incorrect weak axis moment capacity for W150x22 in S-frame steel design CSA S16

MLN
MLN Altair Community Member
in Community Q&A

In S-frame design code check results, I get 25kNm weak axis moment capacity for W150x22 (W6x15) section whereas it should be 13.8kNm as per code CSA - S16:19. Anyone insights?

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Answers

  • Matthew_Sauer1
    Matthew_Sauer1
    Altair Employee

    Hello there, we'd be happy to dig in a bit deeper for you. Would you mind sending your model file, and the observations to our technical support team so we can provide further insights?

    You can create a support ticket through our support link below:

    https://community.altair.com/categories/support

    Regards,
    Matthew Sauer

    Altair Support

  • Matthew_Sauer1
    Matthew_Sauer1
    Altair Employee

    Hi Merlin,

    Just closing the loop on this for anyone who may have followed this request. We reviewed your model, and found that it was deemed class 4 I-shaped member undergoing weak axis bending. Currently, S-STEEL uses the provisions in (F6-3) of the AISC 360-16 to calculate this moment capacity for CSA S16, due to a lack of clarify from CSA S16 codes at the time. We'll look into improving this with the Canadian approach in a future release.

    Regards,
    Matthew Sauer

    Altair Support

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