La sección abierta y cerrada bajo solicitación excéntrica… en una viga curva. Un tributo a Javier Manterola

In this paper, an exact linear-elastic formulation for the analysis of curved beams with planar centerline has been developed. The purpose is identical to that of an article which Javier Manterola authored in 1976: to deepen in the behavior of beams when they are eccentrically loaded by transverse forces. When incorporating curvature in the formulation, new sectional parameters appear; they condition the structural behavior of the beam, which is governed by the torsional slenderness. The relation between these parameters and the curvature has been studied. Finally, the structural response of beams of open and closed cross-section has been evaluated in terms of curvature and torsional slenderness. This work provides a rigorous method to assess the response of curved beams under torsion and is therefore an extension of the traditionally established criteria for straight beams.