跨航道系杆拱桥整体吊装拆除施工

Demolition Construction of Tied Arch Bridge Crossing Channel with Integral Lifting Method

近年来我国部分航道桥梁已不能适应目前的道路交通发展和航道通航能力的要求,大量桥梁面临拆除重建的现实。整体吊装桥梁拆除方法具有工期短、对通航影响小的特点,非常适合航道桥梁的拆除要求。以无锡新虹桥的拆除为例,研究了整体吊装法拆除方案、关键技术问题和施工方法。

A lot of bridges crossing channels can＇t meet the traffic and navigation capacity requirements in these years in China,which are going to be dismantled. Integral lifting method well fits the channel bridge demolition,because it can shorten project time and the disturbance to the navigation. Based on Xinhong Bridge demolition in Wuxi,this paper discusses the demolition scheme,key technology and construction process.