Description
Initially added to our product range in 2002, the original TR80 has undergone further research and development, evolving to the popular TR80+ profile in use today. This 80mm deep trapezoidal profile offers long un-propped spans reducing the number of structural support members required, making it a popular choice for low to medium storey buildings.
Benefits
• Reduced concrete volume compared to other deck available
• 140mm slab depth required to achieve a typical one hour fire rating
• TAB-Deck™ fibre concrete option
Gauges
• 0.9mm
• 1.0mm
• 1.2mm
Specification
• 600mm cover width
• 80mm deep (92mm to top re-entrant)
Steel Grade
• S350
• S450
Profile Properties
| Nominal Thickness mm | Design Thickness (bare steel) mm | Depth of Profile mm | Weight kg/m² | Weight kN/m² | Height of Neutral axis mm | Area of Steel mm²/m | Moment of Inertia cm⁴/m |
|---|---|---|---|---|---|---|---|
| 0.9 | 0.86 | 80 / 92* | 11.33 | 0.111 | 42.3 | 1385 | 172.9 |
| 1.0 | 0.96 | 80 / 92* | 12.54 | 0.123 | 42.4 | 1539 | 192.3 |
| 1.2 | 1.16 | 80 / 92* | 15.06 | 0.148 | 42.5 | 1860 | 231.1 |
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Fire Insulation Thickness
Minimum Insulation Thickness (x) of Concrete (mm)
| Fire Rating | NWC | LWC |
|---|---|---|
| 1 Hour | 60 | 60 |
| 1.5 Hours | 70 | 70 |
| 2 Hours | 80 | 80 |
| 3 Hours | 115 | 100 |
| 4 Hours | 130 | 115 |
The image and table above details the minimum insulation thickness required to suit fire design criteria in accordance with SCI PN005c-GB or BS5950 Part 8.
Concrete Volume and Weight
| Slab Depth mm | Volume of Concrete m³/m² | Weight of Concrete (Normal Weight) Wet (kN/m²) | Weight of Concrete (Normal Weight) Dry (kN/m²) | Weight of Concrete (Lightweight) Wet (kN/m²) | Weight of Concrete (Lightweight) Dry (kN/m²) |
|---|---|---|---|---|---|
| 140 | 0.096 | 2.40 | 2.31 | 1.93 | 1.84 |
| 150 | 0.106 | 2.65 | 2.55 | 2.13 | 2.03 |
| 200 | 0.156 | 3.90 | 3.75 | 3.14 | 2.98 |
Deflection – This table is based on concrete poured to a constant thickness and does not take account for deflection of the decking or supporting beams (as a guide, to account for the deflection of the decking, a concrete volume of span/250 should be added to the figures indicated). Concrete Weight – These tables indicate concrete weight only and do not include the weight of decking or reinforcement. Concrete weights are based on the concrete densities specified in BS EN 1991-1-1 as follows: Normal Weight Concrete – 2550kg/m. (wet) and 2450 kg/m. (dry). Lightweight Concrete – 2050kg/m. (wet) and 1950 kg/m. (dry).
