Study of the Vortex-Induced Vibration Performance of Double Bluff Body Box Girder and the Vibration Suppression Measures Based on CFD
[Purposes]In order to study the wind-induced vibration of double bluff body box girder under low wind speed,it is necessary to study its vortex-induced vibration and vibration suppression measures.[Methods]Based on the Reynolds average method(RANS)and the SST k-ω model,a numerical simu-lation of the double bluff body box section was carried out by means of Computational Fluid Dynamics(CFD)to study the wind field information and vortex-induced vibration at low wind speed.[Findings]The pressure,flow field details and vibration conditions of the original section and each additional inter-nal lift horizontal baffle are obtained.[Conclusions]The vortex-induced vibration of the bridge can be effectively reduced by the internal lift horizontal baffle,and the vibration suppression effect of adding 1.5 m internal lift horizontal baffle in each working condition is the best.
bridge engineeringvortex-induced vibrationCFDdouble bluff body box girderinternal lift horizontal baffle
万方数据
维普
