Prefabricated Girders täpsus transport - mõeldud käivitamiseks Gantry süsteemid

The Bridge Girder Carrier, commonly referred to as the beam trolley or traveling trolley, is a specialized motorized transport unit installed on the launching gantry system. Its primary function is to move precast girders (T-beams, U-beams, I-beams, box girders) along the longitudinal axis of the launching gantry and precisely position them above the bridge piers for erection.

See üksus mängib olulist rolli ohutu, stabiilse ja täpse käitlemise tagamisel; raskete talade puhul sillaehitusprojektide ajal, kasutades span-by-span  või tasakaalustatud cantilever meetod.