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For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be
  • a)
    600 mm
  • b)
    750 mm
  • c)
    900 mm
  • d)
    more than 1 m
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
For a simply supported beam of span 15m, the minimum effective depth t...
For s.s slab span/effective depth=20

eff. Depth=span/20

 =15000/20

=750mm
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Most Upvoted Answer
For a simply supported beam of span 15m, the minimum effective depth t...
span/depth= 40/3
Therefore, 15*3/40=1.125= depth
Therefore depth = 1.125.
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Community Answer
For a simply supported beam of span 15m, the minimum effective depth t...
Explanation:

Effective depth of a beam is the distance from the centroid of the tension reinforcement to the top surface of the beam.

The formula for the minimum effective depth to satisfy the vertical deflection limits is given as:

d = (span^3 / (250 x permissible deflection))

where, span = 15 m
permissible deflection = span/250 = 15/250 = 0.06 m (as per IS 456)

Substituting the values in the formula, we get:

d = (15^3 / (250 x 0.06)) = 750 mm

Therefore, the minimum effective depth of the beam should be 750 mm to satisfy the vertical deflection limits.
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For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should bea)600 mmb)750 mmc)900 mmd)more than 1 mCorrect answer is option 'B'. Can you explain this answer?
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