摩擦摆基础隔震结构多维地震反应分析  

Analysis on seismic response of base-isolated structures with friction pendulum system under multi-axial ground motions

作　　者：王建强[1] 冯俊昌 李大望[3] 

机构地区：[1]郑州大学土木工程学院,河南郑州450001 [2]林州建总建筑工程有限公司,河南郑州450045 [3]深圳大学土木工程学院,广东深圳518060

出　　处：《世界地震工程》2009年第4期92-96,共5页World Earthquake Engineering

基　　金：国家自然科学基金(50478050);郑州大学校企合作项目

摘　　要：对摩擦摆基础隔震结构进行了单向、双向和三向地震反应对比分析,表明考虑双向水平地震动时摩擦摆基础隔震结构的支座位移增大,而结构的加速度和楼层剪力减小,其中对支座位移和结构加速度影响较大;考虑竖向地震动时摩擦摆基础隔震结构的支座位移略有减小,而结构的加速度和楼层剪力增大,其中对结构加速度影响较大。因而,在进行摩擦摆基础隔震结构地震反应分析时,应考虑多维地震动的影响。The comparing analyses between unilateral, bilateral and triaxial seismic response of base-isolated structures with friction pendulum system are carried out. It is found that when the bilateral horizontal ground motions are considered, the displacements of isolation bearing will increase, the accelerations and the inter-story shears of the structures will decrease. When the vertical ground excitation is considered the displacements of the isolation bearing will slightly decrease, the accelerations and the inter-story shears of the structures will increase. So that the influence of multi-axial ground motions on seismic response of the base-isolated structures should be considered.

关 键 词：摩擦摆 基础隔震结构 多维地震动 地震反应 

分 类 号：TU352.1[建筑科学—结构工程] P315.966[天文地球—地震学]