某弱底盘超高层双塔结构抗震性能研究  

SEISMIC PERFORMANCE OF A SUPER HIGH-RISE TWIN-TOWER STRUCTURE WITH A WEAK BASEPLATE

作　　者：张帅 ZHANG Shuai(Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《低温建筑技术》2022年第8期96-100,共5页Low Temperature Architecture Technology

摘　　要：基于某实际工程,对于弱底盘双塔结构的抗震性能进行了研究。采用结构分析软件,对于整体结构分别进行了多遇地震作用下弹性分析以及罕遇地震作用下动力弹塑性时程分析,同时对裙房楼板在地震作用下的受力性能进行了专门分析,评估了结构在地震作用下的承载、变形及耗能能力。结果表明结构体系合理,裙房楼板传递水平力可靠,地震作用下结构具备明确的耗能机制。Based on a practical project, the seismic performance of double-tower structure with weak baseplate is studied. By using structural analysis software, elastic analysis of the whole structure under frequently occurred earthquake and dynamic elastic-plastic time history analysis under rarely occurred earthquake are carried out respectively, in which the mechanical properties of the podium floor under earthquake are analyzed. The bearing capacity, deformation, and energy dissipation capacity of the structure under earthquake are evaluated. The results shows that the structural system is reasonable, the horizontal force transmitted by the podium floor is reliable, and the structure has a clear energy dissipation mechanism under earthquake action.

关 键 词：双塔结构 弱底盘 弹性分析 弹塑性时程分析 

分 类 号：TU311[建筑科学—结构工程]