A building’s ‘framework’ is made up of the components, as a whole, that are joined together to give a building its support, shape and size. This framework is made up of primary (main) framing and secondary (stabilizing) framing. To describe the frame options, we’ll focus on the primary or main ‘frames’.
The two most common frame types utilized in fabric buildings are generally known as Single Tube and Open Web Truss. Wide flange, rigid frames and aluminum frames are also available, but are far less common.
Hollow structural section (HSS) is the tube most commonly used in fabric building framework. This carbon steel tubing comes in multiple profiles including square, rectangular and round and is available in many standard sizes and gauges (wall thickness).
Single Tube Frames:
Single tube frames are basically multiple sections of HSS, joined end-to-end, to create a single building frame. Buildings with single tube frames, whether in Arch, Gable or Custom profiles, are generally utilized for widths (spans) up to about 30’. Buildings with single tube frames are generally offered with frames spaced 3’ to 5’ on center and are available in any length. Buildings with single tube frames can be offered with or without end walls, for ground mount or wall mount applications and for temporary or permanent installations. Buildings with single tube frames can be engineered for site-specific loads as needed.
Open Web Truss Frames:
Open web truss frames are made up of two HSS tubes separated and connected via smaller tubes. Truss configurations can be designed to handle any environmental load requirements. Like single tube frames, multiple truss sections are connected end-to-end to create a single building frame. Buildings with truss frames, whether in Arch, Gable or Custom profiles, are very versatile and are utilized for buildings up to and exceeding 250’ in width. Buildings with open web truss frames are offered in engineered and non-engineered configurations.