PSI - Issue 44

P. Sorrentino et al. / Procedia Structural Integrity 44 (2023) 1664–1671 P. Sorrentino et al. / Structural Integrity Procedia 00 (2022) 000 – 000

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1. Introduction The methods for assessing the seismic vulnerability of existing masonry buildings are well suitable for the structural analysis of simple buildings, isolated from other buildings and characterized by a box-type behaviour. However, the Italian historical buildings are not representative only of such simple buildings, as they are constituted in a widespread manner of complex buildings. With the term of complex buildings, we mean the large historical buildings that are the product of extensions and progressive growth over time. For these complex buildings, the code provisions on modelling, analysis, and seismic verification are very generic, and for which there is a perceived need to support the world of the profession with case study illustrations that can be a useful reference for structural engineers. In this contest, in the current paper the typical complexities of monumental building are investigated and discussed throughout the case of San Carlo all’A rena Convent in Naples, in order to underline their structural implications. It is part of an aggregate, with adjacent buildings with different height and a church. Located on a hill, the Convent case study is characterized by variable height and a rectangular plan with a courtyard. During its history, it was subjected to modifications, as the additions of parts in plan and of floors, and alterations, as openings which are often misaligned in vertical direction and are not characterized by the same sizes as the existing ones. For this reason, this masonry building allows the analysis of the typical complexities of masonry structures, as the issues of aggregates, addition of floors, the presence of different occupancy, foundations at different heights and the presence of alterations, as addition of openings. 2. The building case study: San Carlo all’Arena Convent San Carlo all’Arena Convent ( Figure 1) is a masonry building located in the historical center of Naples, in the neighbourhood of San Carlo all’Arena. In Figure 2 a layout plan is given.

Figure 1. 3D Views.