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Load Spans
| Ashzip
400 0.7mm Steel
(Self weight 7.75kg/m²) |
| Span
(m) |
1.00 |
1.25 |
1.50 |
1.80 |
2.00 |
2.50 |
3.00 |
245mm
Halter |
Down Load |
5.04 |
4.87 |
4.69 |
3.94 |
3.44 |
2.81 |
2.18 |
Wind Uplift |
6.00 |
4.35 |
2.70 |
2.26 |
1.96 |
1.44 |
0.91 |
295mm
Halter |
Down Load |
6.03 |
5.66 |
5.29 |
4.43 |
3.85 |
3.23 |
2.61 |
Wind Uplift |
4.67 |
3.61 |
2.55 |
2.14 |
1.86 |
1.37 |
0.87 |
245mm
Halter |
Down Load |
7.01 |
6.45 |
5.88 |
4.91 |
4.26 |
3.65 |
3.03 |
Wind Uplift |
3.34 |
2.87 |
2.40 |
2.02 |
1.76 |
1.29 |
0.82 |
| Ashzip
400 0.9mm Aluminium
(Self weight 3.50kg/m² ) |
| Span
(m) |
1.00 |
1.25 |
1.50 |
1.80 |
2.00 |
2.50 |
3.00 |
245mm
Halter |
Down Load |
6.00 |
5.50 |
5.00 |
4.18 |
3.63 |
2.79 |
1.95 |
Wind Uplift |
5.60 |
3.73 |
1.85 |
1.39 |
1.09 |
0.90 |
0.71 |
295mm
Halter |
Down Load |
7.93 |
6.64 |
5.34 |
4.36 |
3.71 |
3.03 |
2.35 |
Wind Uplift |
5.19 |
3.49 |
1.78 |
1.36 |
1.08 |
0.90 |
0.71 |
345mm
Halter |
Down Load |
9.86 |
7.77 |
5.67 |
4.54 |
3.78 |
3.26 |
2.74 |
Wind Uplift |
4.77 |
3.24 |
1.70 |
1.32 |
1.07 |
0.89 |
0.71 |
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| All loads are characteristic
working loads in kN/m² based on 4 or more spans
In deriving the above figures the following criteria was applied:-
Strength
Safety factor for vertical loading 1.6.
Safety factor for wind uplift loading 1.4.
Safety factor for detachment of sheeting from halters under
wind uplift loading 2.0.
Deflection
The download figures are based on a deflection limit of
span / 200
The wind uplift figures are based on a deflection limit of
span / 180 (aluminium).
The wind uplift figures are based on a deflection limit of
span / 120 (steel).
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Contractors
