Research on Wind-induced Random Vibration Control of Long-span Cable-stayed Bridges Using TMD
Research on wind-induced random vibration control of long-span bridges based on TMD was carried out.A virtual excitation analysis program for random vibration response analysis of bridge-TMD system under random wind load was established and a TMD parameter optimization method for random vibration response control was proposed.Taking Xigu Yellow River Bridge as the back-ground,the wind-induced vibration control analysis of the actual bridge was carried out.The results show that the vibration control efficiency can be improved by nearly 9 times after TMD parameter op-timization based on this method.The control efficiency of lateral random displacement response can reach 28.83％,and the control efficiency of lateral random acceleration response can reach 28.8％.
tuned mass damperthe pseudo excitation methodresponse power spectrumwind-in-duced bridge vibration responserandom vibration
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