ANALYTICAL METHOD OF ACROSS-WIND RESPONSE AND EQUIVALENT STATIC WIND LOADS OF HIGH-RISE BUILDINGS

Acorss-wind responses and equivalent static wind loads of tall buildings are presently problems of great concerns in wind engineering and structural enginerring.Based on the results of across-wind aerodynamic forces and aerodynamic damping of high-rise buildings obtained in previous studies,a new analytical method for across-wind responses and corresponding equivalent static wind loads of high-rise buildings is developed.Effects of mode-shape correction of generalized aerodynamic force,aerodynamic damping and background response component on the overall responses are taken into account in this method.A comparison of across-wind responses of a typical building computed using the present method and the method recommended by the Architectural Institute of Japan verifies the convenience and accuracy of the proposed method for practical purpose.Advantages of this method over the AIJ method are also indicated.