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Recent content by nglclrk

  1. nglclrk

    Crack widths for RC Section under Flexure and Axial Loads

    Yakpol, Thanks for your post (and for the attached file), it helped a lot. I'm used to designing to british standards and suddenly having to switch to american codes is taking me out of my comfort zone. Thanks again.
  2. nglclrk

    Crack widths for RC Section under Flexure and Axial Loads

    Thanks guys. I'm not really looking for any precision - I think that anyone who tries to use the theory of elasticity to accurately predict the behaviour of a very non-linear structure such as an RC section is deluding themselves. I'm just trying to satisfy the ACI code requirements and I...
  3. nglclrk

    Crack widths for RC Section under Flexure and Axial Loads

    I'm trying to find a method (compliant with American codes and standards) for determining crack-widths in RC sections under combined flexure and axial loads only (without success). I'm used to working with BS8110 and BS8007 which gives specific crack-width limits and also an equation to...
  4. nglclrk

    ACI-318 Shear link spacing

    Thanks JAE. I hadn't thought of adopting that approach for the minimum shear reinforcement but I see that the code commentary does something similar to what you suggested down beside equ 11-15 when designing rebar for excess shear.
  5. nglclrk

    ACI-318 Shear link spacing

    I am designing a member where the shear stress ?Vc ? Vu ? 0.5?Vc, thus requiring me to provide shear links. Equ 11-13 (Av,min = 0.75*fc^.5*(bw*s)/fyt) includes the term, s (link spacing). My question is...am I expected to use (or calculate) a particular value for s (s = d/2 for instance)? Or...
  6. nglclrk

    Interaction Diagram Confusion (RC Section)

    StrEIT and frv, Thanks to both of you guys for your replies. It's great to have people who are willing to share their knowledge. That makes sense and I was hoping that it would be the case because now it's similar to the british standards approach. Thanks again
  7. nglclrk

    Interaction Diagram Confusion (RC Section)

    I'm a British engineer who has mostly used British Standards. This is my first time using ACI 318 to create an interaction diagram. I'm having a lot of trouble and I hope some of you can set me straight. Any help would be much appreciated. I have a lot of questions but I'll start off with the...

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