沪昆客专北盘江特大桥设计与施工方案

沪昆客专长沙至昆明段北盘江特大桥主跨采用世界最大跨度的445m劲性骨架钢筋混凝土拱桥结构,也是客运专线铁路中跨度最大的拱桥结构。由于高速铁路桥梁对刚度和线路平顺性的特殊要求,对设计与施工提出了极高的标准,系统介绍了该桥的设计和施工方案。

The Design and Construction Scheme of Beipanjiang Bridge on Shanghai-Kunming Special Passenger Line

The main span of Beipanjiang Bridge which is located in Changsha-Kunming section of Shanghai-Kunming special passenger line adopts a stiff skeleton reinforced concrete arched bridge structure with a 445 m span,the largest span in the world,it is also the largest arched bridge structure in special passenger lines.The standard of design and construction is very high because of the special requirements of high speed railway bridges for the stiffness and smoothness.This paper makes a systematic introduction to the design and construction schemes of the project of Beipanjiang Bridge.