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What are slabs used for?
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 is one way slab in construction?
The one-way slab is supported by a beam on two opposite sides only. The two-way slab is supported by the beam on all four sides. In a one-way slab, the load is carried in one direction perpendicular to the supporting beam. In a two-way slab, the load is carried in both directions.
What is the difference between a one way and two way slab?
The basic difference between One Way and Two Way Slab is that the bending moment occurs only in one direction i.e. the shorter direction in One Way Slab while in Two Way Slab bending moment occurs in both directions i.e. shorter and longer.
What is slab system?
This system consists of beams framing into columns and supporting slabs spanning between the beams. It is a very traditional system. The depth of slab between the beams can be initially sized using the span-to-depth ratios for a flat plate. Prestressing is not normally used with this system.
What do you mean by two way slab?
The two-way slab is a slab which is generally supported on all sides of walls or beams, and whose length to breadth ratio is less than two and it twists or bends in both direction while transferring the loads to the walls or beams.
What is one way joist slab?
A one-way joist floor slab consists of a series of small, reinforced concrete T beams that are connected with girders that in turn carried by the building column. T beams are known as joists which are formed by setting steel pan at a constant spacing.
Why Distribution steel is provided in one way slab?
Distribution reinforcement is given to deal with shrinkage stress and temperature effects. As the slab is inflexibly fixed at the ends, this shrinkage will be limited by the support, which will prompt liable tensile stress in the slab.
What is a one way slab?
One way slab essentially acts as a shallow beam with a large width. The slabs supported all four sides also behave as one-way slabs if the longer span ratio (ly) to the shorter span (lx) is greater than two.
How is a slab supported on two opposite sides?
The slab is supported to the two opposite sides RCC beams responsible for carrying the slab load along one direction. In one way, sab the beams length difference is vast, so the load will not transfer toward the shorter RCC beams. In these slabs in one direction, the primary reinforcements were provided. Equal or greater than 2.
What are the design considerations for slabs?
Its 6 Design considerations The slab is supported to the two opposite sides RCC beams responsible for carrying the slab load along one direction. In one way, sab the beams length difference is vast, so the load will not transfer toward the shorter RCC beams. In these slabs in one direction, the primary reinforcements were provided.
What is the ratio of two way slabs?
Rectangular slabs are supported on two adjoining, three, or four sides with the ratio of longer to shorter span lower than 2, which carry the load by flexure in two vertical directions are known as two-way slabs. How to calculate a one way or two way slabs?