论文部分内容阅读
苏通大桥北主墩基础位于长江深泓区,江面宽阔,通航繁忙,流速最大至3 m/s,属潮汐影响区域,采用超大型双壁钢吊箱作为基础承台混凝土干施工的围护结构,钢吊箱为哑铃形异型结构,总长117.95 m,宽52.30 m,高16.50 m,总重约6 180 t,如此大尺寸、大重量的超大型钢吊箱结构设计施工是一个前所未有的难题,本文将详细介绍该墩钢吊箱的设计与施工技术。
The base of the north main pier of Sutong Bridge is located in the deep area of the Yangtze River. The river is wide and the navigation is very busy with a maximum flow rate of 3 m / s. It belongs to the tidal area and adopts an oversized double-wall steel hanging box as the foundation support Structure, the steel hanging box is a dumbbell shaped structure with a total length of 117.95 m, a width of 52.30 m and a height of 16.50 m, and a total weight of about 6 180 t. The design and construction of such a large-size and large-weight steel cage is an unprecedented challenge. This article will detail the design and construction of the pier steel coffer.