Technical requirements for girder lifting machine
1, the lifting mechanism and the running mechanism running speed is low, in order to improve the precast beam alignment accuracy and reduce the impact on the beam machine structure.
2, the internal space of the beam lifting machine should be large enough to meet the assembling of the lifting prefabricated beam and bridge erecting machine.
3. Disassembly and transportation of the main steel structure should be considered under the premise of meeting the strength, stiffness and stability.
4. The synchronous operation of two machines should be satisfied when two lifting prefabricated beams are used.