Hello everyone,
I am currently trying to create a parametric model for a vault in order to subsequently conduct a parameter study with RFEM6.
The creation of the geometry worked well. I am currently stuck on the line release for the inner edges of the circular segments. These should act in tension and be able to open.
Do you have any tips on how to make the assignment of line to surface as robust as possible in Grasshopper? My code is attached.
Thank you very much!
Best regards
Lennart
260312_Parametrisches Gewölbe.gh (47.4 KB)
Hi lennartclauhsen,
Fundamentally, it initially makes sense to manually set the numbering of the lines and surfaces in Grasshopper to define a clear assignment for the line release component.
The numbering can, for example, be linked to the parametric model via the Series component:

This allows precise control over which surfaces are released on which line.
The existing value lists for the input of the nonlinearity of the line release type offer more inputs than are available in RFEM. To make the right selection here, it is sometimes helpful to define the desired settings in RFEM and import them into Grasshopper. This clearly displays the required inputs for the RFEM components. You can find the GH file for the import here:
Import Line release.gh (15.9 KB)

For error analysis, it is also helpful to start the export via a “Boolean Toggle.” This will display hints about incorrect or missing inputs.

Best regards
Paul Sivolgin
Hello Mr. Sivolgin,
thank you for your reply! I have reset my script and reorganized everything:
Top lines: 100+
Bottom lines: 200+
Joints: 300+
Support lines: 10,20
I believe the assignment of the Line Release also worked. Unfortunately, my joints still do not open. I feel very close to it, but even after several hours in GH today, I unfortunately cannot find the error. :)
I would be very happy if you could take a look at my script and give me a hint where I am going wrong!
GH file:
260317_Parameterisches Gewölbe V2.gh (61.4 KB)
RFEM6 file:
Parametrisches Gewölbe.rf6 (1.0 MB)
Thank you very much and best regards
Lennart
PS: With customer support like this for students, it’s fun to dare to tackle "bigger" problems! Many thanks for that.
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