Hi, I’m encountering a small issue with the “line results on shell” component. I have a symmetric slab system supported by symmetrically positioned columns. The shell is loaded by a uniform area load and its own self-weight. In the next step, I aim to display the principal moment lines. To do this, I’m using a symmetric “list of source of force flow lines (points)”. I expected the principal moment lines display would also appear symmetric, but they look slightly different. I’ve compared areas between two supports where the principal moment lines should ideally be symmetric. What could be causing this discrepancy?
Thank you for your help.