decks ...Technical Specs: Rib and Block
The rib and Block Decking System is based upon the patented integration technique - the direct way of linking air and steel. It is a system which uses two way spanning precast ribs and concrete or polystyrene void formers.
| The Effect | |||||||||||
Solid Deck |
Rib & Block same thickness |
Rib & Block same capacity |
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| Carrying Capacity | |||||||||||
| Dead Load |
|
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| Relative values in % of solid deck | |||||||||||
| Carrying capacity | 25 |
75 |
25 |
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| Dead load | 75 |
50 |
40 |
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| Dead load/carrying capacity | 3:1 |
1:1 |
1.5:1 |
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| Absolute values in % of solid deck | |||||||||||
| Carrying capacity | 100 |
200 |
100
|
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| Dead load | 100
|
65
|
50 |
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| Utility value of concrete increased by | 200% |
100% |
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Compositions:
- The simple Rib and Block Decks may be delivered to the building site as pre-cast factory-made slabs
- In the filigree-slab Rib and Block system the bottom side of the 'bubble-lattice' unit is furnished with a pre-cast concrete layer which on the building site replaces the horizontal part of the formwork. Compared with standard filigree constructions the filigree-slab Rib and Block Deck offers several advantages, one of the being that these units are joined without any loss in effective depth.
For transportation reasons, all compositions must normally have a width of less than 3 metres, but connecting the units on the building site poses no problem at all. The entire carrying capacity of such combined slabs is thereby fully maintained.