Beamgrid - Moment Value Problem

Grasshopper Karamba3D
1

grafik
grafik840×592 117 KB

grafik
grafik832×487 110 KB

BeamGrid.3dm (199.0 KB)
gh_BeamGrid.gh (62.3 KB)

Hello everyone,

I’m new to using Karamba3D, and this is my first project analyzing a structure with it. I’ve been struggling to understand why the moment values are so high at the top beam grid, which is supposed to span 30 meters without any intermediate supports.

Does anyone have an idea why this might be happening, or would be willing to take a look at my Grasshopper file to check for any possible mistakes?

Thanks in advance for your help!

2

Hi, there are some fundamental issues with your model.

  1. all your elements need to go into one model and not separate models, otherwise you will see that karamba calculates them as separate models
  2. you have applied supports nearly everywhere, therefore you have such bending moments in your beams.
    image
    image1429×749 189 KB

If you fix these issues, then the model should calculate properly.