Connecting structure for steel structure building

The invention discloses a connecting structure for a steel structure building, and belongs to the technical field of steel structure buildings, the connecting structure comprises a stand column, a connecting column is arranged in the stand column, supports are arranged on the two sides between the connecting column and the stand column, and the supports and the stand column as well as the supports and the connecting column are connected through mounting seats; by arranging the limiting assembly, when the movable plate moves to push the positioning column to move, the arc-shaped edge on the upper side of one end of the movable plate pushes the arc-shaped block to move upwards, and meanwhile, the limiting spring is compressed; after a limiting groove in the upper end of the movable plate corresponds to an arc-shaped block in position, a limiting spring elastically stretches to push the arc-shaped block to enter the limiting groove in the upper end of the movable plate, the effect of limiting and fixing the mova