Prefabricated Steel Building Construction

Key Components of a Prefabricated Steel Building System

Primary Framing: The main structural skeleton.

- Rigid Frames: I-shaped columns and rafters that form the building's outline. These are designed to resist vertical and lateral loads.

- Clear-Span vs. Multiple-Span: Clear-span frames offer completely unobstructed interior space, ideal for warehouses and aircraft hangars. Multiple-span frames use interior columns for wider buildings.

Secondary Framing: Supports the building envelope and transfers loads to the primary frame.

- Purlins: Horizontal members that span across the rafters to support the roof.

- Girts: Horizontal members that span across the columns to support the walls.

- Eave Struts: A special member at the intersection of the roof and wall.

Building Envelope / Cladding:

- Roof and Wall Panels: Typically sandwich panels (for excellent insulation) or single-skin corrugated steel sheets.

- Insulation: Can be blanket insulation or, more commonly, the foam core within sandwich panels.

Accessories:

- Bracing: Steel rods or cables that provide stability against wind and seismic forces.

- Fasteners: High-strength bolts, screws, and washers.

- Flashings & Trim: For weatherproofing at ridges, eaves, and corners.

- Doors, Windows, and Louvers.

Common Application

Prefabricated steel buildings are incredibly versatile and are used in:

- Industrial: Warehouses, factories, distribution centers, workshops.

- Commercial: Retail stores, showrooms, office buildings, shopping malls.

- Agricultural: Equipment storage, barns, grain stores, riding arenas.

- Recreational: Sports complexes, gymnasiums, indoor swimming pools.

- Aviation: Aircraft hangars, airport terminals.

- Community: Churches, schools, community centers.