Mathematical models study of wind load on superstructures of 500kV single-circuittransmission tower

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Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (12) : 151-154.

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Mathematical models study of wind load on superstructures of 500kV single-circuittransmission tower

ZHANG Qinghua; GU Ming; HUANG Peng

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Abstract

Base on high-frequency-force-balance technique in TJ-1 wind tunnel，the mean and RMS forcecoefficients were obtained in different incoming wind turbulence，and the power-spectrum-density are derivedfrom the extreme along-wind, across-wind and torsional fluctuating wind forces. In light of these results, themathematical models of wind load on superstructures of 500kV single-circuit transmission tower are studied byapplying least-square-method. The results can be used to evaluate wind-induced dynamic response of typicaltransmission towers in frequency domain, and they are also helpful for the code revision.

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transmission tower / wind force / power spectrum / mathematical model

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ZHANG Qinghua;GU Ming;HUANG Peng. Mathematical models study of wind load on superstructures of 500kV single-circuittransmission tower[J]. Journal of Vibration and Shock, 2009, 28(12): 151-154