Purpose of 900t launching gantry integrating girders carrying and installing
900t launching gantry integrating girders carrying and installing moves by tires, with steel box girder as main girder.
Main purpose:
- The launching gantry is suitable for installing full span concrete box girders for double carriages railway passenger special line in the mountain area;
- The launching gantry could carry precast girders in the precast yard to girder installation position by passing access road, roadbed, bridge and tunnel, and it will not cause any damage with heavy load to roadbed and bridge deck;
- The launching gantry could transfer to another worksite, turn to reverse direction and pass double lanes tunnels with carrying precast girder by self functions and tools, and any auxiliary facilities outside are not needed;
- The launching gantry will not collide with finished project in the working process, finish constructing the first span and last two spans very conveniently and fast;
- The launching gantry could install girders at zero distance to tunnel entrance and exit and in tunnel.
