曾家岩嘉陵江大桥跨越既有轻轨线路钢桁梁施工支架设计

The Design About Steel Truss Beam Construction Bracket for Crossing Existing Light Rail Line of Zengjiayan Jialing River Bridge

依托重庆曾家岩嘉陵江大桥钢桁梁跨越轨道2号线曾家岩车站为实例,研究了钢桁梁安装跨越既有轨道线路施工方法,提出了轨道停运期间,采取钢桁梁悬臂拼装外挂架法施工技术,解决了钢梁安装与轨道线路运营互相干扰的难题,取得了较好的经济和社会效益。

Based on the line#2Zengjiayan Station for steel truss beam crossing track of Zengjiayan Jialing River Bridge in Chongqing city,this paper makes a research on construction method about crossing existing line for steel truss beam installing,and puts forward a construction technology called Bracket-Hanging Outside for the steel truss beam erection by protrusion when the track is out of service,which solved the problem of mutual interference between installation of steel truss beam and operation of track line,achieving great economic and social benefits.