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The effective span, of the cantilever slab at the end of a continuous slab is,

  • a)
    Length up to the face of the support + half of the effective depth

  • b)
    Clear span + half of the effective depth of the slab

  • c)
    Length up to the centre of the support

  • d)
    Clear span + effective depth of the slab 

Correct answer is option 'A'. Can you explain this answer?
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The effective span, of the cantilever slab at the end of a continuous ...
Correct option is A. Length up to the face of the support + half of the effective depth
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The effective span, of the cantilever slab at the end of a continuous ...
**Explanation:**

In the case of a cantilever slab, it is supported at one end and projects horizontally from the support. The effective span is the distance between the cantilever support and the point where the slab is considered to be simply supported.

The effective span of a cantilever slab is the same as the clear span, which is the distance between the supports. The correct answer is option 'A', which states that the effective span is the clear span.

**Reasoning:**

When a slab is cantilevered, it is designed to resist bending and shear forces. The cantilever portion of the slab is supported by the main body of the slab, which acts as a continuous beam.

To determine the effective span of a cantilever slab, we need to consider the behavior of the slab as a continuous beam. In a continuous beam, the effective span is the distance between the supports where the bending moment is maximum.

In the case of a cantilever slab, the bending moment is maximum at the point where the slab is considered to be simply supported. This point is the end of the clear span, where the cantilever slab transitions from being cantilevered to simply supported.

Therefore, the effective span of a cantilever slab is the same as the clear span, which is the distance between the supports.

**Example:**

For example, let's say we have a cantilever slab with a clear span of 6 meters and a cantilever length of 3 meters. The effective span of the cantilever slab would be 6 meters, which is the same as the clear span.

By considering the clear span as the effective span, we can calculate the bending moment and shear forces on the cantilever slab accurately and design it accordingly.

Therefore, the effective span of a cantilever slab is the same as the clear span.
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The effective span, of the cantilever slab at the end of a continuous slab is,a)Length up to the face of the support + half of the effective depthb)Clear span + half of the effective depth of the slabc)Length up to the centre of the supportd)Clear span + effective depth of the slabCorrect answer is option 'A'. Can you explain this answer?
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