钢筋混凝土拱桥悬臂浇注施工模型试验研究.pdf

第 42 卷第 5 期西南交通大学学报 Vol. 42
2∞7 年 10 月 JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY Oct. 2007
文章编号: 0258-2724 ( 2∞7) 05-0526-05
钢筋混凝土拱桥悬臂浇注施工模型试验研究
李晓斌杨永清蒲黔辉刘祖胜 2
(,四川成都 61 ∞131; 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,以自沙沟 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
,拱困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:钢筋棍凝土拱桥;悬臂浇注;索力优化;模型试验
中图分类号: U445. 466; 文献标识码:A
Model Test of Cantilever Casting Construction of
Reinforced Concrete Arch Bridge
U Xiaobin 1 , YANG Yongqini , PU Qianhui1 , UU Zwheni
(1. School of Civil Eng. , Southwest Jiaotong University , Chengdu 61 ∞31 , China; 2. Sichuan pro飞rince CornmUI让ω,tion
Department Highway Pl缸ming , Survey , Design and Researoh Institute , Chengdu 61α>4 1 , 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 c田ting construction was made by taking the No. 1 Baishagou bridge 田 project
background. The displacement of model arch , the stress of control sections and the force of cables were
tested. In addition ,也e test results pared with calculated results based on 出è FEM (finite
element method) , showing reasonable agreement. Th