Issue 46

A. Maione et alii, Frattura ed Integrità Strutturale, 46 (2018) 240-251; DOI: 10.3221/IGF-ESIS.46.22 249 Figure 12: The extrados of the vault of the "Sala Camuccini". C ONCLUSIONS methodological project aimed at the assessment of the seismic safety of a building of historical and architectonic value cannot ignore the importance of the in-depth knowledge of the building itself. The knowledge acquisition phase consists of multiple investigations into an equally numerous number of fields. This paper presents some aspects of the investigation campaign carried out by the authors in the framework of the Italian ARCUS-MiBACT Project on the “Assessment of the seismic safety of National Museums of Italy” supported by the Ministry of the Cultural Heritage (MiBACT). In particular, the management of multi-source information presented here was aimed at identifying the typology of the vaulted and horizontal structures upon the first level of the Capodimonte Museum located in Naples (Italy). Generally, the use of analytical instruments of varying nature, compatible for use with a building of value, is a professional practice that strives to bring to the light both the characteristics of the building and issues affecting it. These instruments can also shed new light on methodological approaches to adopt to gain a better understanding of the construction, highlighting the need for the planner to gain a full understanding of the characteristics of the place before intervening, with respect to the building’s identity. In this line, the use of the thermography integrated with other sources of information, such as visual inspections, architectural survey, historic analysis and hypotheses of critical interpretation, resulted to be very useful for the chosen case study. In fact, the thermographic images of the intrados surfaces of the analyzed vaulted structures allowed a first distinction between structural masonry vaults and no-load-bearing vaults. For the latter category, two constructive typologies were recognized, as timber and masonry vaults. They are characterized by the presence of overlying horizontal structures, which have to fulfil the bearing function. In order to properly identify the features of these horizontal structures, instrumental investigations were then critically interpreted and integrated with other information derived from the visual inspections and the critical analysis of the documentary sources. The presented methodological approach allowed achieving a complete characterization of the horizontal structures upon the first level of the Capodimonte Museum in Naples, but it can be recognized as easily extendable to any historical building of international interest. It actually represents a basic requirement to define a reliable model of the structural behaviour of the building aimed at the evaluation of its structural configuration and its seismic safety. A CKNOWLEDGEMENTS he authors acknowledge the sponsorship of Italian MiBACT through the ARCUS Project on the “Assessment of the seismic safety of National Museums of Italy” (2014-2015). The authors also wish to thank the Stress-scarl district that performed the diagnostic campaign and Professor G. Manfredi for his scientific and logistic support. R EFERENCES [1] DCCM (2011). Directive of the Chairman of the Council of Ministers, Seismic risk evaluation and reduction of the cultural heritage, referred to the Technical Rules for Constructions NTC08, Official Gazette of the Italian Republic no. 47, February 26. (in Italian) A T