Connecting structure of ALC wallboard, steel beam and concrete floor

The invention relates to a connecting structure for an ALC wallboard, a steel beam and a concrete floor, and belongs to the field of constructional engineering, the connecting structure comprises the steel beam, a pi-shaped part is detachably connected to an upper flange of the steel beam, a positioning hole for mounting the pi-shaped part is formed in the upper flange of the steel beam, angle steel is arranged on the upper side and the lower side of the steel beam, and the pi-shaped part is detachably connected with the ALC wallboard through the angle steel. And the steel beams are detachably connected with the ALC wallboards through angle steel. Through bolt connection between the wallboards and the steel beams, between the steel beams and the concrete floor slabs and between the concrete floor slabs and the wallboards, reliable connection and reasonable stress can be guaranteed, the welding amount is reduced, the length of the angle steel is reduced to half of the wall width, the angle steel is arranged at