Primary Framing System
Lsquare pre-engineered buildings are optimized to meet specific requirements of each client. Commonly used primary framing systems are shown below.
Primary framing is designed and detailed in such a way that only bolted connections are required.
Primary framing consists of all structural elements which transfer load to the foundation and comprise of:
- Rigid/Intermediate frames
- Crane brackets
- End wall frames
- Mezzanine beams and joists
- Wind bracings
Rigid Frames
Rigid frames are for Clear Span (CS) and Multi-Span (MS) buildings are most commonly spaced from 6000 mm to 10000 mm, center line to center line. In Multi-Span frames interior bay frames are rigid frames, typically with tapered exterior columns, tapered rafters and square tube or built-up interior columns.
Endwall Frames
End wall frames are “post-and-beam” (P&B) load bearing frames
with endwall girts flush framed into the webs of the endwall
posts so that the outer flanges of the girts are in the same vertical
plane as the outer flanges of the posts.
Wind Bracing
Wind bracing provides longitudinal stability against wind, seismic or other forces, is attached to the web of the rigid frame near the outer flange of columns and rafters. Solid round bars or hot rolled angles may be used as required by design.
Crane Brackets
Crane brackets are fixed to the column flanges and aid in supporting crane beams.
