Steel structure plant upper section column inter-column supporting structure with crane beam

The utility model relates to the technical field of building components, in particular to a steel structure plant upper section column inter-column supporting structure with a crane beam. Opposite upper section columns are arranged at the top ends of the two lower section columns respectively, the crane beam auxiliary truss is fixed between the two lower section columns, the beam bracket is fixed between the two upper section columns, the joist connecting frame is fixed at the bottom end of the beam bracket, and the joist connecting frame and the two inter-column supporting plates are connected to form a K-shaped supporting structure. The bottom ends of the inter-column supporting plates are fixed to the crane beam auxiliary truss, the two inclined plates are fixed to the opposite faces of the two inter-column supporting plates respectively, the top ends of the two inclined plates are fixedly connected to the center of the bottom end of the joist connecting frame, and a middle rib plate is arranged between th