连续梁桥抗震性能分析与评价  

Analysis and Evaluation of Seismic Behavior of Continuous Girder Bridge

作　　者：赵旭峰[1] 王春苗[2] 

机构地区：[1]中国国际工程咨询公司,北京100048 [2]北京城建设计研究总院,北京100037

出　　处：《铁道工程学报》2009年第5期36-39,共4页Journal of Railway Engineering Society

摘　　要：研究目的:为满足《铁路工程抗震设计规范》中对连续梁桥进行三水准抗震设计的要求,本文通过具体算例对连续梁桥进行多遇地震弹性、罕遇地震弹塑性地震反应分析,分别从强度、延性和抗剪等方面实现对连续梁桥抗震性能的总体评价。研究结论:提出了连续梁桥在多遇地震作用下强度及稳定性验算方法、罕遇地震作用下延性验算方法,弥补了《铁路工程抗震设计规范》计算方法不能详细反映此类桥梁抗震性能的不足,为铁路连续梁桥抗震性能评价和抗震设计提供了理论基础。Research purposes： In order to satisfy the demand of seismic design of continuous girder bridge stipulated in the ＂ Seismic Design Code for seismic response analysis under continuous girder bridge （main in strength, ductility and shear Railway Engineering＂, based on one calculation example, this paper makes elastic frequent earthquakes and elastio - plastic analysis under severe earthquakes for a railway span： 48：80：48 m） and evaluates the seismic behavior of the continuous girder bridge resistance. Research conclusions：The checking calculation methods for the strength and stability of the continuous girder bridge under frequent earthquakes and the ductility of the continuous girder bridge severe earthquakes are proposed, which cover the shortage of the Code and provide the theoretical basis for the seismic design and evaluation of the seismic property of the continuous girder bridge.

关 键 词：连续梁桥 地震反应 弹塑性分析 抗震性能评价 

分 类 号：U44[建筑科学—桥梁与隧道工程]