顶升工艺在老桥改建升级中的应用  

THE APPLICATION OF JACKING TECHNOLOGY IN THE RECONSTRUCTION AND UPGRADING OF OLD BRIDGES

作　　者：谈珺 Tan Jun

机构地区：[1]上海顶新工程规划设计有限公司,上海200120

出　　处：《建筑技术开发》2022年第11期133-137,共5页Building Technology Development

摘　　要：随着城市路网的不断完善,许多道路改扩建项目都涉及既有桥梁的升级改造。如何合理地减少项目中的废弃工程、节约投资和缩短工期成为改建项目的核心问题。随着桥梁顶升技术的发展,给既有桥梁的改建方案提供了一些新思路。以上海某城市主干路既有跨线桥延伸改建项目为示例,通过对改建方案的分析及验算顶升后承载能力,探讨了桥梁顶升技术在老桥改建中的应用。With the continuous improvement of the urban road network,many road reconstruction and expansion projects involve the upgrading and reconstruction of existing bridges.The core issue of reconstruction projects is how to reduce abandoned projects,save investment and shorten construction duration reasonably.The development of bridge jacking technology provides some new ways for the bridge reconstruction.With the reconstruction project of an existing overpass bridge on an urban arterial road in Shanghai for a case study,this paper analyses the bridge reconstruction scheme,checks structure bearing capacity and discusses the application of jacking technology in the reconstruction of existing bridges.

关 键 词：桥梁改造 桥梁顶升 结构验算 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]