非标准条件下塔机的拆卸

根据回转自升式塔机在狭小的拆卸现场条件，先卸掉塔机配重、起重臂及其辅件，依据力矩平衡原理，可利用卷扬机和导轨将标准节落于地面指定位置。

IRREGULAR DISASSEMBLY OF TOWER CRANE

Firstly,the balance weight,crane boom and auxiliaries are to be dismantled in a regular order and then put down to the building roof or ground surface,respectively.The way of dismantling the crane boom and auxiliaries is just like hoisting the balance weight under eccentric condition.Secondly,a support is to be erected with scaffold and a hoister used together with balance boom to let down the crane main winch to ground level.Finally,the standard tower parts are to be disassembled by means of the hoister guide rails.