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what is one way & two way slab

what is one way & two way slab

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2 Answers

manu saxena
46 Points
11 years ago

One way slabs are designed to transfer their loads to only two opposite support walls. Generally for spans up to 3.60 meters and with length/breadth ratio is greater than 0.60 one way slabs can be provided.the reinforcement will be along the longer direction.

Two way slabs are designed to transfer their loads to all the four support walls. Generally for spans greater than 3.60 meters and with length/breadth ratio is less than 0.60 two way slabs can be provided.the reinforcements will be placed along the length and the breadth i.e. the reinforcements will be perpendicular to one another.

A one way slab, have it structural strength in shortest direction. 
A two way slab, have it structural strength in in two direction.

Ashwin Sinha
520 Points
11 years ago

Dear Usman,

 

One way slabs bend in one direction and load is distributed in one direction only. They behave like a beam. slabs with length/breadth ratio above 2 are considered as one way slabs.

Two way slabs are those where length/breadth ratio is below 2. The load is distributed in all four sides. Deflection and bending is reduced to a great extent compared to one way slab.

In both case main reinforcement is provided along long span.

 

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