Why is rotation at the bottom of the MVLEM load-bearing wall so difficult?

[annabellerice]

I am working on a pushover model for an MVLEM shear wall, and I am trying to add springs at the base because a fully-fixed base is not the best reflection of reality. . However, I think I may have made a mistake somewhere with the interactions or the zero-length elements because it is difficult to tell what has been selected with the nodes overlapping at the zero length elements, so I would greatly appreciate any help and guidance you can provide

[STKO Team]

When you define interactions in coincident geometries, it's easier if you first move them apart, create the interaction, and finally move them to their original position