In this article, we want to talk About Waffle Slab . Join us .
- reinforcement on the outside of the material, giving it the shape of the pockets on a waffle.
- This type of reinforcement is common on concrete, wood and metal construction.
- This makes a waffle slab perfect for large flat areas like foundations or floors.
Where this is used ?
- Waffle slab can be used as both ceiling and floor slab. They are used in the areas where less number of columns are provided, i.e. it is basically used in the areas which has huge spans.
- The concrete waffle slab is often used for industrial and commercial buildings while wood and metal waffle slabs are used in many other construction sites.
- This form of construction is used in airports, parking garages, commercial and industrial buildings, bridges, residences and other structures requiring extra stability.
- The main purpose of employing this technology is for its strong foundation characteristics of crack and sagging resistance. Waffle slab also holds a greater amount of load compared with conventional concrete slabs.
Features of the waffle slab
- They are used on flat sites.
- They are wholly above ground.
- No beam excavation is required.
- No controlled or rolled fill is used.
- Cardboard slab panel is used
- No beam down drag from clay occurs.
- Shrinkage of slab Is lower than stiffened raft.
- They use 20% less steel than a stiffened raft.
Construction of Waffle Slab
- Grids are generally limited to the interior of a slab, leaving one or two of the forms out to create a solid fill around the supports.
- The solid fills provide the strength required for shear transfer to the supports.
- The fills also reduce the compression stresses at the sofit of the floor around the supports, thus avoiding the necessity of bottom reinforcement in this region.
- Picture illustrate typical grid construction using unbounded tendons.
- A light top mesh over the grid is generally the only top reinforcement at the interior of the floor panels.
