Bracing Waffle Slab During Floor Refinishing

Corrugated steel panels used as a working platform during construction and eventually as formwork for sitecast concrete slab.

Bracing waffle slab during floor refinishing. Buoyancy forces control the building if dry floodproofed during a flooding event unless structural measures such as floor anchors or additional slab mass or non structural measures such as allowing the lower level to flood are utilized to offset equalize the buoyancy forces. Hence it is constructed for airports hospitals temples churches etc. Personally i m not a fan of them and haven t dealt with them in a revit context before. 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.

Cornell engineers specialise in footings and slab plans for new houses extensions and renovations. Because the waffle slab is constructed on the ground when the waffle slab is finished it sits about 400mm higher than the surrounding ground. A master builder would not used this type of floor construction if he she is an experienced builder he she knows the pitfalls of constructing a concrete base floor. Two way waffle slab.

This paper deals with the problem of optimum design of reinforced concrete two way ribbed waffle slabs using genetic algorithms. A waffle slab is a two way concrete slab reinforced by ribs in two directions. Upon completion of the waffle slab house the ground around the slab is built up by the builder to reduce the height of the slab above the surrounding ground. Diagonal bracing in pairs between adjacent floor joists to prevent the joists from twisting.

The lateral loads are independently resisted by shear walls. Waffle concrete floor slabs are popular with project exhibition homes builders and builders that are cost sensitive in obtaining a building project. The load carrying capacity of waffle slab is greater than the other types of slabs. 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 slabs are used for larger span slabs or floors and used when there is limited requirement for number of columns. I d like to know the forum s opinion on the best method for modeling waffle slabs. A flat plate system will be. They provide good structural stability along with aesthetic appearance.

Two case studies are discussed. The first is a waffle slab with. Whether you are building a new house an extension or raising your house we can help. Our director matthew cornell is an experienced structural engineer and is easy to talk to.