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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

25卷

期数:

2008年02期

页码:

79-84

栏目:

出版日期:

2008-06-20

文章信息/Info

Title:

Horizontal Seismic Response Analysis of Continuous Rigid Frame Bridges Considering Structure-water Interaction

作者:

胡大琳¹,黄小国^1,2,赵国辉¹,戴攀¹,刘永健¹

1.长安大学公路学院,陕西西安710064;2.同济大学桥梁工程系,上海200092

Author(s):

HU Da-lin¹, HUANG Xiao-guo^1,2, ZHAO Guo-hui¹, DAI Pan¹, LIU Yong-jian¹

1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Department of Bridge Engineering, Tongji University, Shanghai 200092, China

关键词:

连续刚构桥;  地震反应;  桩-土相互作用;  结构-水相互作用;  反应谱;  时程分析

Keywords:

continuous rigid frame bridge;  seismic response;  pile-soil interaction;  structure-water interaction;  response spectrum;  time-history analysis

分类号:

TU311.3

DOI:

-

文献标志码:

A

摘要:

以三水二桥为实例,采用结构有限元法对具有单肢薄壁墩的连续刚构桥进行水平地震反应分析,分析时考虑了桩-土相互作用和结构-水相互作用以及不同水深对结构地震反应的影响。计算结果表明:桩-土相互作用和结构-水相互作用对该种连续刚构桥的抗震是不利的; 按反应谱法计算所得桥墩的横向内力较大,按时程分析法计算所得主梁内力和桥墩的纵向内力较大; 连续刚构桥抗震设计时应采用反应谱法和时程分析法相结合进行分析,所得的成果和分析结论可供同类桥抗震分析参考。

Abstract:

Taking Sanshui 2nd Bridge as an example, horizontal seismic response of continuous rigid frame bridges with single thin piers was studied. Pile-soil interaction and structure-water interaction were considered, and seismic response affected by different water depths was analyzed. The calculated results indicate that it is detrimental to continuous rigid frame bridges when pile-soil interaction and structure-water interaction are considered. Transverse internal force of bridge piers calculated with response spectrum method is bigger; internal force of main girder and longitudinal internal force of bridge piers calculated with time-history analysis method are bigger. The analysis method combining response spectrum with time-history analysis method will be used in seismic design of continuous rigid frame bridges. The results and analysis conclusions provide a reference of seismic analysis to continuous rigid frame bridges.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2008-05-08
基金项目:交通部应用基础研究项目(2006 319 812 130)
作者简介:胡大琳(1959-),男,陕西蓝田人,教授,工学博士,E-mail:dlhu@gl.chd.edu.cn。

常用功能

更新日期/Last Update: 2008-06-20