Line hinges between timber frame walls (beam panels)

Hello, if I model two walls with beam panels connected with one vertical line, the mesh generates and the calculation runs smoothly. If I add a line hinge to this vertical line to release moment around local axis x, the mesh doesn't generate. It returns an error about a rigid link that the beam panel generates automatically. How should I create a vertical connection between beam panels that is not rigid?

Hi wolfram,

Welcome to our community. Nice to have you here. :waving_hand:

Can you please send me the file for your problem. That will make it easier for me to understand.

You can attach the file directly in a reply to this thread. Alternatively, you can also send me a private message. Click on my name and then click on "Message".

Frank

Here is the model. I've put only vertical hinges in this simple example.
I would like to model different line hinges between beam panels. But it doesn't work for me.

beam panel_line hinges.rf6 (1,1 MB)

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I upgraded to version 6.11 and now line hinges work. Settings for beam panels are a bit different than before in version 6.09.

Now I have a different problem. How to handle walls that act as deep beams? I don't want them to act as beams - I would like them to transfer vertical forces to wall lintels only.

It's good that the update has solved the problem.

If the walls are not to act as a deep beam, then the x-direction only needs to be released in the line hinges.

It is then important to prevent the upper wall from moving in the longitudinal direction. You can possibly use a nodal support for this.

Frank

Line hinge doesn't solve this. Wall still acts as deep beam because it has big in-plane stiffness. I should somehow reduce stiffness of the wall in one direction.

With beam panels, the stiffness cannot be changed in one direction because the stiffness is generated from the surfaces and members. This would require an orthotropic surface.

Apart from that, I suspect that this would not be the solution to the problem either.

You can replace the upper wall with an orthotropic surface for testing purposes and set the stiffness in the longitudinal direction to zero (or a very small value). I suspect that the model will then become unstable.

If constraints in the upper wall are avoided by line hinges, then the results should be realistic in my opinion.

Frank