Buckling Analysis of Transmission Tower Considering Ice Load

2018 5th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造;土木建筑工程

Chen, Junqi^1 ; Xian, Qingjun^1 ; Zhang, Peng^1

School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou, China^1

关键词: Buckling analysis;    Finite element software;    Nonlinear buckling analysis;    Self-supporting towers;    Simulation analysis;    Social Security;    Stable operation;    Transmission tower;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/473/1/012036/pdf
DOI  :  10.1088/1757-899X/473/1/012036

来源: IOP

【 摘 要 】

Transmission lines are important lifeline projects. The stable operation of transmission lines is closely related to economic and social security and stability. Ice storm seriously affects the safety of transmission lines. The simulation analysis of ice damage of transmission tower structure has important theoretical significance and engineering value. In this paper, the finite element software ANSYS is used to analyze the buckling of the self-supporting tower based on eigenvalue buckling analysis and nonlinear buckling analysis. The effects of vertical span, uniform ice coating, uneven ice coating, and wind load were considered. The ice thickness of the tower buckling is reduced with the vertical span decreasing under uniform ice coating the transmission line. As the coefficient of unevenness increases, the thickness of the unstable ice coating of the tower drops sharply. The unstable wind speed decreases with the increase of ice thickness.