Yl180t rubber-tyred girder transport vehicle is used to assist rail-road bridge erecting machine construction.It is used to transport the beam from beam plant or reverse-loading gantry crane to the end of bridge girder eraction machine and work together with beam lifting device of bridge eraction machine to feed the beam.Tyre type beam car can transport 2201 type 16m,20m,24m and 32m T type beam piece and carry the bridge erecting machine.