What is meaning of flat slab?
Definition of flat-slab construction : reinforced-concrete floor construction not requiring beams and girders to transmit the floor load to supporting columns.
What is flat slab and its types?
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’.
What is the use of flat slab?
Flat slabs are mostly used in large industrial structures, parking garages, ramps, warehouse, high rise buildings and hotels. 2. They are also used where uses of beams are not required.
What is flat slab write its advantages?
Advantages of Flat Slab
| 1 | Flexibility in room layout. Partition walls can be placed anywhere. Offers a variety of room layout to the owner. False ceilings can be omitted. |
|---|---|
| 6 | Prefabricated welded mesh. Standard sizes Less installation time Better quality control. |
| 7 | Auto sprinkler is easier. |
What is slab system?
A slab is a structural element, made of concrete, that is used to create flat horizontal surfaces such as floors, roof decks, and ceilings. A slab is generally several inches thick and supported by beams, columns, walls, or the ground.
What are the parts of a flat slab?
Major components of flat slab are capital/head, drop panel, columns strip and middle strips.
What is thickness of flat slab?
The flat slab should have a minimum thickness of 125 mm.
What is the difference between flat slab and solid slab?
The main difference between the two types is “drop beam”. A solid slab has drop beams whereas a flat slab has no drop beams, as a result the main problem with flat slabs is the “punching Shear” from the columns.
What are the components of flat slab?
What is slab reinforcement?
Reinforcement detailing of a slab is done based on its support conditions. Slab may be supported on walls or beams or columns. Slab supported directly by columns are called flat slab. Slab supported on two sides and bending takes place predominantly in one direction only is called One Way Slab.
What does slab mean in construction?
Definition: a molded layer of plain or reinforced concrete, flat, horizontal (or nearly so), usually of uniform but sometimes of variable thickness, and supported by beams, columns, walls, other framework, or on the ground.- ACI Concrete Terminology.
How do you make a flat slab?
The slab is checked for punching shear at a distance of d/2 all around the face of the column head. The load on the slab panel excluding the circular area of diameter (D + d) is the punching shear force. Provide 8mm @ 230mm c/c. The exterior negative moment is fully taken by the column strip.
What is a flat slab?
The flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns. The column tends to punch through the slab in Flat Slabs, which can be treated by three methods:
What are the rules of design reinforcement for flat slabs EC2?
• At internal columns 0.5 Atshould be placed in a width = 0.25 × panel width. • At least two bottom bars should pass through internal columns in each orthogonal directions. Particular rules for flat slabs EC2: Cl. 9.4 Concise: 12.4.1 • Design reinforcement at edge and corner reinforcement should be placed within be cz cy y be= cz+ y A cz y cy
What is the shear resistance of slabs without reinforcement?
Most slabs do not require shear reinforcement ∴Check VEd< VRd,c Where VRd,c is shear resistance of members without reinforcement vRd,c= 0.12 k (100 ρIfck)1/3 ≥ 0.035 k1.5f ck 0.5 Where VEd> VRd,c,
How to increase the shear strength of flat slab?
The column tends to punch through the slab in Flat Slabs, which can be treated by three methods: Shear strength of flat slab is increased by using column heads.