Issue 51

M. Guadagnuolo et alii, Frattura ed Integrità Strutturale, 51 (2020) 398-409; DOI: 10.3221/IGF-ESIS.51.29 398 Focussed on Fracture and Damage Detection in Masonry Structures Retrofit assessment of masonry buildings through simplified structural analysis Mariateresa Guadagnuolo, Marianna Aurilio, Giuseppe Faella Department of Architecture and Industrial Design, Università degli Studi della Campania Luigi Vanvitelli, S.Lorenzo ad Septimum Abbey, Aversa (CE) Italy. mariateresa.guadagnuolo@unicampania.it , http://orcid.org/0000-0002-8273-4846 marianna.aurilio@unicampania.it, http://orcid.org/0000-0002-8234-4127 giuseppe.faella@unicampania.it, http://orcid.org/0000-0002-1941-9675 A BSTRACT . The current seismic prevention strategy is based on a unitary approach aimed at a risk mitigation, also at territorial level. The Italian guidelines for the assessment and mitigation of seismic risk of cultural heritage provides indications for the seismic analysis of protected cultural heritage, with the aim of specifying a path of knowledge, assessing the level of safety and planning possible improvements. The Italian building heritage is very vast and heterogeneous and was devastated by earthquakes due to its high vulnerability; therefore, the seismic risk mitigation also requires the availability of simple and handy analysis tools. The aim of this paper is the illustration of an easy, although approximate, procedure for the evaluation of the seismic safety index and the optimization of strengthening interventions. The procedure is applied to buildings located in the province of Caserta. The analyses are performed with reference to two types of buildings that are particularly recurrent and representative of the building heritage of this area and placed in areas with different seismic hazard. K EYWORDS . Seismic risk mitigation; Masonry buildings; Strengthening optimization; Province of Caserta. Citation: Guadagnuolo, M., Aurilio, M., Faella, G, Retrofit assessment of masonry buildings through simplified structural analysis, Frattura ed Integrità Strutturale, 51 (2020) 398-409. Received: 15.06.2019 Accepted: 01.12.2019 Published: 01.01.2020 Copyright: © 2020 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION he Italian building heritage consists of masonry constructions, a wide part of which is located in historic centres, what deserve particular attention as bearers of inestimable values due to their existence over time, which makes it a rich historical, artistic, and cultural environment. The value of these constructions lies in the inestimable meaning that emerges from them, indissolubly linked to the history and evolution of the Italian country [1, 2]. Most of these buildings belong to periods when there were no rules to observe in their construction, and many were built using rules different from those used today and without seismic criteria [3]. Furthermore, existing buildings are often characterized by problems due to degradation and longevity [4-6]. The desire