I use element felting component for elements that don't have intersection together. so displacement get better but stresses is not true yet. when I introduce segments as beam the stress occurred separately in each segment while it is expected that there is more stress in point of intersections.
I try to analyse a reciprocal vault by karamba, but I'm not sure about results. it seems there is something wrong specially about displacement and I think this structure behavior different, but I don't understand where is my fault.