Select the INCORRECT statement.

Concept:

One-way slab:

• Rectangular slabs are supported only on two opposite sides by unyielding supports and are uniformly loaded along the direction parallel(not multiple directions, option 1 is saying) to the supports are one-way slabs.
• The span ratio 'l_y / l_x > 2'.
• In one way slab, the load is carried in one direction perpendicular to the supporting beam.
• The main reinforcement is provided along a shorter span.
• The distribution reinforcement is provided along a longer span.
• The maximum moment in the slab is along a shorter span direction.

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Two-way slab:

• The two-way slab is supported by the beam on all four sides.
• The span ratio 'l_y / l_x \(\leq\) 2'.
• The two-way slab is bent in both spanning side directions while load transfer.
• In a two-way slab, the load is carried in both directions.
• In a two-way slab, both twisting and bending moments are generated.

Torsion reinforcement shall be provided at any corner in a two-way slab which is simply supported on both edges meeting at the corner.

• It shall consist of top and bottom reinforcement, each with layers of bars placed parallel to the side of the slab and extending from the edges a minimum distance of 1/5th of the shorter span.

Torsional reinforcement need not be provided at any corner where both edges are continuous.

• Torsional reinforcement of 50 % of three-quarters of the area required for the maximum mid-span moment in the slab shall be provided at a corner contained by edges over only one of which the slab is continuous.