Haocheng Zhao
ABSTRACT
High-voltage transmission towers, as support points for overhead transmission lines, are very sensitive to slope deformation, and extreme weather conditions such as heavy snow and hail can cause large changes in their internal stress distribution. It is of practical significance to analyze the change of the tension angle of the transmission line, and the changes in the stress and displacement of the tower. In this paper, a tower model of a high-voltage transmission tower is established by Abaqus6.14, and a simulation analysis under different loading directions is performed by a parametric finite element analysis method. The response law of internal stress and displacement of the tower to the loading direction was obtained. The analysis results show that the maximum stress and displacement of the tower are basically positively related to the external force, but the horizontal displacement response is abnormal within a certain range, and has the ability to resist horizontal deformation within a certain range of force, providing a structure optimization for the transmission tower reliable theoretical basis and new improvement directions.
- Lo, D. L. C., Morcos, A., Goel, S. K, Use of Computers in Transmission Tower Design. Journal of the Structural Division, ASCE. 10 (1975) 1443--1453.Google Scholar
- Knight GMS, Santhakumar AR, Joint effects on behavior of transmission towers. J Div, ASCE. 119 (1993) 689--712.Google ScholarCross Ref
- Chan SL, Cho SH, Second-order analysis and design of angle trusses: elastic analysis and design. Eng Struct. 30 (2008) 616--625.Google ScholarCross Ref
- S.H.Wang, X.L.Jiang, C.X.Sun, High Voltage Technology. 31 (2005) 11--14.Google Scholar
- A.Ghobarah, T.S.Aziz, M.El-attar, Engineering Structures. 18 (1996) 936--946.Google ScholarCross Ref
- M.Roshan.Fekr, G.McClure, Atmospheric Research. 46 (1998) 1--11.Google ScholarCross Ref
- Gao Zheng, Faults and Solutions of High Voltage Transmission Lines, Green Environmental Protection Building Materials. 12 (2016) 187.Google Scholar
- Bai Yuan, Zhang Jiansong, Wang Jing'ai, A Comparative Study of Snow Disasters in North and South China Based on Disaster System---Taking the Frost Rain and Snow Disasters in 2008 in the South and the Blizzard Disasters in the North in 2009 as Examples, Disaster Science. 26 (2011) 14--19.Google Scholar
- Liu Huadong, Zhang Jingya, Viewing some details of steel structure design from the 2008 snow disaster, Value Engineering. 30 (2011) 86--87.Google Scholar
- Chen Kequan, Research on Deicing Dynamic Response and Mechanical Deicing Method of Ice Covered Transmission Lines, Chongqing University. 2012.Google Scholar
- Zhao Shenglin, Research on wind-induced vibration response of transmission tower line system based on vector-based finite element, Wuhan University of Technology. 2016.Google Scholar
- Liu Pengke, Parametric finite element method in numerical simulation of high-voltage transmission lines, Chongqing University. 2007.Google Scholar
- Zhao Yuming, Wang li, Lu Yulin, Seismic dynamic response analysis of high communication tower, Modern Electronics Technique. 38 (2015) 16--19.Google Scholar
Index Terms
- Effect of Loading Direction on the Mechanical Responses of Transmission Tower
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