Full-scale Experimental and Theoretical Research for Double-circuit and Single πAccess Line of the 110STJ New Type Tower

摘要

In order to solve the resource shortage problem of the power transmission corridors, a new design of power transmission line is necessary. Double circuits and access other lines with single π type of the 110STJ is a new type tower that used in China for the first time. The tower with height call 24m, height 38.4m and weight l8.3t, was subjected to tests under nine operation conditions(including 90 degree of wind, broken wire, ice-covering and so on) based on the standard DL/T899 -2012 “Loading Tests on Tower and Pole Structures of Overhead Line”. The Experiments show that the displacements of tower 110STJ meet the relevant standard of deformation, and the stress of tower 110STJ did not exceed the member's carrying capacity respectively. Meanwhile, compared with the conventional similar general tower, this new type has good economic efficiency and social benefits. So it can meet the safe and reliable operation of the line, and can be applied widely.