There are many different types of frames that are used in metal building construction. A basic understanding of the different types of frames will help you make the best choice for your application. The most popular steel building frame type is the clear-span rigid frame, which offers substantial strength and durability. The other styles: modular, single slope, Gambrel, asymmetrical, classic and lean to, each offers unique advantages.
Mainframes, vertical columns, and rafters are constructed from ¼” plate steel (ASTM# A.1011 50ksi) to form “H" or "l" beams with base and connection plates pre-welded and punched for ease of assembly. Clips used to secure purlins and girts are pre-welded to the frame. Welded clips are more structurally sound and result in saving a significant amount of time when erecting. Each individual component is pre-cut, pre-drilled, numbered and stamped for easy identification during assembly.
Clear Span Gable Symmetrical Frame
Modular Gable Symmetrical Frame
Structures using the modular frame type with interior columns evenly distribute the weight of the building. This frame allows for wider buildings to be constructed while keeping building costs down. Some of the most common uses for modular steel frame buildings include:
Factories: Different industries require varying sized factories. With modular framing, you can design and build steel frame buildings large enough to accommodate your unique factory specifications.
Warehouses: Since storerooms and warehouses tend to be larger than regular steel framed buildings, the use of modular framing works as an ideal solution. Modular framing also allows you to construct custom steel framed buildings that are large enough to meet your specific needs while doing so at an affordable price.
Clear Span Single Slope Frame
The measurement for a single slope frame structure is done by specifying the eave height of the lower side and afterwards defining the pitch or slope of the roof. A roof pitch basically refers to the number of inches a roof rises vertically for every 12 inches it runs horizontally. The most standard pitch size for single slope frame steel buildings is ½:12 pitch but it can be steeper also depending upon the building structure. Single slope frame structures find their way into strip shopping centers, offices, retail establishments, office suite areas and mini storage complexes. They are also used for many agricultural applications.
Asymmetrical Offset Peak Clear Span Frame
Primarily used for expansion or extension of a building, lean-to frames can provide additional space very economically. They are commonly used to provide additional office or storage space for a larger building. A lean-to frame typically has a single slope profile (no ridge) and straight sidewall columns. It must be supported by the attachment to another frame.
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