钢筋混凝土双柱桥墩抗震能力Pushover分析  

Pushover analysis of the seismic capacity of reinforced concrete double-column bridge piers

作　　者：王红伟[1] 刘建新[1] 

机构地区：[1]上海师范大学建筑工程学院,上海201418

出　　处：《上海师范大学学报（自然科学版）》2013年第1期31-36,共6页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海师范大学土木实验示范中心(B-7603-09-JWP804)

摘　　要：介绍了Pushover分析方法的基本原理及实施步骤.通过一个算例分析,针对不同侧向力分布模式、不同高度、不同纵向配筋率的双柱桥墩进行Pushover分析.结果表明:对于普通简支梁双柱墩,高度比较低,不同侧向力加载模式对Pushover分析结果影响不大,随着桥墩高度的增加,位移延性系数降低,桥墩延性随着纵向配筋率的提高而降低.This article deacribes the basic principle and implementation steps of the Pushover analysis method.By a numerical example,RC double-column piers with different lateral force distribution pattern,different heights and different reinforcement ratio were analyzed.The results show that the analysis results for lower piers of simple supported beam bridges are approximately identical under different lateral force distribution,while with the increase of pier height and longitudinal ratio of reinforcement,the displacement ductility factor is reduced.

关 键 词：PUSHOVER分析 双柱桥墩 侧向力分布 墩高 配筋率 抗震能力 

分 类 号：P315.9[天文地球—地震学]