“…The applicability of the existing models to this structural ty-pology should be investigated in order to evaluate their effectiveness, and, eventually, some improvements or new proposals. To this aim, a proper database of tests existing in literature on shear-critical piers has been collected, including tests performed at the Department of Structures for Engineering and Architecture of the University of Naples Federico II and presented in ( [11], [12]). This database includes 25 experimental tests, representing the experimental state-of-the-art about non-conforming RC columns with hollow rectangular cross section and exhibiting a shear failure (with or without flexural yielding).…”