塔式起重机工作时,在其变幅平面内的顶部偏位移对于验算抗倾覆稳定性、塔机动特性计算、塔身校核以及宏观变形测量和判断等方面都有着密切的关系,因而很有计算的必要。但目前尚缺乏简便而普遍公认的合理计算方法。本文提出一种较为切实可行的方法和几个理论计算公式。这种方法是首先选定一段塔身作为压杆模型,根据压杆纵弯曲同时承受横弯曲的载荷条件,直接由微分 Tower cranes working, the top of the plane in the amplitude of the partial displacement of the anti-overturning stability checking, calculation of tower maneuverability, tower body check and macro deformation measurement and judgment and so has a close relationship, it is calculated Necessary. However, there is a lack of simple and generally accepted reasonable calculation method. This article presents a more practical method and several theoretical formulas. This method is to first select a section of the tower as the pressure rod model, according to the vertical bending of the rod while under lateral bending load conditions, directly from the differential