Effect of Loading Direction on the Mechanical Responses of Transmission Tower

Abstract

High-voltage transmission towers, as support points for overhead transmission lines, are very sensitive to slope deformation, and extreme weather conditions such as heavy snow and hail can cause large changes in their internal stress distribution. It is of practical significance to analyze the change of the tension angle of the transmission line, and the changes in the stress and displacement of the tower. In this paper, a tower model of a high-voltage transmission tower is established by Abaqus6.14, and a simulation analysis under different loading directions is performed by a parametric finite element analysis method. The response law of internal stress and displacement of the tower to the loading direction was obtained. The analysis results show that the maximum stress and displacement of the tower are basically positively related to the external force, but the horizontal displacement response is abnormal within a certain range, and has the ability to resist horizontal deformation within a certain range of force, providing a structure optimization for the transmission tower reliable theoretical basis and new improvement directions.