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When I call OpenSees from a Matlab script, I face this error:

invalid command name "pattern"

While running the same code (pattern Plain 1 Linear {...}) just through the Opensees works correctly.
How can I fix it?

Thank you in advance

Thank you very much for your answers. I want to consider 3 degrees of freedom, 2 translations and 1 rotation. The following is the code that leads to this warning: WARNING BandGenLinLapackSolver::solve() -LAPACK routine returned 3 wipe all model BasicBuilder -ndm 3 -ndf 6 set m 383576 set I 1598234 ...

giovannimilan wrote: > to keep it simple at the beginning, you could try with 3 zero length > elements placed in series. Each zero length element would be a non-linear > spring in which the behavior is described in the 3 directions (2 displ and > 1 rot). > > It is a very rough schema of the structur...

Hi

How could I model a 3-story structure with lumped mass at the floors level. I want to consider the strength of each story by spring and assign it 3 degrees of freedom (2 translations and 1 rotation).

Thanks in advance