空中自行车道地铁上盖超大跨度钢箱梁施工技术

Technology for Construction of Large Span Steel Box Girder in the Air Lane of Bicycle Above the Subway Being Built

空中自行车道作为城市慢行系统的一部分,是典型的市政工程,其结构为连续梁桥。施工过程中沿路路况褒贬不一,考虑到钢箱梁以及汽车吊本身质量,对路基承载力要求较高,在遇到路基承载力较差的特殊路况时需要采用特殊的施工方法。以厦门云顶路自行车快速道示范段工程为依托,通过三维建模模拟分析以及现场实际施工应用,总结出适用于空中自行车道的路基承载力较差情况下的施工技术。

The air lane of bicycle is a typical municipal work as it is a part of urban slow motion system,whose structure base on continuous bridge.The condition of the road along the urban road is in a good range of quality.The constraction of steel box girder need high bearing capacity of roadbed Considered there is a large weight with truck crane and steel box girder.It is need to have a special scheme to handle the problem of low bearing capacity of roadbed.Relying on the building of The demonstration project of air lane of bicycle on Yunding Road Xiamen,the article concludes a new method used for situation of low bearing capacity of roadbed during the constraction of air lane of bicycle by analysis of 3 d modeling and application in practice construction.