No convergence of nonlinear problem

[proyectos7L7LJZ]

Good afternoon, I hope someone can help me. My model doesn't converge and I can't find the problem. At the moment I am only interested in the load case 1 to 3 to do a pre-sizing. The floor system that I seek to model is "losacero". Thank you.

https://www.dropbox.com/s/4a1y1sxysnnwgrr/2.1.355%20PAREDES%202%20-%20BODEGA%20Y%20OFICINAS%205.rtd?...

[Stephane.kapetanovic · Accepted solution]

hi @proyectos7L7LJZ 

your braces are declared as lattice bars and you have segmented them at each intersection, purlin or cladding stringer. this causes instabilities which increases the risks of non-convergence.

Best regards

[proyectos7L7LJZ]

Thanks, I have corrected my braces but the problem still exists. Do you have another idea of whats happening?

https://www.dropbox.com/s/wd7lzy6wqft6xsn/2.1.355%20PAREDES%202%20-%20BODEGA%20Y%20OFICINAS%205.rtd?...

[Stephane.kapetanovic]

hi @proyectos7L7LJZ 

read my remarks on private message

[Simau · Accepted solution]

@proyectos7L7LJZ 

You have too many releases in your srtucture.

I'll first test the model in linear configuration:

- No release, no PDelta, no "tension only"

- Add releases by step and test the model at each step

If the linear model is ok, Add tension only and test the model