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| 170 |
Deep Prestressed Concrete
Hollow Block Slab |
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| N170 Block |
Rib Centers 600 mm |
In-Situ Concrete
0.055 m³/m² |
| 440x220x170 |
Self Weight 2.82
kN/m² |
M of Inertia
1.392E-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) |
| 2500 |
2700 |
2900 |
3100 |
3300 |
3500 |
3600 |
3800 |
4000 |
4200 |
4400 |
4500 |
4600 |
4800 |
5000 |
5100 |
5300 |
5500 |
5700 |
5900 |
| 3 |
12.4 |
24.8 |
7.8 |
6.4 |
5.3 |
4.4 |
3.6 |
3.0 |
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| 5 |
19.1 |
29.4 |
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5.2 |
4.5 |
3.8 |
3.3 |
2.8 |
2.6 |
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| 7 |
24.5 |
32.9 |
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3.7 |
3.2 |
2.8 |
2.6 |
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| 8 |
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| N170 Block |
Rib Centers 750 mm |
In-Situ Concrete
0.066 m³/m² |
| 440x220x170 |
Self Weight 3.06
kN/m² |
M of Inertia
2.020E-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) |
| 2500 |
2700 |
2900 |
3100 |
3300 |
3500 |
3600 |
3800 |
4000 |
4200 |
4400 |
4500 |
4600 |
4800 |
5000 |
5100 |
5300 |
5500 |
5700 |
5900 |
| 3 |
19.5 |
37.6 |
13.3 |
11.1 |
9.3 |
7.9 |
6.7 |
5.7 |
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| 5 |
29.6 |
44.6 |
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9.1 |
7.9 |
6.9 |
6.1 |
5.3 |
5.0 |
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| 7 |
36.7 |
49.9 |
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6.4 |
5.7 |
5.0 |
4.8 |
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| 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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