The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions

The paper presents a new numerical tool, the NOSA-ITACA code, for the structural analysis of masonry buildings of historical interest. The code, resulting from integration of the finite element code NOSA and the open-source platform SALOME, is being developed within the framework of the NOSA-ITACA project, funded by the Region of Tuscany. In this paper some preliminary results are described with the aim of illustrating the main features of the NOSA-ITACA code. After a short description of the constitutive equation used to model the mechanical behaviour of masonry constructions, some details are given concerning the code's implementation. Lastly, a dynamic analysis of the "Rognosa" tower in San Gimignano, performed via the NOSA-ITACA code, is presented to exemplify application of the code.