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Shape-Thin 9 Analysis of built up cross sections per Eurocode 1993-1-3

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  • Shape-Thin 9 Analysis of built up cross sections per Eurocode 1993-1-3

    Hi,

    I'm dealing with a portal frame with a built-up cross-section made of two C channels oriented back to back (see attached picture), made of cold-formed steel. I'm wondering, how does this not connected cross-section need to be modeled in the Shape-Thin?

    Can RFEM use those results in either check of the cross-section and member in the RF-STEEL EC3 module?

    One more thing that I noticed is when I run the calculation for the cross-sections, when the c/t parts and effective cross-section properties module is activated, in the printout report, in the part of section classification for the limit values for section class (λi) there are zeroes, and the cross-section is classified as a class 1 which is not correct.

    Kind regards,
    Jovan

  • #2
    Hi Jovan.

    Zitat von Jovan Andjelkovic Beitrag anzeigen

    I'm dealing with a portal frame with a built-up cross-section made of two C channels oriented back to back (see attached picture), made of cold-formed steel. I'm wondering, how does this not connected cross-section need to be modeled in the Shape-Thin?
    To do this, you need to use null elements. Here is a video that shows how this works:

    https://youtu.be/skys2CfVJ0w

    In this FAQ you will find more information:

    https://www.dlubal.com/en/support-an...ort/faq/002389

    Can RFEM use those results in either check of the cross-section and member in the RF-STEEL EC3 module?
    Yes, you can.

    One more thing that I noticed is when I run the calculation for the cross-sections, when the c/t parts and effective cross-section properties module is activated, in the printout report, in the part of section classification for the limit values for section class (λi) there are zeroes, and the cross-section is classified as a class 1 which is not correct.
    Can you please upload the appropriate file here so I can take a closer look.

    Frank Faulstich
    Support Team der
    Dlubal Software GmbH
    info@dlubal.com
    https://www.dlubal.com

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