If the Slab is supported from all of its 4 sides and ratio of longer span to shorter span is less than 2 then it is two way slab.
If the Slab is supported from all of its 4 sides and ratio of longer span to shorter span is more than 2 then it is one way slab.
If the Slab is supported from its 2 opposite sides, then it is one way slab.
Reply To: Slabs
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