大跨度双曲拱桥上部结构拆除施工技术

Dismantling construction technique of long-span double-curved arch bridge superstructures

在桥梁拆除中,拱桥相比其他桥型更容易发生失稳破坏,施工存在很大难度和安全风险。文章结合拆桥工程实例,阐述大跨度双曲拱桥上部孔跨结构拆除的技术方法,通过选择合理的方案,既实现高效、安全的施工需要,又有效降低对周边环境的影响,节省工程费用。以期为类似工程提供参考。

In bridge dismantlement,arch bridges are more prone to instability and damage than other types of bridges,and there are great difficulties and safety risks in construction.By combining the example of the dismantlement project,this paper introduces a technical method for the dismantling of the superstructures of longspan double-curved arch bridges.By choosing reasonable solutions,the demands for highly efficient and safe construction are realized,while also reducing the infl uence on the surrounding environment and saving project costs.This can serve as reference for similar projects.