Timber Covering Structures of Churches Built in Naples during Angevin Domination

This research goes trough historical phases of the most ancient churches built during Angevin domination in Naples Kingdom, (thirteenth - fifteenth centuries), and specifically of their covering structures. Between those churches, only St. Mary of Donnaregina and St. Peter from Majella preserve their ancient covering systems, on which a deep study has been done, also tracing the history of the most relevant transformations, partly due to decay, partly due to “remedies” contrasting deformation effects induced by the addition of the ceilings. The efficiency of those interventions has been verified comparing the static analysis on the original schemes with that on the modified ones. The historical research has been extended to the other main Angevin churches in Naples, even if they haven't preserved their ancient timber covering systems, and it has shown that the most widespread covering system was that constituted of simple king post trusses, with slope of about 30°. The only differing one is that of St. Claire church.