PERFORMANCE OF A TALL BUILDING UNDER WIND ACTION

Predictions of the wind-induced response of a projected 390 m high office tower have been made using high frequency base balance model and aeroelastic model techniques. Comparisons of the results from these two types of tests show that additional motion-induced forces in this case are small and that satisfactory estimates are obtained with the much simpler high frequency base balance model. Various aspects of the wind-induced response, including peak and joint action factors, the aerodynamic damping, the influence of building top geometry, and the effect of other buildings in the near field, are discussed.