Construction Methods on Mechanical and Material's Deformation Control during Assembling and Erecting Cup type Transmission Tower

摘要

Take a 1000kV Cup-Type tubular steel test tower as research object, and it is the first one of this type used in heavy ice area. Research on the assembly load's affect to tower structure was made. The process of assembling tower using suspend guyed pole was analyzed with Finite Element Method. Structures overhanging the tower body, such as cross arms and bracket of earth wire, could be assembled in different ways. The different affect to the built structure corresponding to different assembly method was researched. The objective is to make the deformation of the structure minimum. It was indicated that, reinforce the K-joint by cable and the deformation of structure reduced obviously. The reinforce method is simple and efficient, and ensure the cross arm assembling smoothly. It is avail to improve the assemble quality of the whole structure.