Waffle Floor Slab Design

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.

Waffle floor slab design.

The name waffle comes from the grid pattern created by the reinforcing ribs. The extended part is known as ribs. Slab depths typically vary from 75 to 125 mm and rib widths from 125 to 200 mm. The lateral loads are independently resisted by shear walls.

A flat plate system will be. 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. The main objective of this project work is to come up with a design of waffle slab. The overall depth of the floor typically varies from 300 to 600 mm with overall spans of up to 15 m if reinforced longer if post tensioned.

1 2 objectives of study. Ribbed or waffle slab is a slab system which consists of series of parallel reinforced concrete t beams framing into reinforced concrete girders. The spacing between the ribs should be in general 20 30 inch. We would like to show you a description here but the site won t allow us.

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.