Research on Dynamic Characteristics of Large Span Transmission Tower in Icing Environment

Abstract:

The transmission tower with a big span in the freezing area is very sensitive to climate. When extreme weather approaches, the tower may collapse easily. The dynamic characteristics of transmission tower structure vary under different weather conditions. This paper, taking a 500kV long span tangent tower as the research subject, will demonstrate the dynamic characteristics of such structures when the weight of wires, the icing stiffness of tower structure and the thickness of ice are considered. The results show that icing has a great impact on the dynamic characteristics of the tower structure and it can not be neglected. When the ice is thick, the contribution of icing to the stiffness of the structure should be considered. This conclusion can provide a reference for the analysis and design of similar towers in high altitude area.

• Periodical: Advanced Materials Research (Volumes 756-759)
• Pages: 4262-4266
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.756-759.4262
• Online since: September 2013
• Authors: Yue Du, Lan Jiang, Yu Xin Zhou, Qiao Rong Li, Tai Ran Wan, Zi Jun Pan
• Keywords: Dynamic Characteristic, High Voltage Transmission, Icing, Transmission Tower Line System

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