The hall roofing is a hyperboloid-welded spherical steel space frame. The shape of the space frame is complex. The total steel used weighs 530 tons and the area is 13,500 square meters. The construction plan of the steel space frame adopts the on-site assembly of the hall. Then the rest of the surrounding cantilevered space frames will be placed in place at high altitudes to complete the installation and construction task of the overall steel space frames of the station building. This time, the steel space frame was lifted in the hall of the overhead floor, with an area of 6142 square meters and a weight of 380 tons. 12 jacks were used, and the computer centralized control system was used to lift the construction operation synchronously, ensuring that the 12-string ball vertices of the building space frame structure were accurately synchronized in place.

The project department attaches great importance to the jacking construction of the steel space frame. Since the jacking operation is a dangerous project, the construction is difficult, the safety risk is high, and it is operated in a high-temperature environment in summer. The project director conducted pre-, in-process, and Strictly control the work deployment after the event, from the plan review, expert demonstration participation, factory supervision, steel structure flaw detection, joint acceptance before jacking, process supervision station scheduling and monitoring, on-site supervision station, on-site coordination, etc., All-round and effective guarantees that the jacking operation is carried out in a standardized, orderly and controlled manner, and the milestones of the jacking plan are completed safely and smoothly as scheduled.