.. _R3.03.03: **r3.03.03** 3D Connections — Beam, 2D — Beam ============================================== **Summary:** This document explains the principle used in *Code_Aster* to link 3D or 2D continuous environment modeling and beam modeling. In 3D, this connection results in 6 linear relationships connecting the movements of the set of 3D nodes (3 degrees of freedom per node) linked with the beam node with the 6 degrees of freedom of this node. In 2D, this connection results in 3 linear relationships connecting the movements of the set of 2D nodes (2 degrees of freedom per node) linked with the beam node with the 3 degrees of freedom of this node. .. toctree:: :hidden: self .. toctree:: :maxdepth: 2 :numbered: Pr_sentation Le_raccord_3D-poutre Le_raccord_2D-poutre Quelles_utilisations_peut-on_faire_de_cette_mod_lisation__ Bibliographie Description_des_versions_du_document