Open AccessStability and reinforcement analysis of weathering steel high voltage transmission tower
Author(s) -
Yao Yao,
Wang Ling Xu,
Zhang Jia
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/637/1/012009
Subject(s) - buckling , transmission tower , reinforcement , tower , structural engineering , finite element method , weathering , weathering steel , transmission (telecommunications) , materials science , position (finance) , transmission line , composite material , engineering , geology , electrical engineering , corrosion , finance , geomorphology , economics
The local instability of weathering steel transmission towers is an important reason for the collapse of transmission towers.In this paper, the wind speed is converted into wind pressure and applied to ANSYS finite element model established according to the actual equal proportion, and the influence of secondary stress and the orientation of Angle steel are considered.The stability of transmission tower is analyzed according to buckling coefficient.The results show that the buckling coefficient and the buckling position increase with the reinforcement degree of the main material of the weathering steel transmission tower.After the reinforcement of the first and second sections of the main transmission material is completed, the buckling position moves up to the web bar of the transverse arm.The buckling coefficient of T type is about 39% and 25% higher than that of the cross type and Z type respectively, which can effectively improve the safe operation ability of the line.