近断层脉冲型地震动作用下带限位装置滑移隔震结构动力响应分析  

Dynamic Response Analysis of Friction-slip Isolation Structure with Displacement-limited Device Subjected to Near-fault Pulse Ground Motion

作　　者：张慧[1] 张超[1] 侯伟[1] ZHANG Hui;ZHANG Chao;HOU Wei(Shaanxi Polytechnic Institute,Xianyang 712000,China)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000

出　　处：《粉煤灰综合利用》2022年第1期6-11,共6页Fly Ash Comprehensive Utilization

基　　金：陕西省教育厅专项基金(12JK0895);陕西工业职业技术学院2021年院级科研计划项目(2021YKYB-067)。

摘　　要：采用SAP 2000有限元分析软件,对带限位装置滑移隔震结构在近断层脉冲型地震动和近断层非脉冲型地震动作用下进行了结构动力响应(加速度、层间位移、层间剪力)对比分析。分析结果表明:近断层脉冲型地震动具有明显的脉冲效应,使得近断层脉冲型地震动作用下的各层加速度、层间位移、层间剪力较之近断层非脉冲型地震动作用下对应层的加速度、层间位移、层间剪力明显增大,且随着地震烈度的增加,增大幅度也在提高。因此,进行带限位装置滑移隔震结构设计时不能忽视近断层脉冲型地震对结构的影响,从而确保结构设计安全。SAP 2000 finite element analysis software was used to compare and analyze the dynamic response(acceleration, interstorey displacement and interstorey shear) of sliding isolation structure with limit device under the action of pulse-type ground motion near fault and non-pulse-type ground motion near fault.Type analysis results show that pulse near fault ground motion has obvious effects of pulse, makes nearly pulse type faults under the action of earthquake ground motion acceleration and displacement between layers of each layer, interlayer shear than near the fault type of pulse ground motion under the action of the acceleration and displacement between floors of the corresponding layer, interlayer shear increases obviously, and with the increase of earthquake intensity, increase amplitude are also improved.Therefore, the influence of near-fault pulse earthquake on the structure cannot be ignored in the design of slip isolation structure with limit device, so as to ensure the safety of structure design.

关 键 词：限位装置 滑移隔震 近断层脉冲型地震动 动力响应 

分 类 号：TU352.1[建筑科学—结构工程]