塔式起重机起重臂变形的火焰矫正

Correction of deformation of lifting boom of tower crane by flame

塔式起重机的起重臂在生产中受诸多因素影响会产生变形，文中介绍起重臂变形的形式，以及起重臂下挠、上拱或旁弯的火焰矫正方法与注意事项。

Deformation of lifting boom of tower crane can occur by various factors during fabrication.Present paper describes the form of deformation of lifting boom,method of downward,upward or sideward correction by flame and issues where attention should be paid.