Key Tips of the Moving forward and Lifting Girders of the Bridge Building Crane

Key Tips of the Moving forward and Lifting Girders of the Bridge Building Crane

The bridge building crane for high speed railway uses full span method to construct bridge with span 20m,24m and 32m, whole span girder weight 450t-900t, it is specially designed and made by ZZHZ

1. The moving forward and lifting girders of the bridge building crane need to be guided by the professional persons. The staffs should be ready and observe the situations closely. If any problems are found, the staffs should report them without delay. Before the bridge erecting crane lifts the first girder, the test should be conducted in the back of the bridge building crane. Whether the brake of the hoist is in good state should be checked and the T girder vertical be checked. After that, the bridge build crane can start to work.
2. When the bridge building crane moves forward, each system of the crane should be checked carefully.
3. When the bridge building crane lifts girder, each leg of the bridge building crane should be fixed firmly with the steel wire rope to avoid the slant of the legs. The two hoists should be in the same step when they are pulled longitudinally. They cannot be stopped if there are no special situations to avoid that the T girder shakes due to the inertia.