ComFlor® 51

Shallow composite profile
Typical unpropped span 2.5M - 3.6M

ComFlor® 51 is a traditional detail re-entrant composite floor deck. This profile provides an excellent mechanical key into the concrete slab, offering a strong sheer bond performance, which is augmented by cross stiffeners located in the profile trough. ComFlor® 51 presents a virtually flat soffit and a relatively thin slab is required to meet fire design requirements.

ComFlor® 51 composite slab volume & weight

Slab depth (MM) Concrete Volume (M²/M²) Weight of concrete (KN/M2)
Normal Weight Concrete
Lightweight concrete
Wet Dry Wet Dry
101 0.092 2.16 2.12 1.71 1.62
105 0.096 2.26 2.21 1.79 1.69
110 0.101 2.37 2.32 1.88 1.78
115 0.106 2.49 2.44 1.97 1.87
120 0.111 2.61 2.55 2.07 1.96
125 0.116 2.73 2.67 2.16 2.04
130 0.121 2.84 2.78 2.25 2.13
150 0.141 3.32 3.25 2.62 2.49
200 0.191 4.49 4.40 3.56 3.37
240 0.231 5.43 5.32 4.30 4.08

Section properties (per metre width)

Nominal
thickness
(MM)
Design
thickness
(MM)
Profile
weight
(KN/M²)
Area of
steel
(MM²/M)
Height to
natural axis
(MM)
Moment of
inertia
(CM4/M)
Ultimate moment capacity
Sagging
(KNM/M)
Hogging
(KNM/M)
0.90 0.86 0.13 1579 16.74 55.70 5.69 6.99
1.00 0.96 0.13 1579 16.74 55.70 5.69 6.99
1.10 1.06 0.16 1938 16.73 68.50 7.00 8.88
1.20 1.16 0.17 2118 16.72 77.29 10.24 9.81

Technical specifications:

Typical unpropped span 3.0m
+ Provides an excellent mechanical key into concrete slab.

+ Excellent fire performance

+ Shear studs. The wide trough of ComFlor® 51 permits a flexible and efficient placement of shear studs.

+ Fire performance of the composite beams. Even for two hours fire rating, the top flange of the steel beam does not require fire protection when used with ComFlor® 51 composite deck.

+ Under floor services. Services are easy to attach to ComFlor® 51, with the ribs presenting a dovetailed recessed grove in the concrete slab at 152.5mm centres. This provides the perfect connection for service hangers via a wedge nut or similar type of device.

+ Fire performance of the slab. The dovetail presents a very small opening and contributes little to the transfer of heat through the slab in the event of fire. Thus a lesser slab depth is needed for fire design purposes.

Downloads:

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