Enriched computational Limit Analysis implementation for large-scale 3D truss-frame structures

The present short note compactly presents some new developments of recently proposed algorithms toward the computational Limit Analysis of 3D truss-frame structures. They concern the definition of the interaction yield domain in the space of the static generalized variables of the plastic joint, where localized plastic activations may take place. First results on a steel frame are presented, showing the enriched computational tools to reveal rather effective, toward structural optimization and form finding purposes.