Experimental Study on Strengthening the Structure of Tower of Overhead Transmission Line

Abstract

Serious damage and collapse of steel towers were easily induced by the ice disaster, the wind disaster and so on. After the disaster, to ensure the overhead transmission line working safely, it is necessary to strengthen the structure of the damaged tower perpetually, but there are few strengthening methods for the tower assembled by angle-shaped members at present. If an identical angle-shaped member is connected on the side of the existing angle-shaped member through bolts, the mechanical performance of the damaged tower can be improved effectively. In this paper several methods for strengthening the angle-shaped tower is proposed, and the mechanical behavior of the strengthened member of the tower is discussed experimentally, and some design suggestions for strengthening the towers are given.

Selection of Foundation Types for Mechanized Construction of 220 kV Overhead Transmission Lines in Mountainous Areas Suitable for Fujian Province

“…Xu and Zhang [4] found that under the same geological conditions, the use of the wheel pile foundation could reduce concrete earthwork, load, and concrete and steel usage, providing remarkable economic benefits. Hong et al [5] and Long [6] found that 3D digital technology has a good application effect during the project construction, which can provide guidance on the high-quality development of the power design industry in the new era and technical support for the disposal of residual soil from power transmission and transformation projects [7,8] .…”