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由于塔式起重机的起升钢丝绳直径比较大,自身重量也比较大,有大的下垂长度,使塔机在施工中容易发生相互干涉,有时也会与建筑物发生干涉。介绍了大型水平变幅塔式起重机起升钢丝绳托绳装置的结构特点和安装调试要求,提出对于大型水平变幅塔式起重机在大型工程施工中可以通过托绳装置减少起升钢丝绳在起重臂上的下垂高度,从而避免由此引起的安全事故的发生。经实践证实,托绳装置可有效减少塔式起重机的架设高度,节省施工成本,提高施工效率。
Due to the tower crane hoisting rope diameter is relatively large, its own weight is also relatively large, there is a large length of the sagging, tower crane in the construction prone to interfere with each other, and sometimes interfere with the building. The structural characteristics and installation and commissioning requirements of hoisting ropes for large-scale horizontal tower crane are introduced. It is proposed that for large-scale tower crane with large amplitude, hoisting ropes may be reduced by hoisting ropes during construction of large-scale projects. On the sagging height, thereby avoiding the resulting security incidents. The practice proved that the rope supporting device can effectively reduce the tower crane erection height, saving construction costs and improve construction efficiency.