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Difference between Lap Length and Development Length

Difference between Lap Length and Development Length is as below

Lap Length – Lap length is provided to safely transfer load of one reinforcement to another. Lap length is provided such that load is taken by the lap sufficiently enough that no bars lapped fails.
As reinforcement is available in max. length of approx. 11m, there comes the need of lapping of reinforcement in structural members.
Lap length is to be given as per SP-16. Lap length is different for tension bars as well as compression bars.
Development Length – Development Length or anchorage length is provided to transfer the load from reinforcement to concrete safely.
As per IS 456:2000, the calculated tension or compression in any reinforcement at any section needs to be safely transferred to concrete by anchorage So that the member should not be come away from the support.
Anchorage length needs to be provided at all the supports.

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2 responses to “Difference between Lap Length and Development Length”

  1. Vijay Solanki Avatar

    Thank you for taking the time to read my article and for providing your valuable feedback. I truly appreciate your efforts to help me improve my writing skills.

    I am grateful for the mistake you pointed out in my article. It shows that as a writer, I still have room for improvement and I am open to learning. I will definitely take your feedback into account and make the necessary changes to ensure that my work is accurate and informative.

    Once again, thank you for your feedback. Your help is greatly appreciated

  2. Prakash Manickavasagam Avatar
    Prakash Manickavasagam

    Good info.
    Small typo “tension bars as well as compression bard” – Compression bars

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