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ST7-R3.10.20.3 PSD Analysis of a Wind Load
Structures are often subject to loads that fluctuate in a random manner. One such fluctuation is the varying wind pressure acting on a building, caused by the fluctuation in wind speed. Due to the random nature of the wind speed fluctuation, a probabilistic description of the wind speed is most appropriate. This gives rise to the power spectral density (PSD) curves of wind speed. The effect of a given PSD spectrum of wind loading can then be applied to a structure in Strand7 using the Spectral Response solver. This Webnote examines the procedure for applying wind PSD on structures.
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