Hoisting and turnover method for ultralarge section rectangular pipe joint and applicative device thereof

The invention discloses a hoisting and turnover method for an ultralarge section rectangular pipe joint and an applicative device thereof. The method comprises the following steps that the pipe jointis connected with a vertical lifting tool; the vertical lifting tool and pin holes in the left side and the right side of the pipe joint are connected through bearing pins, and the vertical lifting tool and the pipe joint are fixed; the pipe joint is connected with a horizontal lifting tool; and the horizontal lifting tool is mounted on a lifting system, the lifting system drives the horizontal lifting tool to move to the position above the pipe joint, the horizontal lifting tool is connected with the pin holes in the left side and the right side of the pipe joint through bearing pins, and thehorizontal lifting tool and the pipe joint are fixed. Through cooperative use of the horizontal lifting tool, the vertical lifting tool and a turnover frame, actions horizontal lifting, turnover andvertical lifting of the pip