大跨径型钢贝雷支架在跨箱涵沟渠现浇箱梁施工中的应用及验算

Application and Checking Calculation of Large-span Section Steel Bailey Support in Cast-in-situ Box Girder Construction of Cross Box Culvert Ditch

近年来,随着市政道路的快速发展,各种形式的上跨、下穿立交桥已成为市政道路的重要结构。立交桥多设计为平曲线的现浇箱梁,旨在能够满足道路设计施工要求,本文以市政立交桥为背景,总结大跨径型钢贝雷支架在上跨现有箱涵沟渠的现浇箱梁施工中的设计、验算及施工方法,为今后类似工程施工借鉴经验。

In recent years, with the rapid development of municipal roads, various forms of overpass and underpass overpass have become an important structure of municipal roads.Most overpasses are designed as cast-insitu box girders with horizontal curves, which aims to meet the requirements of road design and construction.Taking the municipal overpass as the background, this paper summarizes the design, checking calculation and construction methods of long-span section steel Bailey support in the construction of cast-in-situ box girder crossing the existing box culvert ditch, so as to provide reference experience for the construction of similar projects in the future.