Bridge body structure

The utility model relates to a bridge body structure. The bridge comprises a bridge pier and a bridge plate which is supported on the bridge pier through a rubber support and used for a vehicle to walk in the front-back direction. Wherein one or more than two pull rope displacement sensors are arranged between the bridge pier and the bridge plate, each pull rope displacement sensor comprises a sensor shell, a pull rope and a pull rope, one of the sensor shell and the pull rope is connected with the bridge plate, and the other one of the sensor shell and the pull rope is connected with the bridge pier. When a vehicle passes through the upper side of the bridge plate; the bridge plate belongs to a rigid part and cannot deform; under the influence of the weight of a vehicle, the rubber support hammer generates vertical compression elastic deformation, a pull rope of the pull rope displacement sensor contracts, the pull rope displacement sensor measures the vertical elastic deformation X of the rubber support, th