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
Carrying Capacity
 
 
 
 
 
 
 
 
 
Dead Load
 
 
.
Relative values in % of solid deck
Carrying capacity
25
75
25
Dead load
75
50
40
Dead load/carrying capacity
3:1
1:1
1.5:1
Absolute values in % of solid deck
Carrying capacity
100
200
100
Dead load
100
65
50
Utility value of concrete increased by
200%
100%


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.