Research on Vehicle-Bridge Coupled Vibration of Long-Span Continuous Rigid Frame Bridges With High Piers

Vehicle-bridge coupled vibration of long-span continuous rigid frame bridge with high pier is serious due to its own characteristics. A series study has been done based on a long-span continuous rigid frame bridge with high pier. Dynamic response of bridge was analyzed using the special bridge dynamic analysis software. A series of points for dynamic strain and dynamic deflection measure were arranged on the real bridge, so as to measure the axle coupling vibration dynamic deflection and dynamic strain value. In order to study the reliability of the calculated dynamic effect of high pier and long-span continuous rigid frame bridge, the measured real data are compared to the calculated ones. The results show that the calculated vehicle-bridge coupled vibration data is very closed to the real one. In conclusion, this analytical method is accurate and reliable which can be used as a reference in the study of vehicle-bridge coupled vibration dynamic response of the same type of bridge.