Steady Suction For Controlling Across-wind-induced Effects Of Super High-rise Buildings

In order to verify the efficiency on control across-wind-induced effect ofsuper high-rise buildings through steady suction control and then propose thecontrol method to improve the wind-resisting ability of the buildings, this paperhave made researches on steady suction control for super high-rise building modelthrough wind tunnel test and CFD. On basis of discussing the mechanism ofsuction control, several main results were obtained as follows:(1) The suction control for wind-induced effect of super high-rise buildingwas proposed. Several parameters of steady suction were defined to study steadysuction control. Several parameters were also proposed to evaluate the efficiencyof steady suction control for across-wind-induced effects.(2) The synchronization pressure test of rigid model (CARRC standardhigh-rise model) was performed in wind tunnel. Across-wind aerodynamic forcewas identified by space integral methodology, and then the efficiency of steadysuction control on across-wind aerodynamic force was tested. Also, the mechanismof steady suction control for across-wind aerodynamic force was discussed in thedissertation.(3) In order to identify the across-wind aerodynamic damping force of superhigh-rise model, the numerical simulation method (DES) based on CFD of themodel which was under steady suction was discussed first in this dissertation.CARRC standard super high-rise model was chosen as computing model and thenthe efficiency of steady suction control for across-wind aerodynamic dampingcoefficient was verified. At last, the mechanism of suction control for across-windaerodynamic damping coefficient was discussed in this dissertation.