Auxiliary rigid body for hoisting large-span steel beam under high limiting condition

The utility model provides an auxiliary rigid body for hoisting a large-span steel beam under a high limiting condition. The auxiliary rigid body comprises a web, wherein an upper flange plate and a lower flange plate are respectively arranged at the upper side and the lower side of the web so as to form H-shaped steel; vertical stiffening plates are arranged at the left side and the right side of the web; a bottom flange stiffening plate is arranged between every two adjacent vertical stiffening plates; and a lifting lug web hole is formed in the middle of the web, lifting lug reinforcing plates are arranged at the two sides of the web above the lifting lug web hole, and lifting lug top flange plate holes are formed at the two sides of an upper lifting lug reinforcing plate of the upper flange plate. The auxiliary rigid body provided by the utility model can be used for overcoming the shortcomings of the prior art and reducing the length of a wire rope sling under the condition that a suspension arm of hoist