Building steel member convenient to assemble

The utility model provides a building steel member convenient to assemble, and relates to the field of building equipment. The building steel component convenient to assemble comprises a fixing piece,a connecting piece and a steel pipe, the fixing piece, the connecting piece and the steel pipe are sequentially arranged left and right, the steel pipe is inserted into the connecting piece, and theconnecting piece is inserted into the fixing piece. The utility model discloses a building steel component convenient to assemble. A fastening screw, a nut, a lantern ring and a gasket are arranged; the steel pipe is inserted into the through hole; the left end of the steel pipe is in contact with the inner bottom wall of the through hole; at the moment, the limiting block is located in the limiting groove; rotary nut, nut starting rightward movement, the sleeve ring begins to move rightwards under the action of the nut, the trapezoidal structure at the right end of the fastening screw beginsto contract under the right