Hey there,
I am currently trying to set up a Gridshell structure and simulate its displacement.
It will be assembled in 4 layers and I am trying to connect the layers insetad of using just single beams for the full height for a more precise simulation. I tried to model “bolts” or just a beam that connects them, but it didn’t work.
Dear @ale_garr,
It looks like the issue stems from your model being made up of several disconnected parts. Take a look here: 25042_Multilayer_01_cp.gh (93.8 KB).
In Karamba3D, elements are only considered connected if they share a common node. To fix this, try using the Line-Line Intersection component in Karamba3D to intersect the geometry before converting the lines into beam elements.
– Clemens
A typical way to achieve this is to have little elements connecting offset layers, as you are trying to do, but you must have the right connectivity there, as @cp1 describes.
A final note is that those connectors have to have one end torsionally released typically during forming and analysis studies (incl. when you have additional bracing elements) and those connectors’ shear stiffness can have an impact on the overall behaviour (too flexible or too stiff) so one can do a sensitivity study of a few stiffness values and decide which one to use.
