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The effective span of a simply supported slab is-
- a)distance between the centers of the bearings
- b)clear span plus the effective depth of the slab
- c)clear distance between the inner faces of the walls plus twice the thickness of the wall
- d)None of the above
Correct answer is option 'C'. Can you explain this answer?
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The effective span of a simply supported slab is-a)distance between th...
As per IS 456 : 2000, clause 22.2 (a)
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Hence the correct answer is option C.
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The effective span of a simply supported slab is-a)distance between th...
The effective span of a simply supported slab is the clear distance between the inner faces of the walls plus twice the thickness of the wall. This means that the answer is option 'C'.
Explanation:
- Simply supported slabs are supported on two opposite sides by walls or beams. They are designed to resist the bending and shear forces that are caused by the loads acting on them.
- The effective span of a simply supported slab is the distance between the supports that contributes to the load-carrying capacity of the slab. This span is used to calculate the design moments and shear forces that the slab will experience.
- The effective span is influenced by the geometry of the slab and the supports. In general, the effective span is shorter than the clear span of the slab because the edges of the slab are supported by the walls or beams.
- The effective depth of the slab is the distance from the top surface of the slab to the center of the reinforcing steel. This depth is used to calculate the design moments and shear forces that the slab will experience.
- Option 'A' is incorrect because the distance between the centers of the bearings is the clear span of the slab, which is longer than the effective span.
- Option 'B' is incorrect because the effective span does not include the effective depth of the slab. The effective depth is used to calculate the design moments and shear forces but does not affect the effective span.
- Option 'C' is correct because the clear distance between the inner faces of the walls plus twice the thickness of the wall represents the effective span of the slab. This distance takes into account the geometry of the slab and the supports and reflects the actual distance over which the load is carried by the slab.
- Option 'D' is incorrect because option 'C' is the correct answer.
Explanation:
- Simply supported slabs are supported on two opposite sides by walls or beams. They are designed to resist the bending and shear forces that are caused by the loads acting on them.
- The effective span of a simply supported slab is the distance between the supports that contributes to the load-carrying capacity of the slab. This span is used to calculate the design moments and shear forces that the slab will experience.
- The effective span is influenced by the geometry of the slab and the supports. In general, the effective span is shorter than the clear span of the slab because the edges of the slab are supported by the walls or beams.
- The effective depth of the slab is the distance from the top surface of the slab to the center of the reinforcing steel. This depth is used to calculate the design moments and shear forces that the slab will experience.
- Option 'A' is incorrect because the distance between the centers of the bearings is the clear span of the slab, which is longer than the effective span.
- Option 'B' is incorrect because the effective span does not include the effective depth of the slab. The effective depth is used to calculate the design moments and shear forces but does not affect the effective span.
- Option 'C' is correct because the clear distance between the inner faces of the walls plus twice the thickness of the wall represents the effective span of the slab. This distance takes into account the geometry of the slab and the supports and reflects the actual distance over which the load is carried by the slab.
- Option 'D' is incorrect because option 'C' is the correct answer.
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