ComFlor 80 is a new generation of steel
composite decking that offers longer spans,
minimized concrete volumes, and sets new
benchmarks for shallow slab construction
efficiencies.
The efficiency and spanning capacity of the
trapezoidal profile is enhanced by the large
curved corner and the use of high strength
G500 galvanised steel to give major performance advantages.
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Proven construction economies.
ComFlor 80 has a wide range of applications,
is fast to construct, lightweight, and provides
a safe working platform so that the building
process can continue without delay.
Unpropped spans of up to 5.2m.
Design software is available to give
unpropped double span options of up to
5.2m. Longer deck spans broaden beam
spacing and reduce the number of the
support beams, resulting in rapid erection and
savings on the cost of the supporting
steelwork.
Reduced slab depth and
concrete usage.
The slab depth required for fire and structural
design is minimised by the profile design.
Concrete usage is further reduced by the
profile shape, which eliminates an effective
44mm from the slab depth. Reduced slab
depth and concrete volumes results in lower
overall floor height, reduced dead loads on
the structure and foundations, and savings on
the total cost of the building structure.
Fire properties of the
ComFlor 80 profile.
Tests have confirmed the top re-entrant
dovetail has no effect on the transmission of
heat energy through the slab.
The effective profile height of 80mm results in
a reduced overall slab depth being required
for any particular fire rating. Fire ratings of 3
hours are possible with CF80.
Central stud placement ensures
correct stud location.
The centralised stud position ensures
optimum capacity of the shear connectors,
enhancing composite action, while reducing
the need for site checking of stud location.
The result is saving on beam weights and
reduced construction risk.
Standard shear studs are
effective with ComFlor 80.
The Steel Construction Institute confirmed in
Note AD147 that the shear connectors should
extend at least 35mm above the top of the
main trapezoidal section. The CF80 profile
depth is 95mm including the top re-entrant
section and the trapezoidal height is 80mm
meaning that a standard 125mm stud is
suitable for use with the ComFlor 80 profile.
Design software tools.
Comdek Software is available for the design of
slabs with up to 3-hour fire rating to BS 5950
or Eurocodes. The profile has been rigorously
tested at Imperial College, London. The
Comdek program has been independently
produced and verified by the Steel
Construction Institute in the United Kingdom.
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