Waffle Floor Construction
The name waffle comes from the grid pattern created by the reinforcing ribs.
Waffle floor construction. Other articles where waffle slab is discussed. It uses 30 less concrete and 20 less steel than a raft slab. Waffle slabs provide stiffer and lighter slabs than an equivalent flat slab. We would like to show you a description here but the site won t allow us.
Ribbed and waffle slabs. The monolithic poured concrete will form a flat top surface while the rectangular grids form deep concrete beams on the underside with the beams resembling waffle. They provide low floor deflections. 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.
Thicker floor slab must be used a fully precast slab might be too heavy for the machine to hoist under consideration of the loading limitation of the machine thus the construction of a semi precast waffle slab is adopted. Rib spacing of 600 to 1500 mm can be used. The prefabricated waffle slab usually costs higher than the other two options. Ribbed and waffle slabs provide a lighter and stiffer slab than an equivalent flat slab reducing the extent of foundations.
Slab depths typically vary from 75 to 125 mm and rib widths from 125 to 200 mm. They provide a very good form of construction where slab vibration is an issue such as laboratories and hospitals. The construction process involves a building system of concrete slabs that are shored up by columns. Relatively lightweight hence economical.
Waffle slabs are the preferred method of construction for many project builders and prestige home builders alike. The construction principle is to adjust the levelness and dimensions of the. Manufactured from filcor with an external polypropylene skin each waffle mould is made to suit the individual requirements of the project and can. Purpose of waffle slab.
The speed of construction for such slab is faster compared to conventional slab. The simplest and most economical floor system is the flat plate where a plain floor slab about 20 centimetres. Of pan joists called the waffle slab uses prefabricated hollow sheet metal domes to create a grid pattern of voids in a solid floor slab saving material without reducing the slab s strength. This is due to the simplicity of the construction and the potential to save money in concrete volume.