Integral hoisting system of arch rib of arch bridge

The utility model discloses an integral hoisting system of an arch rib of an arch bridge. The integral hoisting system comprises triangular rigid frames of the arch bridge, hoisting stations, an arch rib bracket, an integral arch rib and a barge used for conveying the integral arch rib, wherein a pair of triangular rigid frames is fixedly erected on bridge piers and symmetrically arranged on the both sides of a main span of the arch bridge, the inner side of each triangular rigid frame, close to the main span of the arch bridge, is provided with an arch rib folding section, which is folded with the integral arch rib, two hoisting stations are respectively arranged on the two triangular rigid frames, the arch rib bracket is erected on the barge, the integral arch rib is supported by the arch rib bracket, the hoisting stations are connected with the integral arch rib through a hoisting steel strand, and after the integral arch rib is hoisted, the integral arch rib is fixedly folded with the arch rib folding sec