Pre-engineered steel buildings can be provided in a large variety of configurations depending upon building dimensions and requirements.
Pre-engineered steel building consists of the primary frames, secondary framing systems, metal roofing / wall cladding, structural sub systems (Canopy, Fascia, etc.).
Primary frames are the rigid frames of the building. These frames are normally tapered and often have flange and web of variable thickness along the individual members.
The most common primary framing systems which are symmetrical about the ridge line are shown. Asymmetrical framing systems and multi span framing systems with unequal width modules are also possible.
Secondary framing refers to purlins, girts, eave struts, bracing and other miscellaneous structural parts. These include typical ‘Z’ section and typical ‘C’ section.