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In case of 2-way slab, the limiting deflection of the slab is
- a)primarily a function of the lon g span
- b)primarily a function of the short span
- c)independent of long or short spans
- d)dependent on both long and short spans
Correct answer is option 'B'. Can you explain this answer?
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In case of 2-way slab, the limiting deflection of the slab isa)primari...
Limiting Deflection of 2-way slab:
In the case of a 2-way slab, the limiting deflection of the slab is primarily a function of the short span.
Explanation:
- Short Span: The deflection of a slab is influenced by the span of the slab. In the case of a 2-way slab, the short span plays a more significant role in determining the deflection limits. This is because the short span is usually the smaller of the two spans, and deflections tend to be more noticeable and critical in this direction.
- Load Distribution: In a 2-way slab, the load is distributed in both directions, leading to more uniform stress distribution across the slab. This uniform distribution results in a more balanced deflection pattern, with the short span being the governing factor.
- Code Requirements: Design codes and standards typically provide specific deflection limits for slabs based on the span length. These limits are set to ensure the structural integrity and serviceability of the slab. For 2-way slabs, the deflection criteria are often more stringent for the short span.
- Reinforcement: The reinforcement layout in a 2-way slab is designed to cater to both the long and short spans. However, the design considerations for deflection control, such as slab thickness and reinforcement spacing, are more critical for the short span.
Therefore, in the case of a 2-way slab, the limiting deflection is primarily a function of the short span due to the structural behavior, load distribution, code requirements, and reinforcement design considerations.
In the case of a 2-way slab, the limiting deflection of the slab is primarily a function of the short span.
Explanation:
- Short Span: The deflection of a slab is influenced by the span of the slab. In the case of a 2-way slab, the short span plays a more significant role in determining the deflection limits. This is because the short span is usually the smaller of the two spans, and deflections tend to be more noticeable and critical in this direction.
- Load Distribution: In a 2-way slab, the load is distributed in both directions, leading to more uniform stress distribution across the slab. This uniform distribution results in a more balanced deflection pattern, with the short span being the governing factor.
- Code Requirements: Design codes and standards typically provide specific deflection limits for slabs based on the span length. These limits are set to ensure the structural integrity and serviceability of the slab. For 2-way slabs, the deflection criteria are often more stringent for the short span.
- Reinforcement: The reinforcement layout in a 2-way slab is designed to cater to both the long and short spans. However, the design considerations for deflection control, such as slab thickness and reinforcement spacing, are more critical for the short span.
Therefore, in the case of a 2-way slab, the limiting deflection is primarily a function of the short span due to the structural behavior, load distribution, code requirements, and reinforcement design considerations.
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