How do you size a waffle slab?
Waffle slab design The distance between ribs is typically 915 mm (3 ft). The height of the ribs and beams should be 1⁄25 of the span between columns. The width of the solid area around the column should be 1⁄8 of the span between columns. Its height should be the same as the ribs.
How thick is a waffle slab?
Dimensions. 1090mm square standard size and four different thickness: 175mm deep – Often used for “A” Soil Classification sites and special purposes*
How do you calculate concrete for a waffle slab?
Concrete Calculations
- Multiply the total lineal meter of the edge beam by 150×150.
- Multiply total lineal meter of edge beam by the total height of slab by 50mm. Divide total m^2 of slab by 8.35 on 260 mm high slab.
- Add totals of the earlier steps together and then add a further 3% to allow for wastage.
What is two way Flatplate?
The two-way flat plate slab is simply a slab of uniform thickness directly supported on columns, and it is generally suitable for relatively light loads. Two-way flat plates can be used for span up to 8m using reinforced concrete and up to 11m with the post-tensioned system.
What is waffle pod slab?
WHAT ARE WAFFLE PODS? This is where the concrete is sitting on (and around) a series of boxes (or Pods) set out in a grid pattern. Think of a waffle pod as a raft lying flat above your soil.
What is the size of a waffle pod?
1090mm square
Norslab waffle pods are 1090mm square and come in three thicknesses 165mm/225mm/300mm for use on different Soil Classification sites. A better way of building concrete slabs for new homes, extensions or commercial buildings.
How wide are waffle pods?
Features and Benefits
| Width Back | Measurement Front |
|---|---|
| 175mm | 0.2079 m3 |
| 225mm | 0.2673 m3 |
| 300mm | 0.3564 m3 |
| 375mm | 0.4455 m3 |
How does a waffle slab work?
Waffle slabs achieve their strength by varying the height of the slab above ground. The higher the slab above ground – the deeper the concrete beams. The deeper the beams – the more stiffness the system has. The more stiffness the slab has, the more it can resist ground movement.
What size are waffle pods?
They come in three thicknesses for use on different sites: 165mm – Suitable for “A” Soil Classification sites and special purposes* 225mm – Suitable for “S” and “M” Soil Classification sites* 300mm – Suitable for “M” and low “H” Soil Classification sites*