Waffle slab

Structural concepts

1. GRID SLAB / WAFFLE SLAB

2. METROPOL PARASOL, italy It is the world’s largest wooden Structure which is made up of Waffle system. CHATRAPATI SHIVAJI INTERNATIONAL AIRPORT MUMBAI. 

3. A grid slab is a type of building component that has two directional reinforcement the INTERMEDIATE CROSS BEAMS are cast on a regular square grid that gives the underside of the floor the appearance of a waffle, hence the name. If a column grid is increased from 6 to 12 square or near square, it becomes economical to use a floor with intermediate cross beams supporting thin floor slabs. Greater the depth of the ribs more resistance to the bending.

4. structures that disperse applied loads in multi-directional pattern, with the loads generally following the shortest stiffest routes to the supports. As an applied load is transmitted to the supports through bending of one beam ribs, the load is distributed over the entire slab by vertical shear transmitted from the deflected rib to adjacent ribs. WORKING allows a considerable reduction in dead load as compared to conventional flat slab construction since the slab thickness can be minimized due to the short span between the joists TWO DIRECTIONAL REINFORCEMENT

5. 1 SLAB DEPTH 2 DOME FORMS/ MOULD ( Square metal or fiberglass ) 3 RIBS 4 MODULE COMPONENTS

6. A waffle slab is a two-way concrete slab reinforced by ribs in two directions. The waffle grid form of the floor may be cast around plastic or metal formers laid on timber centering , so that the smooth finish of the soffit may be left exposed. The assembly of the coffer blocks is done on the ground before being lifted into position between the supporting ribs. less labor and quick and easy installation.

7. Waffle slab can be efficiently cantilevered in two directions o Waffle slabs are used for larger span slabs or floors o The load carrying capacity of waffle slab is greater o It has good vibration control capacity o They provide good structural stability along with aesthetic appearance. it is constructed for airports, hospitals, temples, churches o Waffle slabs are lightweight and requires less amount of concrete it is economical. o Construction of waffle slab is easy and quick with good supervision.

8. Spanish architects Alarcon Asociados accommodate electrical cables, plumbing and ventilation ducts within the floor structure rather than hung below. SERVICES HOLEDECK

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