Modelling steel sections inside concrete sections

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1

Hello everyone.

I´m trying to model a thin-walled C section that will be placed inside a concrete section (see image bellow), but I cant find a way to do it.

secção
secção929×868 21 KB

When I try to calculate the section using RSECTION, it says the sections are overlaping and stops the calculation.

Is it possible to model this section? If it is, how do I do it?

3

Hi PedroSoares,

Yes, such cross-sections can be modeled in RSECTION. :blush:

Please first follow these steps:

  1. Activate Finite Element Analysis
    Make sure that Finite Element Analysis is selected in the Basic Data.

    image

  2. Avoid Overlapping
    Ensure that the steel profile does not overlap the concrete cross-section. To guarantee this, you need to create an opening in the concrete cross-section.
    The boundary lines of this opening correspond to the boundary lines of the steel cross-section.

If the error message still appears afterward, please send us your model so that we can take a closer look. :face_with_monocle:

Additional Note:
Recently, there is a new cross-section category in RFEM 6. Your exact cross-section is not yet included, but it might be worth taking a look. :magnifying_glass_tilted_left:

image

Best regards
Niklas Wanke

1 Like
4

Hello @niklas.wanke .

First, I want to thank you for the help and information you already gave.

Now, I´ve tried to apply the method you explained, but I still can´t calculate the section.

I will send you the model for evaluation.

Solução_betão_c200_3.rsc (1.0 MB)

Could you explain what I´ve done wrong?

Best regards,

Pedro