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针对武汉二七长江大桥5号主塔施工用C7050型塔机在拆除过程中面临附墙杆件吊装困难、塔机降塔时其起重臂与主塔的塔身发生干涉、汽车起重机的吊装作业幅度和范围受塔身和斜拉索的影响、高空作业等难题,结合有限的作业条件,经过方案比选,提出了利用塔机自身起吊和降塔的性能并借助一台汽车起重机进行非常规拆除的方法。
In the dismantling process, the C7050 tower crane used for the construction of the main tower of No. 5 Yangtze River Bridge in Wuhan is faced with the difficulty of hoisting the wall-attached rods. When the tower crane drops the tower, its crane arm interferes with the tower of the main tower and the crane of the truck crane The scope and scope of the operation are affected by the tower and the stay cables and the problem of aerial work. Combining with the limited operating conditions, through the comparison and selection of the schemes, it is proposed to utilize the tower crane itself to lift and lower the tower and make use of a crane Dismantling method.