西南交通大学学报 2007, 42(5) 526-530 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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本文关键词相关文章
钢筋混凝土拱桥
悬臂浇注
索力优化
模型试验
本文作者相关文章
李晓斌
杨永清
蒲黔辉
刘祖胜
PubMed
Article by LI Xiaobin
Article by YANG Yongqing
Article by PU Qianhui
Article by LIU Zusheng

钢筋混凝土拱桥悬臂浇注施工模型试验研究

李晓斌1, 杨永清1, 蒲黔辉1, 刘祖胜2

1. 西南交通大学土木工程学院, 四川成都, 610031;
2. 四川省交通厅公路规划勘察设计研究院, 四川, 成都, 610041

摘要

为验证钢筋混凝土拱桥悬臂浇注施工工艺的可行性和安全性,以白沙沟1#大桥为工程背景,进行了悬臂浇注施工全过程模型试验;测试了拱圈变形、控制断面应力和扣索索力,并与有限元法计算结果进行了比较,二者基本相符.结果表明,拱圈在施工过程中是安全的,钢筋混凝土拱桥悬臂浇注施工工艺可行.

关键词 钢筋混凝土拱桥   悬臂浇注   索力优化   模型试验  

Model Test of Cantilever Casting Construction of Reinforced Concrete Arch Bridge

LI Xiaobin1, YANG Yongqing1, PU Qianhui1, LIU Zusheng2

1. School of Civil Eng., Southwest Jiaotong University, Chengdu 610031, China;
2. Sichuan Province Communication Department Highway Planning, Survey, Design and Research Institute, Chengdu 610041, China

Abstract:

In order to demonstrate the feasibility of the construction technique of cantilever casting of a reinforced concrete arch bridge and the rationality of cable force adjustment and construction control,a model test of cantilever casting construction was made by taking the No.1 Baishagou bridge as project background.The displacement of model arch,the stress of control sections and the force of cables were tested.In addition,the test results were compared with calculated results based on the FEM(finite element method),showing reasonable agreement.The research results show that the model arch is safe during the construction,the construction technique of cantilever casting of reinforced concrete arch bridges is feasible,and the method of cable force optimization and adjustment is reasonable.

Keywords: reinforced concrete arch bridge   cantilever casting   optimization of cable force   model test  
收稿日期 2006-11-08 修回日期  网络版发布日期  
DOI:
基金项目:

西部交通建设科技项目(2003-318-78011)

通讯作者:
作者简介: 李晓斌(1982- ),男,博士研究生,研究方向为桥梁结构施工控制,电话:13084430034,E-mail:lixiaobin19990196@163.com

参考文献:
[1] 雷俊卿.桥梁悬臂施工与设计[M].北京:人民交通出版社,1999:216-219.
[2] MARSEL F.The construction of large-span concrete arch bridges with cantilevering method using temporary cable-stays[C]//Proceedings of the International Conference on Bridge.Croatia:Croatian Society of Structural Engineering,2006:775-783.
[3] 戴震番.克尔克桥的大跨度混凝土拱桥悬臂法施工[J].世界桥梁,1982(4):59-61.
[4] 范瑛,梅利芳.日本富士川混凝土拱桥的设计与施工[J].世界桥梁,2002(2):14-17.
[5] 孙玲.钢筋混凝土拱桥悬臂现浇施工控制分析[J].铁道建筑,2004(11):26-27.SUN Ling.Study on the control of reinforced concrete arch bridge constructed cantilever cast[J].Railway Engineering,2004 (11):26-27.
[6] 刘万忠.悬臂拼装钢筋混凝土拱桥的施工控制[D].长沙:湖南大学土木工程学院,2001:21-35.
[7] AU F T K,WANG Jiejun,LIU Gangdong.Construction control of reinforced concrete arch bridges[J].Journal of Bridge Engineering,2003,8(1):39-45.
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