Model for predicting the acrosswind response of buildings
نویسنده
چکیده
A model is presented for predicting the acrosswind response of isolated square cross-section buildings to typical atmospheric boundary layers, over different terrains. Closed-form expressions for the autoand cospectra of the acrosswind force fluctuations are formulated, based on wind tunnel measurements. A statistical integration scheme is used to develop a mode-generalized acrosswind spectrum for any desired approach flow condition, i.e. open country, suburban and urban. A simplified expression based on random vibration analysis is used to compute the modal response. The model provides flexibility in the selection of appropriate input parameters, broadening the scope of its application and serving as a useful tool for tailoring the preliminary design of tall buildings.
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