浅谈延伸桥面板无缝桥施工技术要点

 杨新战

(陕西高速公路工程咨询有限公司,陕西 西安  710061

  桥梁伸缩缝装置是桥梁结构中最易遭到损坏的部位。与路面衔接处不平整、不密实,或者伸缩缝受到堵塞失去伸缩功能,长期作用便产生错台、裂缝或坑槽等病害。雨水灌入造成桥台路基沉陷、行驶车辆冲击梁体,直接影响道路行驶的安全性、舒适性及桥梁使用寿命。本文以河北省高速公路石家庄至磁县(冀豫界)改扩建工程为依托,探讨延伸桥面板无缝桥施工技术,为类似桥梁施工提供借鉴。

关键词:延伸桥面板无缝桥施工技术

中图分类号U445          文献标识码A

Discussion the Key Points of the Construction Technology

 of Extension Bridge Panel and Jointless Bridge

YANG Xin-zhan

Shaanxi Expressway Engineering Consulting Co. Ltd.Xi'an 710061China

AbstractBridge expansion and contraction joint are the easiest damaged parts of the bridge structure. The uneven and uncompacted road connectingand the expansion joint without function for being blocking will cause slab of endscrackspot holes and many other diseases in the long term. The subsidence of abutment roadbed for the rain pouring in and the collision by vehicles will reduce the safetycomfort for driving and the life of bridges. Based on the highway reconstruction project from Shijiazhuang Hebei province to Ci contyJiYu area,this paper discussed the construction technology of extension bridge panel and jointless bridgeas the reference for the similar project.

Key wordsextension bridge paneljointless bridgeconstruction technology