斜拉桥与引桥地震碰撞影响因素研究

英文篇名：Earthquake impact influence factors for a cable-stayed bridge and its approach bridge
中文刊名：振动与冲击
英文刊名：Journal of Vibration and Shock
作者：张文学 ; 王景景 ; 鲍艳
英文作者：ZHANG Wen-xue ; WANG Jing-jing ; BAO Yan(College of Architecture and Civil Engineering ; Beijing University of Technology ; Beijing 100124 ; China)
中文关键词：斜拉桥 ; 引桥 ; 重心高度 ; 场地类型 ; 碰撞
英文关键词：cable-stayed bridge ; approach-bridge ; height of gravity center ; site-type ; impact
出版日期：2012-12-15
机构：北京工业大学建筑工程学院;
年：2012
期：23
出版单位：振动与冲击

摘要

针对目前对大跨度斜拉桥抗震性能的研究多只以主桥为分析对象,而对斜拉桥与引桥之间碰撞问题的研究相对较少这一现象,以某九江大桥为例建立了斜拉桥与引桥之间的碰撞分析模型,分别对场地类型、斜拉桥重心高度和引桥结构形式等影响斜拉桥主桥与引桥之间碰撞效应的主要因素进行的系统分析,得到了一些有意义的结论,可为类似工程的抗震设计提供参考。
At present,long span cable-stayed bridge seismic performance study only takes its main bridge as an analysis object.There are few reports about earthquake impact between a cable-stayed bridge and its approach-bridge.Taking a Jiu-Jiang big bridge as an example,the impact analysis model between a cable-bridge and its approach-bridge was built.The impact influence factors between them were systematically studied.The influence factors included site-type,height of gravity center,approach-bridge structure form.Some significant conclusions were obtained.They provided a reference for similar project a seismic designing.

引文

[1]范立础.桥梁抗震[M].上海:同济大学出版社,1997.
    [2]王军文.非规则梁桥在地震作用下的碰撞效应及防落梁措施研究[D].上海:同济大学,2005.
    [3]王东升,冯启民,凌贤长,等.桥梁非线性地震反应分析若干问题研究现状[J].地震工程与工程振动,2002,22(1):61-66.
    [4]Nazmy A S,Abdel-Ghaffar A M.Non-linear earthquake-response analysis of long span cable-stayed bridge:theory[J].Earthquake Engineering and Structural Dynamics,1990,19:45-62.
    [5]Chau K T,Wei X X,Guo X,et al.Experimental and theoretical simulations of seismic poundings between two adjacent structures[J].Earthquake Engng.Struct.Dyn.,2003,32:537-554.
    [6]Chau K T,Wei X X.Pounding of structures modelled as non-linear impactsof two oscillators[J].Earthquake Engng.Struct.Dyn.,2001,30:633-651.
    [7]王东升,杨海红,王国新.考虑邻梁碰撞的多跨长简支梁桥落梁震害分析[J].中国公路学报,2005,18(3):54-59.
    [8]李建中,范立础.非规则梁桥纵向地震反应及碰撞效应[J].土木工程学报,2005,38(1):84-90.
    [9]东升,冯启民,王国新.基于直杆共轴碰撞理论的桥梁地震反应邻梁碰撞分析模型[J].工程力学,2004,21(2):157-166.
    [10]王东升,王国新,冯启民.桥梁结构地震反应邻梁碰撞分析等效刚体模型[J].工程力学,2004,21(4):81-85.