Precast wall elements

[m.vdgrijp]

I try to make a building out of precast element but when I calculate moments in the millions.

Can anyone tell me what i did wrong, I have attached the model

[Krzysztof_Wasik · Accepted solution]

Hi @m.vdgrijp 

Model seems to be statically unstable. Displacements are almost infinite. Try to correct model by deleting unnecessary releases.

Results seem to be reasonable after deleting all releases in model. 

[m.vdgrijp]

Thx, I didn't think to look at the displacements. Great tip 

[Stephane.kapetanovic]

It seems that there are instabilities in the model.
You should review the releases conditions for beams at roof as their stability is not guaranteed.

The bars turn on themselves, it is possible that there are no calculation nodes created at the intersection of the bars, the structure has significant horizontal displacements under permanent loads.

You have to make a choice on the primary and secondary bars and split the secondaries.
If i launches computation without releases the behavior is better but still comprises instabilities.
Some panels do not adjoin well with adjacent ones of the same edges. Ideally the panels should have the same corners.

This creates disjunctions of plates and a generation of small mesh elements. It would be necessary for you to review each panels with those on which they are supported.
The model you have given is without loads, only self-weight.

Best regards