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  1. CLT123

    Are closed stirrups required for all beams?

    Thanks! This makes sense. The “or” had evaded me. - J
  2. CLT123

    Are closed stirrups required for all beams?

    Thank you for the response. Can you explain what scenario using U stirrups without a cap tie would be acceptable? How do you get around the integrity reinforcement requirement? - J
  3. CLT123

    Are closed stirrups required for all beams?

    In reading through the Structural Integrity reinforcement requirements for cast-in-place beams (ACI 318-14 Section 9.7.7) I am led to the conclusion that all beams both perimeter and non-perimeter require closed stirrups based on the below logic: - All beams are required to have some amount of...
  4. CLT123

    Concrete Wall Alternate Design Procedure Requirements - Restrained Against Rotation (ACI 11.8)

    OldDawgNewTrick Thank you for the reply! This clears things up. - J
  5. CLT123

    Concrete Wall Alternate Design Procedure Requirements - Restrained Against Rotation (ACI 11.8)

    The listed requirements for using the alternate design procedure for Out of plane slender wall analysis [ACI 318-14 Section 11.8] are listed a – e in Section 11.8.1.1. The Commentary [R11.8.1.1] for these listed requirements appears to list an additional requirement that the top of the wall is...
  6. CLT123

    Historical Steel Shapes

    Ingenuity This is great. I really appreciate the help!
  7. CLT123

    Historical Steel Shapes

    I am Working on a building from 1968 with Historical Steel sections called out as 10B19 and 12B16.5 Looking through the Historical AISC Excel database I haven't been able to come across any steel shapes that match theses callout. The Closest sections I can find for the 12B16.5 is a B12...
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