Steel structure beam

The utility model relates to the technical field of steel structure beams, and discloses a steel structure beam which comprises a longitudinal beam, an L-shaped supporting plate is fixedly assembled on the outer wall of the longitudinal beam, a supporting rod is fixedly assembled on the outer wall of the L-shaped supporting plate, a spring is fixedly assembled in an inner cavity of the longitudinal beam, a clamping plate is fixedly assembled on the outer edge of the spring, and the clamping plate is fixedly assembled on the outer edge of the spring. Clamping teeth are fixedly assembled on the outer walls of the clamping plates, electrode points are fixedly assembled on the outer walls of the clamping plates, and storage batteries are fixedly assembled on the outer walls of the longitudinal beams. According to the steel structure beam, the springs, the clamping plates and the clamping teeth are arranged on the inner walls of the longitudinal beams, when the cross beams need to be installed, the cross beams are