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| 255 |
Deep Prestressed Concrete
Hollow Block Slab |
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| S205 Block |
Rib Centers 600 mm |
In-Situ Concrete
0.106 m³/m² |
| 440x220x205 |
Self Weight 4.05
kN/m² |
M of Inertia
5.801E-04 m4/m |
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| Qk
Service Loads in kN / m² for given Spans |
| Wire Option |
Ultimate Moment Mu
kNm/m |
Ultimate Shear Vu
kN/m |
Spans
(mm) |
| 3500 |
3600 |
4500 |
4600 |
4800 |
5000 |
5200 |
5400 |
5600 |
5800 |
5900 |
6000 |
6200 |
6400 |
6600 |
6800 |
7000 |
7200 |
7400 |
7600 |
| 3 |
20.9 |
22.5 |
5.0 |
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| 5 |
33.8 |
26.7 |
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6.2 |
4.4 |
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| 7 |
45.8 |
39.9 |
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5.1 |
4.7 |
4.4 |
4.1 |
3.9 |
3.6 |
3.4 |
3.3 |
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| 8 |
52.9 |
31.2 |
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3.5 |
3.3 |
3.1 |
2.9 |
2.7 |
2.4 |
2.1 |
1.8 |
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| S205 Block |
Rib Centers 750 mm |
In-Situ Concrete
0.122 m³/m² |
| 440x220x205 |
Self Weight 4.41
kN/m² |
M of Inertia
7.903E-04 m4/m |
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| Qk
Service Loads in kN / m² for given Spans |
| Wire Option |
Ultimate Moment Mu
kNm/m |
Ultimate Shear Vu
kN/m |
Spans
(mm) |
| 3500 |
3600 |
4500 |
4600 |
4800 |
5000 |
5200 |
5400 |
5600 |
5800 |
5900 |
6000 |
6200 |
6400 |
6600 |
6800 |
7000 |
7200 |
7400 |
7600 |
| 3 |
33.0 |
39.0 |
10.2 |
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| 5 |
53.0 |
46.2 |
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12.7 |
9.5 |
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| 7 |
71.3 |
51.7 |
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10.7 |
10.2 |
9.6 |
9.1 |
8.7 |
8.1 |
7.3 |
6.9 |
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| 8 |
82.0 |
54.1 |
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8.0 |
7.4 |
6.7 |
6.1 |
5.6 |
5.1 |
4.6 |
3.6 |
2.8 |
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Slabs Propped
during
construction at equal
centers of 1.5m or less |
Superload Limited
by Strength
Moment
Shear |
Superload Limited
by Deflection
Less than 15mm always
Less than span/250 |
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Site maintained by:
TradePage |
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Designed by: Matt Jones-- |
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