Flexión activa en forjados construidos con contrachapado curvado en el plano

Active bending structures incorporate curved beams or shells that are elastically bent from originally straight or flat elements. When both curved and straight elements are coupled, systems stiffness can be enhanced for certain load cases. In this paper, the effects of active bending in twelve floor structure proposals constructed from curved and straight plywood elements is discussed. These solutions are numerically analysed and compared with the reference solution of straight and parallel joists in a Bic-λ diagram, the instrument devised by Frei Otto to compare the material consumption of different structural systems. Simultaneously to the analytical study, three-point bending tests of two full-scale prototypes are carried out. Based on tests findings, a new case of joist with more elements is introduced, which will eventually be the most efficient.