The standard Disco mezzanine framing system consists of a steel deck supporting by joist framed onto the main Mezzanine beams. The main beams may also be supported by intermediate columns if dictated by design loads. The top flange of the joists fits immediately below the top flange of the primary beams.
Applied floor loads, such as dead, live and collateral loads along with Mezzanine Column spacing, can affect the economy of a mezzanine system. Our Disco representative nearest to you can help you to determine the most economical Mezzanine design and column spacing for high grade steel plate conforming to ASTM A 572 Grade 50. Factory painted with a minimum of 35 microns (DFT) of Corrosion protection primer.
Member fabricated by cold forming process shall conform to ASTM A 607 Grade 50 or equivalent, available in 1.5mm, 1.75mm , 2.0mm, 2.25 mm, 2.5mm and 3.0 mm thickness, Factory painted with a minimum of 35 microns (DFT) of corrosion protection primer, or pre- galvanized finish.
Standard Framing Features
- Main frames are typically consists of tapered or uniform depth columns and rafters.
- Rigid Frames for Clear Span (CS) and Multi Span (MS) building are most commonly spaced from 6000 mm to 10000 mm, center line (bay spacing).
- Outside flanges of Clear Span (CS) and Multi Span (MS) rigid frame columns are inset 250 mm from the sidewall steel line to allow for by-pass girts.
- Outside flanges of space saver (SV) rigid frame columns shall be placed flush with the gable wall steel line.
- The top flanges of all rigid frame rafters are 200/250 mm below the bottom of the roof sheeting. (depending upon the depth of purlin)
- End frame are "post and-beam" (P&B) load bearing frames with end wall girts flush framed into the webs of the end wall posts so that the outer flanges of the girts are in the same vertical plane as the outer flanges of the posts. Optional rigid frames may be used at the building ends.
- End wall posts are typically spaced at 6000 mm, depending upon width of the building and end wall openings. Other spacing may also be used when building width is not evenly divisible by 6000 mm the interior spacing of the end wall posts is typically kept at 6000 mm with two equal end spacing smaller or larger than 6000 mm.
- For Clear Span (CS) and Multi Span (MS) buildings the sidewall grits are attached (by-passed) to the outer flanges of exterior columns. Sidewall grits are lapped at all interior frames. For space saver (SV) and lean-to (LT) building, the sidewall girts are flush connected (flush framed) so that the outer flange of the grits is in the same vertical plane as the outer flange of the girts on the exterior columns.
- The bottom flanges of roof purlins are attached to the outer (top) flanges of the rafters through cleats. Purlins are lapped at all interior frames in all structural framing systems.
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