罕遇地震作用下特别不规则结构抗震性能分析  

Seismic performance analysis of particularly irregular structures under rare earthquake

作　　者：王超 Wang Chao(China Jingye Engineering Co.,Ltd.,Beijing 100088,China)

机构地区：[1]中国京冶工程技术有限公司,北京100088

出　　处：《山西建筑》2024年第16期54-58,共5页Shanxi Architecture

摘　　要：特别不规则结构的抗震性能分析一直是结构设计领域的重点与难点问题。基于盈建科(YJK)软件对某特别不规则的大型综合体结构分别进行了罕遇地震作用下的弹性和弹塑性分析,对结构位移响应、基底剪力、构件损伤及结构耗能等进行了分析:弹塑性分析的结构基底剪力、柱顶位移及层间位移角等响应大于弹性分析的结构响应;该结构在罕遇地震作用下处于基本完好状态,仅局部构件产生轻微损坏,结构的塑性耗能占比较少,塑性变形较小。结果表明:基于多遇地震设计的该特别不规则的大型综合体结构,采取合理的抗震加强措施后,在罕遇地震作用下,结构基本处于弹性状态,能够满足规范的相关要求。The seismic performance analysis of particularly irregular structures has always been a key and difficult issue in the field of structural design.This article is based on the YJK software to conduct elastic and elastic-plastic analysis of a particularly irregular large-scale complex structure under rare earthquake action.The displacement response,base shear force,component damage,and energy dissipation of the structure are analyzed.The elastic-plastic analysis shows that the response of the structural base shear force,column top displacement,and inter story displacement angle is greater than that of the elastic analysis;The structure is in a basically intact state under rare earthquake action,with only slight damage to local components.The plastic energy consumption of the structure is relatively small,and the plastic deformation is relatively small.The results show that,based on the design of this particularly irregular large complex structure under frequent earthquakes,after taking reasonable seismic strengthening measures,the structure is basically in an elastic state under rare earthquakes and can meet the relevant requirements of the code.

关 键 词：不规则结构 弹塑性时程分析 构件损伤 结构耗能 

分 类 号：TU352[建筑科学—结构工程]