Structure Design and Analysis for 110kV FRP Transmission Pole

Abstract

As an important class of special load-bearing structure, transmission pole affects the security, economy and reliability of transmission lines running directly. With the implementation of domestic major projects in recent years, such as UHV project, smart grid and transformation of rural grid, transmission pole of composite materials (referring to fiberglass reinforced composites in this paper) becomes one focus of attention in electric power industry for its lightweight, high strength, good electrical insulation, easy maintenance and good environmental adaptability, etc. Based on the existing national code for design of overhead transmission lines, design requirements, research and engineering practical experience, the structure design of a 110kV FRP pole is completed in the paper. Subsequently, the problem of small elastic modulus and large deflection are solved by mainly considering the pole's structure, material and cross section, etc. Then, the finite element static analysis is carried out in ANSYS. Result shows that the transmission pole meets the requirements of stress and deflection in the national code, which provides a theoretical reference for a further research.