Bridge structure effect calculation method and device during emergency stop of train

The invention discloses a method and a device for calculating a bridge structure effect during train emergency stop, and relates to the technical field of bridge analysis, the method comprises the following steps: based on an established bridge finite element analysis model, obtaining a train track loading node sequence according to train track loading node spacing; obtaining a node dynamic load time history function and load arrival time of a train track loading node; performing vertical load simulation from the decelerating operation of the train to the stopping state; loading a horizontal braking force on a midspan node of a bridge train track based on a loading time-history function of the braking force, and carrying out horizontal load simulation when the train decelerates and runs to a stopping state; and a kinetic equation is established according to the number of the full-bridge longitudinal viscous dampers, the damping coefficient and the speed index of the single viscous damper and the friction resi