科技创新与应用2024，Vol.14Issue(17)：177-180,4.DOI:10.19981/j.CN23-1581/G3.2024.17.042
匝道桥单点连续顶推施工技术研究
姚伟 1王毅 1李英森2
作者信息
- 1. 昭通市交通建设工程质量安全监督局,云南 昭通 657000
- 2. 中国市政工程西南设计研究总院有限公司,成都 610081
- 折叠
摘要
Abstract
Incremental launching method is a commonly used construction method in the upper part of the bridge,which has the advantages of strong spanning ability,not affecting the traffic under the bridge,suitable for high pier operation and so on.Taking the ramp bridge of an existing expressway as an example,this paper introduces the construction method of the combination of hoisting and single point continuous jacking of the bridge.In the process of jacking,some control measures are taken,such as central axis deviation,local instability,vertical alignment of beam,stress monitoring,lateral displacement instability,pre-camber and so on.The strength and stiffness of guide beam and steel box girder meet the requirements,thereby can be used to guide bridge construction and provide reference for similar bridge construction.关键词
匝道桥/顶推施工/钢箱梁/桥梁施工/施工方法Key words
ramp bridge/incremental launching method/steel box girder/bridge construction/construction method分类
交通工程引用本文复制引用
姚伟,王毅,李英森..匝道桥单点连续顶推施工技术研究[J].科技创新与应用,2024,14(17):177-180,4.
