Rain-Wind-Induced Analysis of Transmission Steel Tower

Abstract:

The paper established a finite element model of DZV674 linear tower (500 kV Shiyang - Wuyi transmission project) by ANSYS and studies its dynamic properties. Its first 10 order modes and natural vibration period are obtained. Based on the principle of Kaimal power spectrum and linear filtering method (AR) for simulation time-history of fluctuating wind speed, power spectrum simulation program of wind-speed is got by using Matlab. The rain load simulation is finished on the former simulation.The dynamic analysis of the transmission tower is calculated subject to wind load and rain-wind load.The results demonstrate that wind is the main design load in rain-wind-induced, but the effect of rain shouldn’t be neglected.

• Periodical: Advanced Materials Research (Volumes 450-451)
• Pages: 64-67
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.450-451.64
• Online since: January 2012
• Authors: Li Qin, Wen Jing Ding
• Keywords: Dynamic Analysis, Rain Load, transmission tower, Turbulent Wind

References

[1] Hawes H.D:Review of recent Australian transmission line failures to high intensity wind.Proc. the Task Force of High Tntensity Winds on Transmission Lines,Buenos Aires,1993,4:19-23.

[2] Xie Qiang,Zhang Yong and Li Jie:Investigation on Tower Collapses of 500 kV Renshang 5327 Transmission Line Caused by Downburst(Tongji University, Shanghai 2005).

[3] Wu Xiaoping:Numerical Study Of Wind-rain Interaction Effect on Low-rise Buildings(Zhejiang University, Zhejiang 2005).

[4] Kikuchi N,Matsuzaki Y and Yukino T:Aerodynamic drag of new-design electric power wire in a heavy rainfall and wind. Wind Eng.Ind.Aerodyn, 2003, 91(1): 41-51.

DOI: 10.1016/s0167-6105(02)00334-3

[5] Ren Yueming:Rain-wind-induced Dynamic Response Analysis of Transmission tower-Line System(Dalian University, Dalian 2007).