Abstract:With the increasing of the highway grade, driving speed and vehicle load, the vehicle-bridge interaction is becoming more and more prominent. Because of "bend-torsion coupling effect" in the vehicle - curved bridge coupling dynamic system, the dynamic analysis of curved bridge is relatively much more complex. A vehicle-curved bridge coupling system finite element model is established by the displacement coupling method based on APDL language. And the correctness of this method is verified by the existing literatures. Taking a 5-span continuous curved box girder bridge as an example, the dynamic deflection response of this bridge is calculated under the vehicle load. And the influences of partial load, vehicle speed and centrifugal force on the dynamic deflection and dynamic impact coefficients of the mid-span section of each span of continuous curved girder bridge are analyzed.
