Mathematical model of wind loads on cantilevered roof of stadiums

On the basis of pressure data acquired from wind tunnel test of rigid model of Mozambique National Stadium, the characteristics of surface pressure distribution on cantilevered roof structure and wind force spectra were analyzed, and spatial coherence of fluctuating wind pressure was also discussed. The regional spectra of fluctuating wind pressure and the empirical formula of coherence function were fitted, furthermore, the mathematical model for this kind of structures was established. By comparing the responses evaluated by the mathematical model and the numerical model, the engineering examples show that the mathematical model is accurate and applicable for calculations of dynamic response of the cantilevered roof structure under wind actions.