Frame Options

Advantages: simple; holes cause few structural problems.

Advantages: medium range spans; simple; large and small holes can be accommodated; fast; amenable to simple distribution of horizontal services.

Advantages: medium to long spans; lightweight; holes in topping easily accommodated; profile may be expressed architecturally, or used for heat transfer in passive cooling.

Advantages; medium to long spans; lightweight; holes in topping easily accommodated; large holes can be accommodated.

Advantages: longer spans than one-way solid or flat slabs; lightweight; level soffit, profiles may be expressed architecturally, or used for heat transfer; holes in ribbed slab areas cause little or no problem.

Advantage: economical for longer spans and high loads.

Advantages: medium to long spans; lightweight; profiles may be expressed architecturally, or used for heat transfer.

Advantages: medium spans; lightweight; level soffit; profiles may be expressed architecturally, or used for heat transfer.

Advantages: simple and fast formwork and construction; absence of beams allows lower storey heights; flexibility of partition location and horizontal service distribution; architectural finish can be applied directly to the underside of the slab.