Length of cable at a weight space limited conditions hung installation method

The present invention discloses a length of cable under a heavy condition hung mounting space is limited, comprising a first cable-stayed across the side edges of the tower and the tower across the side of the second mounting stay cable comprising the steps of: S10 mounting a first end of cable tower; a first inclined cable Liangduan An apparatus S20; S30 column a first end of the cable-stayed hard traction; the second inclined cable S40.... column mounting end; S50 Liangduan An apparatus of the second inclined cable;.. S60 synchronous remote tensioning of the present invention, the side span across one side and the stay cables are used at the "first column Girder hung" hung manner to solve the long heavy cable-stayed "first beam after the end of the tower hung" when the tower after the program ends in hung traction force is too large, the problem of insecurity. Meanwhile, the present invention employs take end of the beam and column end remote synchronization tension, the tower can be resolved narrow space difficult construction problems, to avoid cutting waste each time a set of tensioning of cable tension when the lever extension, reduction of material waste, reduce construction costs.