中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (2): 185-189.DOI: 10.3969/j.issn.1674-0696.2011.02.01

• •    下一篇

非规则连续梁桥非线性地震反应分析

耿江玮1,朱东生1,向中富1,包桂钰2   

  1. 1.重庆交通大学土木建筑学院, 重庆400074; 2.甘肃长达路业有限责任公司, 甘肃兰州730030
  • 收稿日期:2010-11-25 修回日期:2011-01-17 出版日期:2011-04-15 发布日期:2015-03-12
  • 作者简介:耿江玮(1986 — ),男,甘肃庆阳人,硕士研究生,主要从事桥梁抗震及结构分析研究。E-mail:gengjiangwei1015@126.com。
  • 基金资助:
    甘肃省交通厅交通建设科技项目(GJR200806)

Nonlinear Seismic Response Analysis of Irregular Continuous Bridge

GENG Jiangwei1, ZHU Dongsheng1, XIANG Zhongfu1, BAO Guiyu2   

  1. 1.School of Civil Engineering&Architecture, Chongqing Jiaotong University, Chongqing 400074, China;2.Gansu Provincial Changda Expressway Co.,Ltd., Lanzhou 730030,Gansu, China
  • Received:2010-11-25 Revised:2011-01-17 Online:2011-04-15 Published:2015-03-12
  • About author:Supported by National Basic Research Program of China (No.2004CB619105)
  • Supported by:
    国家重点基础研究发展计划资助项目(2004CB619105)

摘要: 采用纤维模型分析方法,对一座墩高差异较大的非规则等跨连续梁桥进行了全桥的线性和非线性时程地震 反应分析,并比较了P-效应对该桥地震反应的影响以及线性与非线性结果的差异。分析结果表明:对于这类桥 墩刚度差异较大的连续梁桥,刚度较大的矮墩是其抗震的薄弱部位,地震中损伤相对较严重;墩高较小时,P-效 应对分析结果的影响较小,线性与非线性分析结果之间差异较大。

关键词: 非规则连续梁桥, 线性, 非线性, 地震反应, P-效应

Abstract: The linear and nonlinear time history seismic response of an irregular continuous bridge with the same span was analyzed by fiber model method; the impact of Peffect on seismic response of the bridge and differences between linear and nonlinear results were analyzed.The results showed that the short pier with higher stiffness was weak in earthquake resistance and it could be severely damaged in earthquake; the impact of Peffect on the short pier was insignificart; linear results were different from nonlinear results.

Key words: irregular continuous bridge, linear, nonlinear, seismic response, Peffect

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