All-welded rigid connection joint for cantilever section of steel beam

A whole steel beam is cut to form a mid-span section located in the middle and cantilever sections located at the two ends, the cutting faces of the mid-span section and the cantilever sections are inclined faces, the upper edges of the mid-span section and the cantilever sections are close to a steel column, the lower edges of the mid-span section and the cantilever sections are away from the steel column, and the ends, away from the mid-span section, of the cantilever sections are all welded and rigidly connected to the side face of the steel column; the upper edge and the lower edge of the connecting component extend to the inner sides of the upper flange and the lower flange of the cantilever section respectively, one end of the connecting component extends to the upper edge of the cutting surface of the cantilever section and continues to extend by a certain distance in the direction close to the steel column, and the other end of the connecting component extends to the lower edge of the cutting surface