多层偏心结构的Pushover分析  

Seismic Behavior of Asymmetric Building under Pushover Analysis

作　　者：刘畅[1] 邹银生[2] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]湖南大学结构工程研究所,湖南长沙410082

出　　处：《重庆建筑大学学报》2007年第3期61-65,共5页Journal of Chongqing Jianzhu University

摘　　要：Pushover方法是研究在强震作用下结构弹塑性性能的工具。应用三维Pushover方法分析多层偏心结构在地震作用下的弹塑性侧扭耦联反应,分别以框架和框剪结构为研究对象,以相应的对称结构作为参照,对比两者在不同目标位移的顶点位移-基底剪力的能力曲线、层间位移和转动中心的变化规律,得到多层偏心结构弹塑性侧扭耦联反应特点。为偏心结构基于性能的抗震设计提供依据和参考。Pushover analysis is a tool to study the inelastic behavior of structures under strong seismic action. The 3D-pushover analysis was performed to analyze the inelastic lateral-torsional coupled response of multistory asymmetric structures. The symmetric frame and frame-wall systems were studied in this paper, and the capability curve of the top displacement and base shear,the story drift and the position of rotation center were compared with reference to corresponding symmetric structures. The characters of inelastic response of multistory asymmetric structures were found. The conclusion provides reference for performance-based seismic design of asymmetric structures.

关 键 词：偏心结构 扭转 PUSHOVER 弹塑性反应 

分 类 号：TU352.11[建筑科学—结构工程]