Bridge model updating method and system based on vehicle-bridge coupling acting force correction, storage medium and equipment

The invention discloses a bridge model updating method and system based on vehicle-bridge coupling acting force correction, a storage medium and equipment, and belongs to the technical field of engineering. The invention aims to solve the problem of low simulation accuracy caused by the absence of a refined updating method for a bridge model at present. According to the invention, the method comprises the steps: acquiring the dynamic response of the bridge structure under the load effect of the heavy-load vehicle through the sensors arranged on the bridge structure; according to the vertical vibration acceleration a and the vertical deflection y of the bridge at the gravity center o of the heavy-loaded vehicle and the speed u of the heavy-loaded vehicle, reconstructing the table surface response of the vibration table, and obtaining the interaction force of the vehicle-bridge coupling model; establishing a nonlinear finite element model of the bridge structure, taking the vehicle-bridge interaction force as e