利用Push-over方法评价桥梁的抗震安全性  

Estimated seismic vulnerability of bridges by push-over method

作　　者：王东升[1] 翟桐[1] 郭明珠[1] 

机构地区：[1]中国地震局工程力学研究所,黑龙江哈尔滨150080

出　　处：《世界地震工程》2000年第2期47-51,共5页World Earthquake Engineering

基　　金：中国地震局"九五"重点课题!9505020203

摘　　要：建立了桥梁破损极限状念的定量准则，对Pusn－over方法涉及的若干技术环节，包括约束钢筋混凝土截面弯矩曲车关系、位移延性系数与曲李延性系数的关系以及评价反应谱进行了分析，并给出了一个利用Push－over方法评价桥梁抗震安个性的应用实例。Quantitative estimates of damage degree of bridges are presented. Some techniques of Push -over method are discussed briefly, which include moment-curvature characteristics of confined reinforced concrete cross section, formulas between displacement ductility factor of bridge structure and curvature ductility factor of section, and response spectra used in seismic vulnereability assessment of bridges. As an example, seismic vulnerability assessment of a real bridge by push-over method is illustrated.

关 键 词：Push-over法 桥梁 抗震 安全性 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]