Anti-bulging device for jacking construction method of rectangular concrete-filled steel tubular column

The utility model discloses an anti-bulging device for a jacking construction method of a rectangular concrete filled steel tubular column, which comprises two reinforcing pieces arranged at intervals, the two reinforcing pieces are fixedly connected through a connecting piece, and reinforcing parts for reinforcing are arranged at the positions, used for connecting the connecting piece, of the reinforcing pieces. The reinforcing pieces are horizontally-arranged H-shaped steel, and vertical plates of the H-shaped steel are perpendicular to the to-be-reinforced side wall of the concrete column.Connecting pieces are arranged at the two ends of each reinforcing piece, external threads are arranged at the two ends of each connecting piece, the connecting pieces penetrate through the two reinforcing pieces, and nuts are installed at the two ends of each connecting piece. The two reinforcing pieces can clamp the concrete column from the two sides and are fixed to the concrete column throughthe connecting pieces. The