Stadium roof can provide a support structure lifting arrangement of FIG plane projection point of the beam structure, having a distinct site floorplan reference points, the venues height, and the height of the ceiling;
To provide a plan of plan plan for the structure beam of the building roof that can be used as a supporting structure, the floor plan with obvious reference point, the height of the venue, and the height of the ceiling;
Provide the layout plan of the structural beam whose roof can be used as the suspension point of the supporting structure, the layout plan of the site with obvious reference points, the height of the venue, and the height of the ceiling;