远场类谐和地震动作用下带限位装置滑移隔震结构地震响应分析  

Seismic Response Analysis of Friction-slip Isolation Structure with Displacement-limited Device Subjected to Far-field Harmonic-alike Ground Motion

作　　者：张超[1] 张慧[1] 杨谦[1] ZHANG Chao;ZHANG Hui;YANG Qian(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》2021年第6期1-6,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：以一栋5层的滑移隔震结构为研究对象,采用具有限位功能的隔震装置,输入远场类谐和地震动和远场非谐和地震动,对比分析带限位装置滑移隔震结构在远场类谐和地震动作用下地震响应的变化规律。研究表明:带限位装置滑移隔震结构作为周期较长的柔性结构,对远场类谐和地震动较为敏感,远场类谐和地震动作用下层间位移、楼层加速度、层间剪力较之远场非谐和地震动作用下对应层的层间位移、楼层加速度、层间剪力都在增大,且随着地震烈度增加,层间位移、层间剪力的增加幅度在减小。两种地震动作用下隔震结构的地震响应基本都随地震烈度的增加而增大。在进行隔震结构设计时,要充分考虑远场类谐和地震动对带限位装置滑移隔震结构的影响。Taking a 5-story sliding isolation structure as the research object,sliding isolation equipments with displacement limit device was adopted,far-field harmonic-like seismic wave and far-field non-harmonic seismic wave were input,the seismic responses of the sliding isolation structure with displacement limit device under the action of far-field harmonic-like ground motion was analyzed.Analysis results show that as a long-period flexible structure,the sliding isolation structure with displacement limit device is more sensitive to far-field harmonic-like ground motions,interlayer displacement,acceleration and interlayer shearing force subjected to far-field harmonic-like ground motion increases obviously than far-field non-harmonic ground motion,and with the increase of earthquake intensity,increase amplitude of interlayer displacement and interlayer shearing force is decreasing.The seismic response of the isolation structure under the action of the two kinds of seismic waves basically increases with the increase of seismic intensity.When designing a isolation structure,it is necessary to fully consider the influence of farfield harmonic-like ground motion on the sliding isolation structure with displacement limit device.

关 键 词：滑移隔震 限位装置 远场类谐和地震动 地震响应 

分 类 号：TU352􀆰[建筑科学—结构工程]