Superimposed steel plate connecting beam disposed between shear walls in building structure and construction method of superimposed steel plate connecting beam

The invention discloses a superimposed steel plate connecting beam disposed between two shear walls in a building structure. The shear walls are arranged vertically, section steel is pre-buried in each of the shear walls, the superimposed steel plate connecting beam is arranged between the shear walls and is of a steel plate-rubber integrated structure formed by vulcanizing multiple steel plates and a rubber layer filled among the steel plates, the steel plates are uniformly arranged in an up-down manner, and two ends of the steel plates are fixedly connected with the section steel pre-buried in the shear walls. By the superimposed steel plate connecting beam, shear force received by adjacent shear walls can be reduced, and safety of the connecting beam and the shear walls is guaranteed. The superimposed steel plate connecting beam is suitable for shear walls of various building structures, especially suitable for shear wall structures with connecting beams exceeding shear force limitation, shear force received by the shear walls can be reduced, and safety of the building structure can be guaranteed.