2013•Water Resources and PowerRequires access

Study on Wind-induced Response of UHV Double-circuit Transmission Tower-line Coupled System

Xiao Maoxiang

Abstract

In order to study the problem of wind vibration coefficient values of the 1 000 kV UHV double-circuit transmission tower,fluctuating wind speeds based on Kaimal spectrum,which reflects the change of wind speed with height above ground,are numerically simulated by means of harmonic composite method.Finite element model of transmission tower-line system are established by using ANSYS.Then combining with the theory of random vibration,the dynamic time-history response of the transmission tower-line system is analyzed.The wind-induced vibration coefficients are calculated.The coefficients are compared with the values obtained by load standard.Thus,it provides reasonable suggestions for wind resistance design of the transmission tower.

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Key concepts: Transmission tower, Transmission line, Tower, Wind speed, Vibration, Structural engineering, Harmonic, Finite element method