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| 300 |
Deep Prestressed Concrete
Hollow Block Slab |
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| S250 Block |
Rib Centers 600 mm |
In-Situ Concrete
0.120 m³/m² |
| 440x220x250 |
Self Weight 4.70
kN/m² |
M of Inertia
9.184E-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) |
| 3600 |
3800 |
4500 |
4600 |
5300 |
5900 |
6000 |
6100 |
6300 |
6500 |
6700 |
6900 |
7100 |
7300 |
7500 |
7700 |
7900 |
8100 |
8300 |
8500 |
| 3 |
25.1 |
24.3 |
5.2 |
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| 5 |
40.7 |
28.8 |
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6.5 |
4.5 |
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| 7 |
55.5 |
32.2 |
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5.2 |
4.1 |
3.3 |
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| 8 |
64.0 |
33.7 |
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3.5 |
3.4 |
3.2 |
3.0 |
2.8 |
2.6 |
2.4 |
2.2 |
2.1 |
1.9 |
1.6 |
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| S250 Block |
Rib Centers 750 mm |
In-Situ Concrete
0.143 m³/m² |
| 440x220x250 |
Self Weight 5.15
kN/m² |
M of Inertia
1.255E-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 |
6800 |
4500 |
4600 |
5800 |
5900 |
6000 |
6100 |
6300 |
6500 |
6700 |
6900 |
7100 |
7300 |
7500 |
7700 |
7900 |
8100 |
8300 |
8500 |
| 3 |
39.7 |
42.1 |
11.2 |
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| 5 |
64.1 |
49.9 |
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13.5 |
10.0 |
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| 7 |
86.9 |
55.8 |
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11.3 |
9.3 |
8.0 |
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| 8 |
99.8 |
58.3 |
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8.3 |
8.1 |
7.7 |
7.4 |
7.0 |
6.6 |
6.0 |
5.5 |
5.0 |
4.6 |
4.1 |
3.7 |
2.9 |
2.1 |
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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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