What is flat slab floor system?
What is flat slab floor system?
Flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Flat slab is defined as one sided or two-sided support system with sheer load of the slab being concentrated on the supporting columns and a square slab called ‘drop panels’.
How do you build a flat slab?
A flat slab is a one-way or two-way system with thickenings in the slab at the columns and load bearing walls called ‘drop panels’. Drop panels act as T-beams over the supports. They increase the shear capacity and the stiffness of the floor system under vertical loads, thus increasing the economical span range.
What is the minimum thickness of flat slab?
The minimum thickness of Flat slab shall be 125 mm.
What should be the thickness of flat slab?
The appropriacy of thickness has to be determined for shear and bending moments. The flat slab should have a minimum thickness of 125 mm.
What is a concrete flat plate?
Introduction. Reinforced concrete flat plate is a type of structural system containing slabs with uniform thickness supported directly on columns without using beams. Flat plates are commonly used in buildings where relatively low gravity loads are applied.
What are the advantages of flat plates?
Advantages of a Flat Plate Floor System A flat plate floor system does not demand any beam. The use of zero beams helps to have underfloor spaces and more service areas. The flat plate floor system requires simple formwork. This system is suitable for a direct fix or sprayed ceiling.
What is the minimum depth for a concrete slab?
What is the minimum thickness for concrete? A: Concrete is typically applied at a thickness of 2 inches or more, but the thicker it is, the stronger the slab will be. Four inches is most common for a slab.
Where flat slab is used?
Uses Of Flat Slab:
- Flat slabs are mostly used in large industrial structures, parking garages, ramps, warehouse, high rise buildings and hotels.
- They are also used where uses of beams are not required.
- Or where the structure requires less formwork.
How do you find the minimum thickness of a flat slab?
Standards like ACI 318 have specified the minimum thickness of the slab based on the span of the slab.
- Simply Supported Slab = Span / 20.
- One End Continuous Slab = Span / 24.
- Both End Continuous Slab = Span / 28.
- Cantiliver = Span / 10.
Where are flat plates used?
Flat plates are commonly used in buildings where relatively low gravity loads are applied. A major concern for flat plates is punching failure of slab in the vicinity columns due to high stress concentration.
What is the minimum depth of slab?
Minimum thickness should not be less than 4.75 inches not forgetting the factor of safety. Standard concrete floor slab thickness in residential construction is 4 inches, five to six inches is recommended if the concrete will receive occasional heavy loads, such as mortar homes or garbage trucks.
What is the normal thickness of slab?
In general, 6 inch (150mm) slab thickness is considered for residential and commercial buildings with reinforcement details as per design. Methods used for finding slab thickness varies for different types of slabs.