The invention discloses a method for dismounting, lengthening and mounting tower crane booms of a super high-rise building in the air. The method comprises the following steps: adjusting the heights of two tower crane booms; fixing the direction of the tower crane; disassembling the main hook and the counterweight, and recovering the host steel wire rope; hoisting by a tower crane boom; the tower cap is tightened in the direction of the cargo boom; the cargo boom is dismantled; splicing and lengthening the cargo boom; mounting the cargo boom in the air, detecting and the like. According to the method, the tower body is not dismantled, the tower crane dismantling process is reduced, the construction period can be shortened, mechanical lease and labor cost are saved, the overall construction cost is remarkably reduced, meanwhile, damage of wind power to the cargo boom and a building is avoided by tying wind cables at the front end and the rear end of the cargo boom and conducting wind vibration swing traction, and the construction efficiency is improved. And the position of the cargo boom is adjusted through the precise hand-drive block, so that the cargo boom is ensured to be accurately butted to the position of the slewing bearing.
超高层建筑塔吊起重臂空中拆卸、接长安装方法,该方法包括调整两个塔吊起重臂高度;固定塔吊方向;拆卸主钩、配重、回收主机钢丝绳;塔吊起重臂吊起;将塔帽向起重臂方向收紧;拆除起重臂;拼装接长起重臂;起重臂空中安装、检测等步骤;本发明通过不拆除塔身、减少塔吊拆除过程,能够节省施工工期,节约机械租赁及人工费用,显著降低整体施工成本,同时通过在起重臂的前端和后端系上揽风绳、风振摆幅牵引,避免风力对起重臂和建筑物的破坏,并通过精准的手动葫芦调整起重臂位置,确保起重臂准确对接到回转支承位置。
Overhead dismounting and lengthening mounting method for tower crane boom of super high-rise building
超高层建筑塔吊起重臂空中拆卸、接长安装方法
2025-02-18
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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