To provide a simple and open-and-shut joint intended for joining a column and a beam in the field of architecture, wherein the bending moment is not generated because force in the material axial direction is transmitted by a member in the material axial direction, and fastening work with high-tension bolts is all performed in the lateral direction.

Gusset plates welded on the upper and lower ends of the columns are inserted into slots formed longitudinally on the flange surfaces of H-section steel along its web, and sandwiched between the web of the H-section steel and a beam mounting metal fixture so as to be joined with high-tension bolts.