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The horizontal distance between parallel main reinforcements in RC slab shall not be more than
  • a)
    3 times effective depth of slab
  • b)
    2 times effective depth of slab
  • c)
    4 times effective depth of slab
  • d)
    5 times effective depth of slab
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The horizontal distance between parallel main reinforcements in RC sla...
Understanding Reinforcement in RC Slabs
In reinforced concrete (RC) slabs, proper spacing of the main reinforcements is crucial for structural integrity and performance. The horizontal distance between parallel main reinforcements is governed by several factors, including the effective depth of the slab.
Effective Depth of Slab
- The effective depth refers to the distance from the top of the concrete slab to the centroid of the tensile reinforcement.
- It plays a significant role in determining the slab's load-carrying capacity and deflection characteristics.
Recommended Spacing
- The maximum horizontal distance between parallel main reinforcements should not exceed 3 times the effective depth of the slab.
- This guideline ensures that the reinforcements are adequately placed to manage bending moments and shear forces throughout the slab.
Reasons for the Limit
- Structural Performance: Closer spacing of reinforcements helps in distributing loads more evenly, reducing the risk of cracking.
- Deflection Control: Adequate reinforcement spacing minimizes deflection, which is crucial for maintaining serviceability.
- Durability: Proper reinforcement placement also enhances the durability of the slab by preventing excessive stress concentrations.
Conclusion
Following the guideline of not exceeding 3 times the effective depth for spacing parallel main reinforcements ensures the structural integrity and performance of RC slabs. This practice is aligned with recognized design standards and contributes to safer, more efficient construction practices.
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The horizontal distance between parallel main reinforcements in RC slab shall not be more thana)3 times effective depth of slabb)2 times effective depth of slabc)4 times effective depth of slabd)5 times effective depth of slabCorrect answer is option 'A'. Can you explain this answer?
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