Wind Tunnel Test and Wind-Induced Vibration Research on Shenzhen Bay Sports Center

In this paper,a series of wind engineering studies are carried out on Shenzhen Bay Sports Center,including wind pressure test,wind environment test and wind-induced response analysis.The investigation is focused on the pressure correlation between the upper surface and lower surface of the cantilever roof.The dependency of pressure fluctuation on the correlation coefficient is identified.The comparison tests show the mean pressure and fluctuation pressure on the roof are significantly different for the cases with and without surrounding buildings.With surrounding buildings,the amplitude of mean pressure is smaller,while the fluctuation pressure becomes evidently larger.Furthermore,wind field inside the stadium is obtained through the wind environment test,and wind environment evaluation is carried out according to local dominant wind directions.The recommendations are made to improve the wind environment in the stadium.Finally,wind-induced response is obtained by the time-history analysis on the basis of the synchronous pressure measurement results.The characteristics of displacement response are obtained.