Built Heritage and BIM: the palace of Cosimo at the “Fortezza Vecchia” in Livorno takes a second step in the Digital age

H-BIM models are becoming an effective support for the protection and conservation of historical heritage artifacts. The application of these new digital tools arisen several issues regarding the semantic parsing method, often due the topological relation that exist between architectural and structural elements. Moreover, the growing adoption of survey systems, often based on the achievement of a point clouds, arisen problems of converting this data into simplified BIM model version. The object of this essay is to show preliminary result of a methodology that, starting from consideration that derives from structural analysis, will allow to define the architectural element for the HBIM model. The method was applied for the case study of the Palace of Francesco I de Medici at the “Fortezza Vecchia” in Livorno