为了研究在台风风场下输电塔的动力特性，以广东地区某输电塔为例，采用不随高度变化的石沅台风风速谱，应用谐波叠加法生成台风风场下的风速时程，同时在模拟中采用了FFT技术，从而简化了计算过程，提高了运算效率。通过比较自功率谱和互功率谱可以看出，模拟值与目标值非常吻合，证明了该方法的有效性和可靠性。%To study a dynamic characteristics for transmission tower under the typhoon wind field, in the example of transmission tower in Guangdong in this paper, the samples of fluctuating wind speed have been numerically simulated by the harmonic wave superimposing method, by using of Shiyuan typhoon wind speed spectrum which is unchangeable with the height. And the FFT technique is adopted, so the simulation can be easy and efficiently performed. By comparing the auto power spectrum and the cross power spectrum, it is found that the values of the simulated wind field agree well with the target values. So it is proved that the method presented in this paper is valid and reliable.
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