[1]吴庆雄,陈宝春,高桥和雄.新西海桥的非线性地震响应分析[J].地震工程与工程振动,2008,28(05):055-64.
 WU Qingxiong,CHEN Baochun,TAKAHASHI Kazuo.Nonlinear seismic analysis of New Saikai Bridge[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2008,28(05):055-64.
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新西海桥的非线性地震响应分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
28
期数:
2008年05期
页码:
055-64
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Nonlinear seismic analysis of New Saikai Bridge
作者:
吴庆雄1 陈宝春1 高桥和雄2
1. 福州大学土木工程学院, 福建 福州 350108;
2. 长崎大学工学部社会开发工学科, 日本 长崎
Author(s):
WU Qingxiong1 CHEN Baochun1 TAKAHASHI Kazuo2
1. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China;
2. Department of Civil Engineering, Faculty of Engineering, Nagasaki University, Nagasaki, Japan
关键词:
钢管混凝土拱桥地震响应分析新西海桥日本
Keywords:
concrete-filled steel tubular arch bridge(CFST arch bridge)seismic analysisNew Saikai BridgeJapan
分类号:
P315.952.2
摘要:
本文讨论了日本第一座公路钢管混凝土拱桥——主跨230m的新西海桥的非线性地震响应特性。采用三维有限元计算模型,用纤维单元法考虑钢管混凝土的材料非线性,用P-δ效应考虑几何非线性,讨论了在纵桥向地震作用、横桥向地震作用以及纵、横桥两方向同时作用情况下该桥的非线性地震响应特性和抗震性能。计算表明,在纵桥向地震作用时轴力的作用显著,拱脚附近产生的内力较大;而横桥向地震作用时轴力和面外弯矩作用显著,拱脚以及拱肋与桥面连接附近产生的内力较大;横向地震响应远大于纵向地震响应;应考虑纵、横桥向地震力共同作用的影响。
Abstract:
This paper examines the nonlinear seismic responses of New Saikai Bridge,which has a main span length of 230 m and is the first CFT arch bridge of highway bridges in Japan.Using a three-dimensional FE model,in which the fiber model is used to consider the material nonlinearity and the P-δ effect are used to consider the geometric nonlinearity.The nonlinear seismic characteristics and seismic performance of this bridge are examined in detail by subjecting the bridge to strong earthquakes in the out-of-plane direction,the longitudinal direction,or the combined out-of-plane and longitudinal directions.It is shown that:the axial forces are predominant when subjected to an earthquake in the out-of-plane direction;the axial forces and out-of-plane bending moments are predominant when subjected to an earthquake in the longitudinal direction;the responses subjected to earthquake in the out-of-plane direction are larger than those in the longitudinal direction;the effect of the combined out-of-plane and longitudinal excitations should be considered.

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备注/Memo

备注/Memo:
收稿日期:2007-6-19;改回日期:2007-8-7。
基金项目:福建省青年科技人才创新基金资助项目(2005J010)
作者简介:吴庆雄(1973- ),男,副研究员,工学博士,主要从事桥梁工程研究.E-mail:wuqingx@fzu.edu.cn
更新日期/Last Update: 1900-01-01