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) ›› 2001, Vol. ›› Issue (4): 11-15.

• • 上一篇    下一篇

大跨度钢管砼拱桥砼时变模式分析

张建民1,郑皆连2,秦荣3   

  1. 1.华南理工大学土木系 广东广州510641;2.广西交通厅 广西南宁530001;3.广西大学土木系 广西南宁530004
  • 收稿日期:2001-12-02 出版日期:2001-12-20 发布日期:2016-07-12
  • 基金资助:
    广西科技攻关计划资助项目(桂科攻0012018)

Time-dependent behavior analysis of long span CFST arch bridge

ZHANG Jian min1,ZHEN Jie lian2,QINRong3   

  1. 1.South China University of Technology,Guangzhou 510641,China;2.Guangxi Communication Department,Nanning 530001,China;3 Guangxi University,Nanning 530004,China
  • Received:2001-12-02 Online:2001-12-20 Published:2016-07-12

摘要: 采用《规范》[1] 提供的徐变系数 ,结合按龄期调整的有效模量法 ,编制了相应的计算程序 .针对主跨度为349m的南宁永和大桥变高度截面钢管砼桁式拱桥进行了数值计算 ,计算结果表明 ,砼的徐变能在一定程度改善钢管砼拱桥结构的受力状况 ,钢管砼拱桥的内力计算应考虑砼徐变的影响

关键词: 钢管砼, 拱桥, 徐变系数

Abstract: According to the age adjusted effective modulus method and the creep coefficient provided by the Rule ,a computing program is presented in this paper.Being aimed at the Yonghe bridge in the city of Nanning, a truss arch bridge with concrete filled steel tubules(CFST) and with a main span of 349m, a numerical calculation is carried out .The results shows that the creep effect can improve the internal force and deformation state of CFST arch bridge to some extent, the redistributed internal force is considerably large.

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