Large-span prestressed beam auxiliary supporting structure

The utility model discloses an auxiliary supporting structure for a large-span prestressed beam, and belongs to the field of building construction. The safety net comprises an upper supporting beam, a lower supporting beam and bailey pieces, the multiple bailey pieces are erected on the surface of the lower supporting beam, U-shaped bolts are arranged above the bailey pieces, the bailey pieces are connected with the upper supporting beam through the U-shaped bolts, a bearing mechanism is arranged at the tops of the bailey pieces, a safety net is hung between the bailey pieces, and fixing frames are arranged at the two ends of each bailey piece. An adjusting mechanism is arranged at one end of each beret piece, the beret pieces are connected to the outer side of the fixing frame through the adjusting mechanisms, and the other ends of the beret pieces are directly connected with the outer side of the fixing frame. The problem that a center safety net in the prior art cannot adapt to bailey pieces at different i