METHOD AND SYSTEM FOR UPDATING BRIDGE MODEL ON BASIS OF VEHICLE-BRIDGE COUPLING FORCE CORRECTION, STORAGE MEDIUM, AND DEVICE

A method and system for updating a bridge model on the basis of vehicle-bridge coupling force correction, a storage medium, and a device, which belong to the technical field of engineering. The purpose of the present invention is to solve the problem of low simulation accuracy due to the fact that there is no refined method for updating a bridge model at present. The method of the present invention comprises: obtaining, by means of a sensor arranged on a bridge structure, a dynamic bridge structure response (2) of the bridge structure under the load of a heavy-duty vehicle (1); according to the vertical vibrational acceleration ao and vertical deflection yo of the bridge at the center of gravity o of the heavy-duty vehicle (1) as well as the speed uvehicle of the heavy-duty vehicle (1), reconstructing a table response of a vibration table (4) and obtaining the interaction force of a vehicle-bridge coupling model; and establishing a nonlinear finite element model of the bridge structure, using vehicle-bridge i