help

[xiaojack]

A planar frame is built in a three-dimensional model, constraining the degrees of freedom outside the plane，What is the reason that the calculation results show that there is still strength outside the plane

[selimgunay]

Because the bottom story column bases should still have moment capacities in the out of plane direction if you are using fiber sections

[xiaojack]

selimgunay wrote:
> Because the bottom story column bases should still have moment capacities
> in the out of plane direction if you are using fiber sections
thanks ，I do use the fiber section，But I don't quite understand why the fiber section has an effect on this, can you explain it for me
thank you very much