Device for controlling deformation of steel box girder

The utility model discloses a device for controlling deformation of a steel box girder, which comprises a steel plate bearing platform, an electric magnet arranged in the steel plate bearing platform, a rubber cushion layer attached to the steel plate bearing platform, a hydraulic lifting device arranged below the steel plate bearing platform, a pressure sensor arranged at the top end of the hydraulic lifting device, and a supporting leg connected with the bottom of the hydraulic lifting device through a tightening latch. The end part of the tightening latch can be tightened to limit the rotation of the supporting leg; a vertical baffle is arranged on the side face of the steel plate bearing platform and provided with a buffering damping device, a steel wire tensioning device is arranged on the outer side of the vertical baffle, and an adsorption device is arranged at the end of a steel wire. A platform is provided for placing the large-scale steel box girder on an uneven field and transporting the large-scal