减隔震支座在某大型不规则结构中的应用研究  

Research on the Application of Isolation Bearing in A Large Irregular Structure

作　　者：郑晗 范进[1] 陈彦北[2] ZHENG Han;FAN Jin;CHEN Yan-bei(Nanjing University of Science and Technology,Nanjing 210094,China;Zhuzhou Times NewMaterials Technology Co.Ltd.,Zhuzhou 412000,China)

机构地区：[1]南京理工大学,南京210094 [2]株洲时代新材料科技股份有限公司,湖南株洲412000

出　　处：《工程建设与设计》2020年第9期32-34,共3页Construction & Design for Engineering

摘　　要：以某在建的大型不规则结构为背景工程,分析了大型不规则结构在地震作用下可能存在的问题,论证了采取减隔震措施的必要性。利用MIDAS/CIVIL软件对采用不同减隔震支座的不规则结构进行了动力时程分析,比较分析了各减隔震支座的减震效果,确定了最佳减震方案。结果表明:相对于钢阻尼支座、高阻尼橡胶支座和摩擦摆支座,铅芯橡胶支座不仅能有效控制下部结构最大内力,且对上部结构关键位置的最大位移有显著控制效果。Taking a large-scale irregular structure under construction as a background project,this paper analyzes the possible problems of large-scale irregular structure under the earthquake action,and demonstrates the necessity of taking the measures of reducing and isolating earthquake.In this paper,MIDAS/CIVIL software is used to analyze the dynamic time history of the irregular structure with different isolation bearings.The damping effect of each isolation bearing is compared and analyzed,and the best damping scheme is determined.The results show that,compared with steel damping bearing,high damping rubber bearing and friction pendulum bearing,lead rubber bearing can not only effectively control themaximum internal force of the substructure,but also significantly control themaximum displacement of the key position of the superstructure.

关 键 词：不规则结构 减隔震支座 时程分析 减震效果 

分 类 号：TU352.12[建筑科学—结构工程]