[en] The assessment of the residual flexure capacity of existing reinforced concrete structures affected by corrosion is a key point for reparation and rehabilitation works. A procedure for the evaluation of the residual flexure capacity of corroded RC members due to steel-to-concrete bond deterioration and steel cross-section reduction taking into account the original reinforcement layout is presented. The approach is based on different models provided in the literature to account for the main corrosion effects.. Some examples are provided.

[en] Tensegrity structures are composed by pre-stressed pin-jointed compression (struts) and tension (cables) members that are self-equilibrated. They have had a great development in the last years owing to their ingenious forms, lightweight, deployability and controllability. A challenge related to the design of tensegrity structures is the determination of the force densities during the form-finding process that leads to a stable tensegrity. In this work, the octahedron tensegrity is used as a source of new tensegrity forms. A family of tensegrity structures is a group of them that share a common connectivity pattern. A set of force densities that achieve an equilibrium shape of tensegrities based on the octahedron family was computed analytically. Several examples are shown.