on Equivalent Strip Model

作　　者：孙国华[1] 顾强[1] 何若全[1] 方有珍[1] 

机构地区：[1]苏州科技学院江苏省结构工程重点实验室,江苏苏州215011

出　　处：《建筑科学与工程学报》2013年第1期38-48,共11页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金项目(50978175);江苏省高校自然科学基金项目(10KJB560004)

摘　　要：为了系统研究多层薄钢板剪力墙(SPSW)结构的抗震性能,利用经试验验证的双向等效拉杆模型分析了在低周往复荷载作用下内填钢板高厚比、内填钢板强度、钢梁刚度、钢柱刚度、柱中轴力等参数对SPSW结构滞回性能、水平承载力、抗侧刚度、耗能能力的影响。结果表明:等效拉杆模型可以较好地模拟薄钢板剪力墙结构的滞回性能,内填钢板高厚比、内填钢板强度、钢柱刚度对SPSW结构的抗震性能影响较大,钢梁刚度及柱中轴力对SPSW结构的抗震性能影响较小,但柱中轴力较大时,会导致结构过早失效。In order to systematically investigate the seismic behavior of thin steel plate shear wall （SPSW）, the effects of design parameters, including ratio of height to thickness of steel plate, strength of steel plate, stiffness of steel beam, stiffness of steel column, the axial force of steel column, etc. on the hysteretic behavior, horizontal bearing capacity, lateral stiffness, and energy dissipation of SPSW were analyzed under low cyclic loading via equivalent strip model that had been verified by experiment. The results show that equivalent strip model can be used to simulate the general hysteretic behavior, and the ratio of height to thickness of steel plate, strength of steel plate and stiffness of steel column of SPSW are the principal parameters influencing the structural seismic behavior, while the stiffness of steel beam and the axial force of steel column affect the general performance to some extent. However, the large axial force of steel column will lead to the collapse of SPSW in advance.

关 键 词：等效拉杆模型 钢板剪力墙 滞回性能 有限元分析 等效粘滞阻尼比 刚度 

分 类 号：TU392.4[建筑科学—结构工程]