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Damage Assessment And Retrofitting Of Marchesale Castle (San Giuliano Di Puglia)


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R. Cami, C. Alessandri, M. Indirli & A. Tralli


After the earthquake that struck the Molise Region (Italy), some ENEA researchers were involved in several post-seismic activities in San Giuliano di Puglia. Ancient and notable masonry cultural heritage structures (MCUHESs) suffered severe damage or partial collapse, including the old Marchesale Castle. This paper deals with a repairing proposal of the building, developed in the framework of a PhD thesis, elaborating diagnostics and dynamic campaigns results, providing numerical calculations and suggesting interventions in agreement with the existing code. Its main purpose is to enhance the building’s seismic performance, avoiding conflicts between conservation and safety. Keywords: seismic behaviour and vibrations, assessment and retrofitting. 1 Introduction 1.1 A brief information on the seismic event occurred on October 31st, 2002 A moderate earthquake struck Molise (Italy) on October 31st, 2002. The first shock (M 5.4) was followed by another (M 5.3) on the following day. Spread damage was evident in San Giuliano di Puglia, a small town located 5 km from the epicenter. The maximum Intensity at the site was estimated to be VIII-IX MCS, observed during both the 1456 and the 2002 events. The damage was not uniformly distributed inside San Giuliano narrow area, characterized by different levels of seismic hazard and structural vulnerability. ENEA experts took part in these activities following the seismic event: a) the emergency, under the coordination of the Civil Defense; b) the post-emergency, carrying out a detailed


seismic behaviour and vibrations, assessment and retrofitting.