基于Pushover原理的钢框架静力弹塑性分析  

Static elastoplastic analysis of steel frame based on Pushover principle

作　　者：汪金祥[1] 肖亚明[1] 刘顺[1] 董文秀[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2014年第10期1249-1253,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：Pushover分析是实现结构性态设计目标的方法之一,文章阐述了SAP2000中Pushover分析的基本原理,并根据我国最新的抗震规范,介绍了Pushover分析的计算步骤。在此基础上,利用1个钢框架结构实例进行说明,得出了包括底部剪力-顶部位移关系曲线、层间位移角和结构破坏塑性铰分布的分析结果,表明Pushover分析是当前对钢框架结构在罕遇地震下进行弹性塑性分析的有效方法。Pushover analysis is an important method to achieve the goal of performance-based seismic design .Based on the latest China code for seismic design ,the principles and procedures of SAP2000 Pushover analysis are reviewed .By means of SAP2000 ,a case of steel frame is presented .With the results of the base shear force-top displacement ,layer displacement angle and distribution of plastic hinges ,it is proved that the Pushover analysis is effective in the elastoplastic analysis of the steel frame structure under rare earthquakes .

关 键 词：推覆分析 静力弹塑性 需求谱 能力谱 性能点 

分 类 号：TU311.3[建筑科学—结构工程]