双向水平地震激励下结构隔震控制分析  

ANALYSIS OF ISOLATION CONTROL FOR A STRUCTURE UNDER TWO HORIZONTAL GROUND MOTION EXCITATIONS

作　　者：赵天一[1] 李庆伟[2] 袁光英[3] 

机构地区：[1]山东大学土建与水利学院,济南250061 [2]中冶京诚工程技术有限公司,北京714000 [3]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《低温建筑技术》2012年第10期32-34,共3页Low Temperature Architecture Technology

摘　　要：通过数值模拟研究了地震作用下结构隔震控制研究。根据实际工程,利用国际通用软件SAP2000建立了结构三维有限元模型,对结构隔震前后进行了动力特性的分析,得到了结构的前六阶频率;根据I、II和III类场地,选取了3条典型的地震波;介绍了隔震支座的参数选取和有限元模拟;运用时程分析方法,分别研究了不同地震作用下结构有无隔震的控制反应。Isolation control for structure under earthquake action is studied by numerical simulation. A three-dimensional finite element model of structure is established by SAP2000 based on practical engi- neering, and dynamic characteristics are analyzed without and with seismic isolation, and first six natural vibration frequencies are obtained. Three typical seismic waves are selected based on I,II and III soil types. The parameters selection and finite element simulation of isolation bearing are introduced, respec- tively. Using time history analysis method, the responses of the structure with and without isolation con- trol under different seismic waves are investigated, respectively.

关 键 词：隔震控制 地震 时程分析 减震控制 

分 类 号：TU352.1[建筑科学—结构工程]