Large-span Portal Frame System

In the Open Building Systems, the portal frame is the most commonly adopted structure. Currently, more than 50% of warehouses in China use portal frames, which can be designed into various forms such as single slope, double slope, multi-slope, etc. Based on the structural column grid and load, various forms like equal-section or variable-section I-shaped columns and beams, or tubular columns in circular or square shapes, can be selected.