What is a flat slab?

•a reinforced concrete slab supported directly by concrete columns without the use of beams

FLAT SLAB

FLAT SLAB

Uses of column heads:

•increase shear strength of slab

•reduce the moment in the slab by reducing the clear or effective span

FLAT SLAB

Uses of drop panels:

•increase shear strength of slab

•increase negative moment capacity of slab

•stiffen the slab and hence reduce deflection

FLAT SLAB

BENEFITS

•Flexibility in room layout

•Saving in building height

•Shorter construction time

•Ease of installation of M&E services

•Prefabricated welded mesh

•Buildable score

FLEXIBILITY IN ROOM LAYOUT

•allows Architect to introduce partition walls anywhere required

•allows owner to change the size of room layout

•allows choice of omitting false ceiling and finish soffit of slab with skim coating

SAVING IN BUILDING HEIGHT

•Lower storey height will reduce building weight due to lower partitions and cladding to façade

•approx. saves 10% in vertical members

•reduce foundation load

FLAT SLAB

SHORTER CONSTRUCTION TIME

FLAT SLAB

SINGLE SOFFIT LEVEL

FLAT SLAB

• Simplified the table formwork needed

EASE OF INSTALLATION OF M&E SERVICES

all M & E services can be mounted directly on the underside of the slab instead of bending them to avoid the beams

•avoids hacking through beams

PRE-FABRICATED WELDED MESH

Prefabricated in standard sizes

•Minimised installation time

•Better quality control

FLAT SLAB

FLAT SLAB

BUILDABLE SCORE

•allows standardized structural members and prefabricated sections to be integrated into the design for ease of construction

•this process will make the structure more buildable, reduce the number of site workers and increase the productivity at site

•more tendency to achieve a higher Buildable score