京沪高速铁路96m系杆拱桥施工关键技术

铁路下承式尼尔森体系钢管混凝土系杆拱桥,具有造型美观,建筑高度低,跨越能力强,外部静定结构,桥梁竖、横向刚度大,满足高速铁路高速、安全、平稳、舒适的运营要求。结合后八丁特大桥工程实践,介绍了膺架设计和搭设、系梁混凝土、拱肋、钢管混凝土、吊杆等方面施工工艺和方法,总结了施工中的注意事项,对类似工程具有较好的指导和借鉴意义。

Construction Technology for Beijing-shanghai High-speed Railway 96m Tied Arch Bridge

Railway through Neilson system for steel tube concrete arch bridge,with its scenic appearance,low building height,strong spanning ability,external static structure,bridge vertical,lateral stiffness,can meet the high speed,safe,stable,comfortable operation requirements of high speed railway.In combination with Houbading Bridge engineering practice,the paper introduces the design and erection of scaffolding,tie beam,arch rib concrete,concrete filled steel tube,rod and among other construction processes and methods,and summarizes the matters bearing attention in the construction for guidance and reference of similar engineering.