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济南市城市高架路,总长度5.6km,横跨多条城市主干道,最大跨度45m,桥宽18.50m,共9条匝道,3座钢桥,总投资5.4亿元,是该市重点工程和建国以来最大的市政工程。由于钢桥均采用了钢箱梁结构形式,既减少了现场工序间干扰,又节省了宝贵的施工时间,为全线14个月建成通车起到至关重要的作用。本文介绍该工程所采用的钢箱梁制作工艺,以期在类似项目中加以推广。
Jinan City elevated road, the total length of 5.6km, across a number of city main road, the maximum span of 45m, bridge width 18.50m, a total of 9 ramp, 3 steel bridges, a total investment of 540 million yuan, is the city’s key projects and the founding of the country Since the largest municipal project. Since the steel girders all adopt the structure of steel box girders, the interference between on-site procedures is reduced and valuable construction time is saved, which is of crucial importance for the completion and opening of the entire railway line in 14 months. This article describes the steel box girder manufacturing process used in the project, with a view to be promoted in similar projects.