In this paper the ultimate resistance for shear not directed as principal axis of inertia of RC columns sections is evaluated by means of a numerical method. The sections may be of any shape (circular too) and are also subjected to axial force and biaxial bending. Although the importance of this topic for capacity design rule in seismic design, no indication is present in Italian code nor in Eurocodes.
For this paper is available an extended abstract after the text in Italian