中文核心期刊
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中国科技核心期刊
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Journal of Chongqing Jiaotong University(Natural Science)

Journal of Chongqing Jiaotong University(Natural Science) ›› 2008, Vol. 27 ›› Issue (2): 200-203,247.

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Study on Internal Force Distribution Method of Co-Section for Arch Bridges Strengthening

HUANG Hai-dong1,2, XIANG Zhong-fu2, LIU Jian-feng3, LIN Xiao-feng2   

  1. 1. School of Civil Engineering & Architecture, Guangxi University, Guangxi Nanning 530004, China;
    2. School of Civil Enginering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
    3. Transportation Bureau of Ba-nan, Chongqing 401320, China
  • Received:2007-03-15 Revised:2007-05-10 Online:2008-04-20 Published:2016-11-14

基于组合截面内力分配的拱桥加固内力计算方法

黄海东1,2, 向中富2, 刘剑锋3, 林晓锋2   

  1. 1. 广西大学 土木建筑学院, 广西 南宁 530004;
    2. 重庆交通大学 土木建筑学院, 重庆 400074;
    3. 重庆市巴南区交通局, 重庆 401320
  • 作者简介:黄海东(1978-),男,辽宁清原县人,讲师,博士研究生,主要从事桥梁加固理论研究与工程应用。E-mail:hhdhao@163.com;手机:13996070725。

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Abstract: It's common to strengthen arch bridges by enlarging section, and the combined section belongs to the "Two-Stage Loading Composite Structure" in mechanics of characteristics. The internal force distribution method of co-section is ratiocinated on the base of assumption of the plane section, and is used in the design of arch bridges strengthening. It can be reference for the same kind of bridges in calculation and strengthening design.

Key words: arch bridges strengthening, co-section, internal force distribution, calculating method

摘要： 增大截面法是加固拱式桥的常用方法,加固后的新、老拱圈截面在受力性能上属于"二次受力叠合结构",从平截面假定出发,推导了组合截面内力分配公式,并将此方法应用于某桥加固内力计算中,对于同类型桥梁的加固设计计算具有一定的参考价值。

关键词: 拱桥加固, 组合截面, 内力分配, 计算方法

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