Bubble DeckMANALAYSAY

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Bubble Deck

It comprises a hollow, flat slab that spans in two directions, in which plastic balls are incorporated to replace, and eliminate the concrete in the middle of a conventional slab which does not contribute to its structural performance.

Effect of Bubble Deck

Weight reduction of the deck

The dead load of the Bubble deck is 1/3 lesser than a solid deck with the same thickness– and that without effecting the bending strength and the deflection behavior of the deck.

Advantages:

•Cost savings – requires up to 35 per cent less concrete than traditional concrete structures

•Fast construction – virtually no formwork, no downturn beams or drop heads, and fast coverage of up to 35m2 per panel

•Green attributes – less use of construction materials, less energy consumption, reduced CO2 emissions

•Reduced health and safety risks – off-site manufacturing, fewer vehicle movements and crane lifts, simple installation

Advantages

• It allows freedom of design with non-rectilinear plan forms.

• Construction is less weather dependent as there is no need to erect load-bearing block work to support floor slabs, which is taken off the critical path.

• Elimination of down-stand beams means the problems and the costs of routing services around, or through, structure, are avoided.

• Reduced foundation sizes because there is up to 50% less structural dead-weight.

• Concrete usage is significantly reduced; 1kg of recycled plastic replaces 100kg of concrete. It is, therefore, environmentally friendly.

• It uses fewer building elements compared to steel frame and metal decking systems and so reduces erection time.

• There is no need for additional fire protection – the completed Bubble Deck structure provides 1 to 2 hours protection dependent upon concrete cover specified.

• Cross-bracing and intermediate supports are eliminated.

Advantages

Earthquake resistance

Seismic forces impacting a building are proportional to the horizontally accelerated mass, which has to be absorbed by the vertical structure.

A BubbleDeck slab with its reduced dead load, will consequently reduce these forces.

A Bubble Deck slab and column system is without singularities and acts like an elastic membrane, sufficient to transfer horizontal forces to stiff cores/walls