Vertical butt-joint correcting device for large steel pipe column

The utility model discloses a large steel pipe column vertical butt joint correcting device which comprises a steel pipe A, a steel pipe B, a base table, an adjusting device and a testing device, thesteel pipe A and the steel pipe B are stacked on the base table from top to bottom, the adjusting device comprises an adjusting screw rod, a lug plate A is fixed to the outer wall of the steel pipe A,and a lug plate B is fixed to the outer wall of the steel pipe B; one end of the adjusting screw rod is connected with a pair of adjusting nuts A in a threaded mode, the other end of the adjusting screw rod is connected with a pair of adjusting nuts B in a threaded mode, the pair of adjusting nuts B are tightly clamped on the two sides of the lug plate B, and when the pair of adjusting nuts A aretightly clamped on the two sides of the lug plate A, the adjusting device enables the relative positions of the adjusting steel pipe A and the steel pipe B to be locked. By the adoption of the technical scheme, the relative de