Project overview: structural type: double-layer space truss; Node type: bolt ball; Grid form: square pyramid; Support type: the peripheral support of the lower chord mainly includes: the detailed drawing of the grid support, the layout plan of the grid, the layout plan of the upper chord of the grid, the layout plan of the lower chord of the grid, the layout plan of the web members of the grid, the layout plan of the grid roof structure, the layout plan of the grid small columns, the grid, the roof section, the side elevation section, the corner node drawing, the detailed drawing of the steel gutter, the detail drawing of the bolt sphere node, the list of the frame members High strength bolt sealing plate cone head sleeve pin list, grid sphere node material list, etc
