Building spandrel girder structure

The utility model relates to the field of house building structures, in particular to a house building bearing beam structure which comprises a beam body, a threading pipe for a wire to penetrate through is arranged on the beam body, a penetrating hole for containing the threading pipe is formed in the beam body, and the threading pipe slides in the depth direction of the penetrating hole. A limiting assembly used for limiting the threading pipe to slide in the depth direction of the penetrating hole is arranged on the beam body. When a worker needs to pass through the beam body during wiring, the limiting assembly is removed firstly, then the threading pipe is separated from the beam body, then the electric wire penetrates through the threading pipe, then the threading pipe and the electric wire are put into the penetrating hole of the beam body, the electric wire and the threading pipe slide together, and finally the threading pipe is fixed into the penetrating hole of the beam body through the limiting ass