|
|
Base Steel Thickness |
0.60mm, 0.90mm, 1.00mm, 1.20mm |
|
Steel Grade |
ASTM A448 Grade E
BS EN 10147 or BS 2989
AS 1397 |
|
Yield Stress |
Minimum 550 Mpa |
|
Zinc Coating |
272 g/m˛ minimum coating mass (both sides) |
|
Mechanical Property |
Min Y/P 550 Mpa
Min T/S 610 Mpa
Min E/L 10% |
Notes: For 1.2mm, ASTM A446 Grade D, minimum 350Mpa
|
Slab Thickness
(mm)
Ds |
Maximum span between props (m) |
|
0.6 mm
Section |
0.75 mm
Section |
0.9 mm
Section |
1.0 mm
Section |
1.2 mm
Section |
|
Single Span |
≥2 Spans |
Single Span |
≥2 Spans |
Single Span |
≥2 Spans |
Single Span |
≥2 Spans |
Single Span |
≥2 Spans |
|
100 |
2.38 |
2.83 |
2.67 |
3.17 |
2.87 |
3.40 |
3.00 |
3.55 |
3.20 |
3.79 |
|
105 |
2.35 |
2.79 |
2.64 |
3.13 |
2.83 |
3.36 |
2.96 |
3.51 |
3.16 |
3.74 |
|
110 |
2.32 |
2.75 |
2.60 |
3.08 |
2.79 |
3.31 |
2.92 |
3.46 |
3.12 |
3.70 |
|
115 |
2.29 |
2.72 |
2.57 |
3.04 |
2.76 |
3.27 |
2.88 |
3.42 |
3.08 |
3.65 |
|
120 |
2.26 |
2.68 |
2.53 |
3.00 |
2.73 |
3.23 |
2.85 |
3.38 |
3.04 |
3.61 |
|
125 |
2.24 |
2.65 |
2.50 |
2.97 |
2.69 |
3.19 |
2.82 |
3.34 |
3.01 |
3.56 |
|
130 |
2.21 |
2.62 |
2.48 |
2.93 |
2.66 |
3.16 |
2.78 |
3.30 |
2.97 |
3.52 |
|
135 |
2.19 |
2.59 |
2.45 |
2.90 |
2.63 |
3.12 |
2.75 |
3.26 |
2.94 |
3.48 |
|
140 |
2.16 |
2.56 |
2.42 |
2.87 |
2.61 |
3.09 |
2.73 |
3.23 |
2.91 |
3.45 |
|
150 |
2.12 |
2.51 |
2.37 |
2.81 |
2.55 |
3.03 |
2.67 |
3.16 |
2.85 |
3.38 |
|
160 |
2.07 |
2.46 |
2.33 |
2.76 |
2.51 |
2.97 |
2.62 |
3.10 |
2.80 |
3.32 |
|
170 |
2.04 |
2.42 |
2.28 |
2.71 |
2.46 |
2.92 |
2.57 |
3.05 |
2.75 |
3.25 |
|
180 |
2.00 |
2.37 |
2.24 |
2.66 |
2.42 |
2.87 |
2.53 |
2.99 |
2.70 |
3.20 |
|
190 |
1.97 |
2.33 |
2.21 |
2.61 |
2.38 |
2.82 |
2.48 |
2.95 |
2.65 |
3.15 |
|
200 |
1.94 |
2.30 |
2.17 |
2.58 |
2.34 |
2.78 |
2.45 |
2.90 |
2.61 |
3.10 |
Note:
Spans calculated in accordance with BS 5950 : Part 4
: 1994.
Tables based on normal weight concrete (2300 kg/m˛).
Deflection limited to span/130 (including ponding
allowance)
Table verified by BRANZ
|
