Cross Bracing problems!

Anonymous — Mon, 10 Oct 2016 09:26:18 GMT

Hi,

I'm designing a structure which requires cross bracing. The structure seemed to be verified at every stage until I introduced cross bracing. When I analyse the structure I have been getting the various warnings and errors:

No convergence of nonlinear problem.
Matrix is not positive definite - the critical load may have been exceeded
Instability at nodes

I have looked through previous threads and solved problems and found that I should be analysis in a 'Non-Linear' way once bracing is introduced but still can't shift the warnings.

Would it be possible to have a look at my model and help me with bracing members (tension bars)?

Kind Regards,

Sabir

Please see model attached.

Re: Cross Bracing problems!

Artur.Kosakowski — Mon, 10 Oct 2016 10:22:49 GMT

Try to delete all releases and then apply them in steps checking the results.

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

topic Re: Cross Bracing problems! in Robot Structural Analysis Forum

Cross Bracing problems!

Re: Cross Bracing problems!