下承尼尔森体系钢管混凝土提篮式系杆拱桥在铁路客运专线上的应用设计

铁路大跨度下承尼尔森体系钢管混凝土提篮式系杆拱桥造型美观,可一孔简支、主桥短,建筑高度低、跨越能力强,结构的竖、横向刚度大,适应整体桥面、对轨道的应对性能好,造价经济,施工养护方便,设计成系列孔跨应用到铁路客运专线前景广阔,经济和社会效益显著。

Application Design of Concrete-Filled Steel Tube Basket Handle Through Tied Arch Bridge of Nielsen System for Passenger Dedicated Railway Line

The long span concrete-filled steel tube basket handle through tied arch railway bridge of Nielsen System has distinctive features of aesthetic configuration and can be designed as a single-span bridge that will be simply supported.The length of main bridge of the type of the arch bridge is short,building height is low,spanning capacity is great,vertical and lateral rigidity of structure is strong,and the bridge is also characterized by sound accommodation to monolithic deck,good handling performance of rail track,cost-effectiveness,easy construction and maintenance.If the bridge is designed to have serial spans of different length for selection and applied to the passenger dedicated railway line,it will have wide vista of application and the economic and social benefits will be significant.