To evaluate the reliability of bridge tower vortex excited vibration induced by wind a simplified calculation method is proposed on the basis of tie research on vortex induced vibration mechanism and the phenomenon of frequency locking The safety margin equation is derived by critical wind speed with Renumber and Strouhal number A non-linear solving program for reliability analysis based on AFOSM theory and MATLAB is programmed. By using the reduction method of this paper with satisfactory calculation accuracy, the calculation difficulty of reliability analysis for bridge tower vortex excited ...
