Waffle Floor Details

Waffle slabs are preferred for spans greater than 40 feet 12 m as they are much stronger than flat slabs flat slabs with drop panels two way slabs one way slabs and.

Waffle floor details.

This form of construction is not very common because of the formwork costs and the low fire rating. Concrete floor systems are designed to span in either one direction one way or both directions two way of a structural bay. Detail at slab edge. Detail at slab edge.

Hence it is constructed for airports hospitals temples churches etc. Waffle slabs are used for larger span slabs or floors and used when there is limited requirement for number of columns. Ribbed waffle slab system. For further details refer to the isothermic maps of australia prepared by david baggs baggs 1991.

The effectiveness of earth coupling is determined by climate. Slab insulation can be done with large sheets of high density foam laid all the way under the internal floor panels with only the edge and internal beams penetrating to foundation level. The load carrying capacity of waffle slab is greater than the other types of slabs. The lateral loads are independently resisted by shear walls.

Concrete floor systems are reinforced slab structures designed to satisfy a range of loading and span conditions in a building. A waffle slab or two way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside. Two way joist concrete slab floor waffle slab system analysis and design design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf and unfactored live load of 100 psf. Waffle slab with lost filler blocks.

They provide good structural stability along with aesthetic appearance.