8度抗震设防烈度区板柱-剪力墙高层结构安全性能分析  

Safety performance analysis of slab-column shear wall high-rise structures in an 8-degree seismic fortification intensity area

作　　者：薛红京 高志斌[2] 束伟农[1] 吴徽[3] 蔡青 XUE Hongjing;GAO Zhibin;SHU Weinong;WU Hui;CAI Qing(Beijing Institute of Architectural Design Co.,Ltd.,Beijing 100045,China;Tianjin Binhai International Airport Co.,Ltd.,Tianjin 300300,China;Beijing Architecture University,Beijing 102616,China)

机构地区：[1]北京市建筑设计研究院有限公司,北京100045 [2]天津滨海国际机场有限公司,天津300300 [3]北京建筑大学,北京102616

出　　处：《地震工程与工程振动》2023年第5期165-174,共10页Earthquake Engineering and Engineering Dynamics

基　　金：北京市建筑设计研究院有限公司创新发展基金项目(2021-082)。

摘　　要：板柱结构节约结构空间是一种常用建筑结构形式,通常也被认为是抗震薄弱体系,我国GB 50011—2010《建筑抗震设计规范》对板柱结构使用范围以及适用高度作了严格限定,与国外规范相比较,我国结构规范对板柱结构有细致严格的构造要求。结合北京8度区某17层带边框高层板柱-剪力墙结构的实际工程,通过ETABS有限元程序对结构进行多遇地震作用分析,重点研究了楼板应力分布。采用SAUSG有限元程序补充罕遇地震下有限元非线性分析,研究了墙柱损伤情况与主要构件性能。应用SAP2000程序采用拆除构件法,分析了板柱结构抗连续倒塌能力。研究结果表明,在满足规范规定构造措施前提下,带边框板柱-剪力墙结构具有较好的承载能力、良好的抗震性能和抗连续倒塌能力,可以达到8度抗震设防烈度区高层建筑安全性能要求。Slab-column structure is a common form of building structure,that can save structural space and is usually considered as a weak seismic system.The application scope and applicable height of the slab-column structure are strictly limited in“GB 50011—2010 code for seismic design of buildings”,which has more detailed and strict structural requirements for slab-column structures than foreign codes.In this paper,combined with the actual project of a 17-storey framed slab-column and shear wall structure in Beijing,the responses of the structure under the action of the frequently earthquakes were analyzed by ETABS,and the stress distribution of the floors was investigated.Using SAUSG to supplement the finite element nonlinear analysis under the action of rarely occurred earthquakes,the damage and the performance of the main components were investigated.The ability of slab-column structure to resist progressive collapse is analyzed by SAP2000 with the application of the method of dismantling components.According to the above analysis results,under the premise of meeting the structural measures of the codes,the framed slab-column and shear wall structure has good bearing capacity and strong seismic performance and progressive collapse resistance.The structure can meet the safety performance requirements of high-rise buildings in the 8-degree seismic fortification area.

关 键 词：板柱结构 高层建筑 抗震性能 非线性分析 抗连续倒塌 

分 类 号：TU97.3[建筑科学]