How can I model stirrup in solid beam in TNO Diana or Midas FX+?? Or any other software?
I have studied that I can model stirrups as vertical bar element when making beam as 2D but I am confused because my beam is solid and I need to model the stirrups. Is it necessary to model stirrup, if not that what other thing should I do to consider the stirrup effect?
Thank you
Hello Fatima,
if you want to count the effect of stirrups in your detail model there are two way to do that;
1. using smeared modeling approach in which model the concrete as solid element and the steel as volume in certain direction (embedded steel) so you can assign two volume one in the longitudinal direction and the second volume perpendicular on that .
2. using two material for concrete constitutive model one for core which is confined model and the second is plain concrete model (and try to mesh your section to be easy to assign the confined model to the core part of the section and unconfined model tho the outer parts (cover part) as can see in attached imag
Best wishes
I have made stirrups as a 1D bar element using embedded reinforcement. Is this approach correct? You can see the attached image as well, showing concrete, main reinforcement and stirrups.
Hello
Sorry, I forgot to mention that for you at the previous answer that some publication mentioned that using the first approach "only " does not consider the effect of stirrups in concrete confining.
In regard of the model that you did actually I don't have enough knowledge about Diana options but if you have use the one bar element as a part of the solid element (not individual element) I supposed it should work but any case you have to verify your model with a previous work (much better if you use with experimental data).
Hi Fatima,
Just choose the option Rectangular 2D to draw them and define them as steel material and reinforcement mesh.
Regards
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