Abstract
The nonstationarity in wind and its effects on the response of tall buildings are studied from the point of view of developing an adaptive active control scheme. The wavelet analysis of the wind and the structural response shows that the distribution of wind gusts with frequency close to the structural frequency could be one of the causes of nonstationarity in the structural response. It is also observed that the use of a longer averaging time results in a higher average peak factor for response and thus requiring one to develop a more robust control system, whereas a small averaging time may require frequent updating of the control system which is practically undesirable.
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