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The development length of a deformed reinforcement bar can be expressed as (1/k) (Φσs/ τbd).
From the IS:456-2000, the value of k can be calculated as _________.
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- 6.4
- 6.9
- 6.7
- 6.8
Correct Option: A
| Ld = | 4τbd |
For deformed bars, τbd is increased by 60%
| ∴ Ld = | 4× (τbd × 1.6) |
| = | 6.4τbd |
| = | kτbd |
∴ k = 6.4
