This study presents an analysis framework for crosswind response of tall buildings under nonstationary wind excitations. The aerodynamic forces are modelled in terms of force parameters under stationary wind excitation with consideration of time-varying mean wind speed in a quasi-steady manner. The nonlinear aerodynamic damping effect is also included in the analysis. The time-varying standard deviation (STD) and kurtosis of response are determined from the statistical moment equations using non-Gaussian closure technique. The effectiveness of the analysis framework is examined through comparison with response time history simulations. The characteristics of nonstationary crosswind response are also discussed.
|State||Published - 2017|
|Event||9th Asia Pacific Conference on Wind Engineering, APCWE 2017 - Auckland, New Zealand|
Duration: Dec 3 2017 → Dec 7 2017
|Conference||9th Asia Pacific Conference on Wind Engineering, APCWE 2017|
|Period||12/3/17 → 12/7/17|