English：

Rod EI-Farag Axis Bridge in Egypt is a double-tower three-span cable-stayed bridge. The main bridge span is 120m+300m+120m, and the bridge deck width is 67. 3 meters. The stay cable adopts OVM250 parallel epoxy steel strand system, and the maximum specification cable has 111 steel strands. In order to better protect the anti-corrosion layer of the steel strand, the use of circulating wire rope and support plate in the stay cable construction is abandoned, the “ top-down ” reverse cable installing technology is adopted,which raises the stay cable from the outside of the pipe to the top of the tower using a top rope strainer, then, under the dead weight of the steel strand, it can be carried out without other auxiliary tools in the pipe. The “top-down” reverse cable installing technology avoids the common problems of rubbing, tangling, and falling cables in conventional cable installing methods, simplifies the construction operation process, optimizes the quality control method,and greatly improves construction efficiency and construction quality.