Floating bridge springboard beam structure

The utility model is suitable for the technical field of floating bridges, and provides a floating bridge springboard beam structure which comprises a springboard beam and a floating box connecting piece fixedly connected to the surface of a floating box. The springboard beam comprises a base and a cover plate; the cover plate covers the surface of the base; one side face of the base inclines upwards at a certain angle. Multiple reinforcing assemblies are arranged on the inner wall of the base. The reinforcing assembly comprises a plurality of reinforcing frames which are clamped with one another; the reinforcing frame comprises reinforcing strips; an L-shaped clamping plate is fixed on the surface of the reinforcing strip; clamping grooves matched with the L-shaped clamping plates are formed in the surfaces of the reinforcing strips; the L-shaped clamping plates on the reinforcing frame on the outermost side are clamped and matched with reinforcing strips; t-shaped sliding rails are arranged at the two ends