城市高架桥调坡顶升改造技术要点

Technology Points of the Slope Adjustment and Jacking Reconstruction for Urban Viaducts

城市快速路网建设中常涉及到新老高架连接处落地段如何改造的问题,为既避免资源浪费、缩短工期、节约投资,桥梁整体调坡顶升应运而生。整体调坡顶升涉及反力基础、千斤顶合理配置、随动顶的使用、限位装置布设等关键技术,详细介绍了城市高架桥调坡顶升改造技术要点,可为类似工程提供参考。

The construction of urban expressway network often involves the problem of how to transform the sections where the new and old viaducts connect.In order to avoid resource waste,shorten the construction period and save investment,the overall slope adjustment and jacking of bridges emerge as the time requires.The integral slope adjustment and jacking involves key technologies such as foundation reaction,reasonable configuration of jack,use of follow-up roof,layout of limiting device,etc.The key points of slope adjustment and jacking reconstruction of urban viaducts are introduced in detail,which can provide reference for similar projects.