考虑竖向地震作用的大跨隔震构造措施可靠性分析  

Reliability Analysis of Large Span Isolation Measures with Vertical Seismic Action

作　　者：滕晓飞 周林丽 曾玲玉[1] 姚文花[1] TENG Xiaofei;ZHOU Linli;ZENG Lingyu;YAO Wenhua(School of Civil Engineering of Jiaying University,Meizhou 514000, China;Earthquake Engineering and Test Center of Guangzhou University,Guangzhou 510405,China)

机构地区：[1]嘉应学院土木工程学院,广东梅州514021 [2]广州大学工程抗震研究中心,广州510000

出　　处：《广东水利水电》2022年第2期58-62,共5页Guangdong Water Resources and Hydropower

基　　金：嘉应学院校级科研项目(编号:131/320E 2037)。

摘　　要：对某8度区大跨度结构进行隔震设计,并基于动力弹塑性时程分析研究了抗震构造措施变化对隔震体系可靠性的影响。研究表明:构造措施的降低并不影响结构设计的内力计算结果;但考虑竖向地震作用下,构造措施越低上部结构越容易进入弹塑性,隔震层和上部结构相互耦合共同影响隔震体系的性能表现。The isolation design is carried out for a large-span structure in an 8-degree,and the influence of seismic structural measures on the reliability of isolation system is studied based on dynamic elastoplastic time history analysis.Results show:It will not affect the internal force calculation results of structural design through reduction of structural measures;However,the lower the structural measures,the easier it is for the superstructure to enter the elastic-plastic with considering the vertical earthquake.The mutual coupling between isolation layer and superstructure affects the performance of the isolation system.

关 键 词：隔震 竖向地震 构造措施 可靠性 

分 类 号：TU352.1[建筑科学—结构工程]