Tata Steel ComFlor® 100 Composite Floor Deck
COMFLOR® 100
COMFLOR® 100
Composite Floor Deck
Strong long span composite profile for non-composite beams
ComFlor® 100 is a strong long span profile that reduces or eliminates temporary propping irrespective of the frame design.
It provides a composite floor slab and is suitable for use with concrete beams or non-composite steel beams.
- Long span strength.
- Fast laying.
- Suitable for use with concrete beams or non-composite steel beams.
- Nestable profile.
BENEFITS
LONG SPAN STRENGTH
Long span strength reduces or eliminates temporary propping.
NESTABLE
The simple trapezoidal shape neatly nests one profile into another, allowing more square metres per bundle.
EFFICIENT FOR EXPORT
Maximises the square meterage in each container.
FAST LAYING
As simple to install as a roof deck, the concrete can soon be poured.
INFORMATION
LOAD SPAN TABLES
Our Load Span tables are designed to optimise the span in the construction stage, with the minimum amount of anti-crack reinforcement required by the relevant design code, while also considering the minimum requirements for the various imposed loading and fire resistance periods.
COMFLOR® 100 COMPOSITE SLAB - VOLUME AND WEIGHT (BS VALUES)
| SLAB DEPTH (mm) | CONCRETE VOLUMEN (m3/m3) | NORMAL WEIGHT CONCRETE WET | NORMAL WEIGHT CONCRETE DRY | LIGHTWEIGHT CONCRETE WET | LIGHTWEIGHT CONCRETE DRY |
|---|---|---|---|---|---|
| 150 | 0.090 | - | - | 1.69 | 1.60 |
| 160 | 0.100 | 2.37 | 2.32 | 1.87 | 1.77 |
| 170 | 0.110 | 2.60 | 2.55 | 2.06 | 1.95 |
| 180 | 0.120 | 2.84 | 2.78 | 2.25 | 2.13 |
| 190 | 0.130 | 3.07 | 3.01 | 2.43 | 2.30 |
| 200 | 0.140 | 3.31 | 3.24 | 2.62 | 2.48 |
| 210 | 0.150 | 3.54 | 3.47 | 2.80 | 2.66 |
| 220 | 0.160 | 3.78 | 3.70 | 2.99 | 2.83 |
| 230 | 0.170 | 4.01 | 3.93 | 3.18 | 3.01 |
| 250 | 0.190 | 4.48 | 4.39 | 3.55 | 3.36 |
PROPERTIES
COMFLOR® 100 (S280) SECTION PROPERTIES (PER METRE WIDTH)
MOMENT OF INERTIA(CM4/M)
| SAGGING | HOGGING |
|---|---|
| 225.77 | - |
| 298.00 | - |
ULTIMATE MOMENT CAPACITY (KNM/M)
| SAGGING | HOGGING |
|---|---|
| 11.26 | 11.20 |
| 12.40 | 18.64 |
| NOMINAL THICKNESS (mm) | DESIGN THICKNESS (mm) | CROSS SECTION AREA(mm2/m) | PROFILE WEIGHT (kN/m2) | HEIGHT TO NEUTRAL AXIS(mm) |
|---|---|---|---|---|
| 0.90 | 0.86 | 1511 | 0.1258.00 | 58.00 |
| 1.20 | 1.16 | 2022 | 0.16 | 58.00 |
DECK MATERIAL
Tata Steel Galvatite®, hot dip zinc coated steel to BS EN 10346 S280GD+Z275, with guaranteed minimum proof strength of 280N/mm2 and zinc coating of total mass 275g/m2 (including both sides). This is sufficient for internal floors in a non-aggressive environment, which satisfies the requirement in clause 4.2 BS EN 1994-1-1 - the exposed surfaces of the steel decking shall be adequately protected to resist the particular atmospheric conditions. A zinc coating, if specified, should conform to the requirements of BS EN 10346. The specification may be varied, depending on service conditions.
ANTI-CRACK MESH
As a minimum requirement where the control of crack width is of no interest, BS EN 1994-1-1, 9.8.1(2) recommends that, where continuous slabs are designed as simply-supported in accordance with BS EN 1994-1-1, 9.4.2(5), the cross-sectional area of the anti-crack reinforcement above the ribs should be not less than 0.2% of the cross-sectional area of the concrete above the ribs for un-propped construction, and 0.4% of this cross-sectional area for propped construction. The mesh specified in the quick reference Eurocode tables, complies with this clause.
Where forklift truck (or other similar concentrated loading) is expected, 0.5% minimum percentage reinforcement should be used over the supports and the previous stated percentages elsewhere to control cracking. For further information refer to SCI AD150.
In accordance with Steel Construction Institute (SCI) P300 ‘Composite Slabs and Beams Using Steel Decking: Best Practice for Design and Construction, a nominal cover of 25mm is stated for an exposure level XC1, for all concrete cylinder strengths for both normal (C25/30 to C40/50) and lightweight concrete (LC25/28 to LC32/35). This nominal cover of 25mm is the minimum cover of 15mm plus a fixing tolerance of 10mm.
FIRE DESIGN
The capacity of a composite slab with nominal anti-crack mesh in fire is calculated in accordance with Steel Construction Institute NCCI PN005 ‘Fire resistance design of composite slab’. Two fire-design methods can be used in the ComFlor® 9 software, namely ‘Mesh and Deck Fire Method’ or ‘Bar Fire Method’. For further details of the performance of composite slabs with nominal anti-crack mesh in fire, please contact the technical team.
BEAM WIDTH
For all ComFlor® 46 load/span tables, the width of the support beam used is assumed to be 152mm.
DESIGN SUPPORT
The Technical Department at Tata Steel offers a comprehensive advisory service on design of composite flooring, which is available to all specifiers and users. Should queries arise which are not covered by this literature or by the ComFlor® 9 software, please contact us.
DESIGN
SUPPORT
We maintain a friendly technical help desk which is freely available to all Consulting Engineers, and Contractors to assist with all aspects of ComFlor® composite floor design.
DESIGN CALCULATIONS
To assist the specifier, the team are able to provide design calculations, generally dictated by the construction stage condition, the load and span required for service and the fire resistance required for the slab. Our team can also help with specialised design issues such as point loads, requirements for anti crack mesh, openings, etc.
VIBRATION
ComFlor® composite floor decks can meet the most stringent vibration applications, such as those required for National Health Service operating theatres.
SOFTWARE TOOLS
Comprehensive ComFlor® Software is free to download here. The ComFlor® Software provides quick and easy calculations for different building categories, loads, fire performance, spans, vibration, point loads and line loads. Regular updates are sent to all registered users.
SUPPORTING BEAM WIDTH
For all ComFlor® 46 load/span tables, the width of the support beam used is assumed to be 152mm.
FIRE DESIGN
The capacity of the composite slab in fire may be calculated using two methods, either ‘Mesh and Deck Fire Method’ (mesh only and no trough bar reinforcement) or ‘Bar Fire Method’ (trough bottom bar reinforcement only with no contribution from the mesh and profile).
SPECIFICATION SERVICE
Our ComFlor® team are able to provide a comprehensive specification guidance to ensure the correct composite floor specification goes into the contract documents.
IN-HOUSE CPD SEMINARS
Primarily aimed at Engineers and Architects, these free seminars last around 50 minutes, ending with a question & answer session and are delivered by our experienced regional teams. Topics include: Composite floor decking in construction. Structural roof decking in construction. Steel building envelope systems for non-domestic buildings. Factory tour – Insulated Panel Line at Shotton works.
