| 摘要 |
PROBLEM TO BE SOLVED: To provide a raising method and a device, and to provide a new steel tower construction method and a device, capable of executing work in a steel tower site, capable of shortening time up to completion from a start of raising, and capable of reducing the work in a steel tower upper part.SOLUTION: The raising method of an existing steel tower includes the steps of assembling a column in the steel tower site, connecting a steel tower and a lifting device positioned so as to surround the periphery of the column by a gripping device, cutting the steel tower under a connection point of the gripping device and the steel tower, pushing up the cut steel tower by lifting the lifting device along the column by driving a driving device and assembling a raising material in the pushed-up steel tower. A raising device is also provided. A new steel tower construction method and a device are provided. |
