series of elastic and nonlinear element

[blanche]

hello everyone,
i am trying to model a column using nonlinear elements on the plastic hinge and elastic element on top.
However, i am getting an error during the static analysis... is my model feasible? or can anyone suggest
what can be done?

thanks in advance...

[fmk]

it is feasible .. check your boundary conditions .. if that is not the problem, replace swap out the nonlinear section with an elastic one, if that works problem in section definition, if it fails swap out the elements for an elastic one, if that works problem in your ele definition. if it fails problem with those boundary conditions.