不同地震动特性下的并联复合隔震结构的地震响应分析  

Seismic Response Analysis of the Parallel Composite Isolation Structure Subjected to Different Characteristics of Earthquake Ground Motions

作　　者：周爱红[1] 袁颖[1] 李治广[1] 

机构地区：[1]石家庄经济学院勘查技术与工程学院,河北石家庄050031

出　　处：《建筑科学》2014年第7期23-27,69,共6页Building Science

基　　金：国家大坝安全工程技术研究中心开放基金(NDSKFJJ1201);国家自然科学基金(41301015)

摘　　要：本文基于层间剪切模型建立并联复合隔震结构的运动微分方程,引入状态空间法对其进行求解,得到位移、速度和加速度地震响应,最后结合工程实例,对不同地震动特性下的并联复合隔震结构的最大位移响应、最大剪力响应、滞回响应和能量时程响应进行计算、分析。结果表明:并联复合隔震结构能充分发挥不同类型隔震支座的优点,有效降低上部结构的地震响应;不同地震动特性对并联复合隔震结构的地震响应有重要影响,可为并联复合隔震结构的设计提供参考。Based on the story shear model, the motion differential equation of parallel composite isolation structure is established. The state space method is used to solve the above equation so as to get seismic responses of displacement, velocity and acceleration. Finally, Combined with an engineering example, the maximum displacement response, the maximum shear response, the hysteretic response and the energy time-history response of parallel composite isolation structure subjected to different characteristics of earthquake ground motions are calculated and analyzed. The results show that parallel composite isolation structure can give full play to advantages of different types of isolated bearings and effectively reduce the seismic responses of the superstructure; different characteristics of earthquake ground motions have important effects on seismic responses of parallel composite isolation structure. The results can provide guidance for the design of parallel composite isolation structure.

关 键 词：并联复合隔震 地震动特性 地震响应 状态空间法 

分 类 号：TU352.1[建筑科学—结构工程]