Analysis of Unequal Leg Transmission Tower Line System in Wind Vibration Response

Abstract:

The unequal leg transmission tower in mountainous areas of 5B-ZBC4 is based to establish the finite element model of three transmission tower and four wire line system. To further study the transmission tower under wind load displacement response, firstly using ANSYS analysis of the dynamic characteristics of the tower-line system. Then, taking the power spectrum of Kaimal wind speed and simulating the curve of wind speed of transmission tower line system in mountainous areas, considering the different elevation and different sizes of wind load, to analysis the wind vibration response for the tower-line coupling system. The results indicates that the tower top displacement means of 1# tower, 2# tower, 3# tower is increasing along with the elevation changes in 0 degrees wind load; The 37 m/s is the critical wind speed of 3# tower of transmission tower line system.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 1288-1291
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.1288
• Online since: October 2015
• Authors: Li Qin*, Long Zhou, Yu Jiang Pan
• Keywords: Dynamic Characteristics, Fluctuating Wind, Time History Analysis, Tower-Line System

References

[1] Junqi Chen, Wei Wang. Analysis of the wind-induced dynamic response of transmission tower line system[J]. Prevention Technology of Earthquake Disaster. 2010, 78(3): 187-193.

[2] Chengzhong Qu, Longping Cao, Yujiang Pan. Yield analysis of unequal leg transmission tower[J]. Science of Hydroelectric Energy. 2013, 21(1): 139-144.

[3] Yuzhuo Jia, Biao Tang. Analysis of the wind-induced dynamic response of unequal leg transmission tower[J]. Industrial Building. 2010, 20(2): 69-71.

[4] Tiansheng He, Zhenhua Wang, Yunxiang He. Wind induced vibration response analysis of 500 kv tower in large cross domain[J]. Grid Design. 2012, 44 (2): 207-210.

[5] Wanli Zhong, Yi Wu, Wei Wang. Analysis on fluctuating wind induced vibration for high-voltage transmission line[J]. Electric Power, 2012, 45(7): 1-3.