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A simply supported beam is considered as a deep beam if the ratio of effective span to overall depth is less than:
  • a)
    1
  • b)
    4
  • c)
    3
  • d)
    2
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A simply supported beam is considered as a deep beam if the ratio of e...
A simply supported beam is considered as a deep beam if the ratio of effective span to overall depth is less than 2.
A deep beam is a beam that has a relatively large ratio of depth to span, usually when the depth of the beam is more than twice the width. The term "deep" is used to describe beams that have a greater depth-to-span ratio than typical beams.
For simply supported beams, the effective span is the distance between the centerlines of the supports and the overall depth is the distance from the top of the beam to the bottom of the beam.
The ratio of effective span to overall depth is a measure of the depth of the beam, and when this ratio is less than 2, the beam is considered deep.
This is because in deep beams, the stresses are mainly concentrated in the bottom fibers, which increases the shear stresses. And thus need to be designed with special consideration, such as with the use of web reinforcement.
Hence the answer is 2 which corresponds to option D
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Most Upvoted Answer
A simply supported beam is considered as a deep beam if the ratio of e...
Deep Beam:

A beam is a horizontal structural element that carries vertical loads across two supports. A deep beam is a beam whose depth is significantly greater than the span. The depth of the beam is measured from the top of the beam to its bottom.

Effective Span:

The effective span of a beam is the distance between the centers of the supports.

Ratio of Effective Span to Overall Depth:

The ratio of effective span to overall depth (L/D) is a measure of how deep a beam is. The deeper the beam, the lower the L/D ratio.

L/D Ratio for a Deep Beam:

A simply supported beam is considered a deep beam if the ratio of effective span to overall depth is less than 2.

Explanation:

When the ratio of the effective span to overall depth of a beam is less than 2, the beam is considered to be deep. In this case, the shear force and bending moment are no longer uniformly distributed along the span of the beam. The shear force and bending moment are concentrated in the region near the supports, where the stresses are highest.

A deep beam is designed differently from a conventional beam because the shear force and bending moment are concentrated in the region near the supports. The design of deep beams requires additional reinforcement near the supports to resist the high stresses.

Conclusion:

In conclusion, a simply supported beam is considered a deep beam if the ratio of effective span to overall depth is less than 2. The design of deep beams requires additional reinforcement near the supports to resist the high stresses.
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A simply supported beam is considered as a deep beam if the ratio of effective span to overall depth is less than:a)1b)4c)3d)2Correct answer is option 'D'. Can you explain this answer?
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