摘要
组合钢板墙是一种适用于高层建筑的新型抗侧力构件。对钢框架-组合钢板墙核心筒结构在多遇地震和罕遇地震下的抗震性能进行分析,研究结构在罕遇地震作用下的破坏顺序和破坏模式,并与基本自振周期相近的钢框架-混凝土核心筒结构的抗震性能进行对比,以考查组合钢板墙对钢框架-核心筒结构抗震性能的影响。分析结果表明,在多遇地震作用下,钢框架-组合钢板墙筒体结构和钢框架-钢筋混凝土筒体结构的抗震性能相差不大;在罕遇地震作用下,钢筋混凝土核心筒很快发生塑性损伤,随即刚度严重退化,而组合钢板剪力墙中的钢板先屈服,可以减缓核心筒的刚度退化,提高核心筒的延性,从而改善钢框架-核心筒结构的抗震性能。
Composite steel plate shear wall is a new type of earthquake-resisting element.Seismic performance of steel frame-composite steel plate shear wall structure was analyzed under frequent earthquake and severe earthquake.The failure sequence and failure mode of the structure were studied under severe earthquake.In order to study the influence of composite steel plate shear wall on steel frame-core wall structure,comparisons were carried out between steel frame-concrete core wall structure and steel frame-composite steel plate shear wall structure with similar fundamental period.The analysis results show that the seismic performance of steel frame-concrete core wall structure is similar to that of steel frame-composite steel plate shear wall structure under frequent earthquake.When the structure was affected by severe earthquake,the plastic damage of concrete core wall occurred quickly,which induced significant stiffness degradation.The stiffness degradation of core wall can be slowed down and the ductility can be effectively improved when the yielding of steel plate occurred first under severe earthquake.
出处
《土木工程学报》
EI
CSCD
北大核心
2010年第S1期392-396,共5页
China Civil Engineering Journal
基金
广东省基金团队项目(8351009101000001)
广东省科技计划项目(2008B030303075)
广州市科技计划项目(2008J1-C251-1)
广州市属高校科技计划项目(08C048)
广州大学减震控制与结构安全开放实验室基金
关键词
钢框架-核心筒结构
组合钢板墙
抗震性能
延性
steel frame-core wall structure
composite steel plate shear wall
seismic performance
ductility
