主塔横梁支架整体落架及纵移施工技术

Construction Technology for Overall Lowering and Longitudinal Displacement of the Main TowerCrossbeam Support

鳊鱼洲长江大桥主航道桥4号主塔下横梁高8~10m,横桥向长36m,顺桥向宽10m,采用整体落架及纵移施工技术进行下横梁支架拆除。该施工技术的成功应用,不仅大大节约了常规拆除的成本,而且解决了空间上支架拆除的安全风险,从安全和效益方面都具有很高的推广意义,为后续类似工程提供宝贵的经验。

The lower crossbeam of the No.4 main tower of the main channel bridge of the Banyuzhou Yangtze River Bridge is 8m to 10m high,with a transverse length of 36m and a longitudinal width of 10m.The lower crossbeam support was removed using the overall lowering and longitudinal displacement construction technology.The successful application of this construction technology not only greatly saves the cost of conventional demolition,but also solves the safety risks of dismantling supports in space.It has high promotion significance in terms of safety and efficiency,providing valuable experience for similar projects in the future.