Method and device for erecting long spanning girders, particularly on viaducts.

摘要

The method for the erection of a long girder comprises the steps of placing a front runway beam (1) on the top of the front pier (3); placing a rear runway beam (2) on the front extremity of the girder (4) previously erected; lifting the girder (4') by means of lifting devices fixed to cantilevers (13, 14) provided at the extremities of the girder (4') to be lifted; translating the girder (4') horizontally and transversely to the longitudinal direction of the girder into a position above the piers (3, 3').