PSI - Issue 44

ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceD rect Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 44 (2023) 2052–2057

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. The structural assessment under earthquake of ancient masonry churches remains a challenging task due to their intrinsic characteristics, i.e. the complexity of their geometry, the strong non-linear behaviour of the masonry material, the high computational burden related to the three-dimensional models adopted for the analyses, etc. The Italian Standard suggests to study the seismic behaviour of such a type of structures analysing separately the global response to seismic loads and the local behavior of a-priori defined portion of the building involved into collapse mechanism. In this work, the authors try to establish a link between the global behavior of the church and the assessment of the local mechanism by performing a two steps procedure based on: i) the detection of the main vibration modes of the whole building with the identification of the structural macro-elements responsible for the overall seismic vulnerability and ii) the definition of the failure patterns due to earthquake by carrying out a series of finite element non-linear static analyses on the previously-identified macro-elements. The procedure will be applied to a case of study: the church of St. Martino dei Gualdesi in Castelsangelo on the Nera river (Italy). © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Church; masonry; FEM. 1. Introduction Church masonry buildings represent a large portion of the European cultural heritage. This type of structures, designed to withstand only the self-weight, are highly vulnerable to seismic actions (Cescatti et al. (2020), Clementi (2021), de Felice et al. (2021), Malena et al (2019)). Since they are often located in high-risk seismic areas, the need to develop numerical tools capable of describing their structural response under earthquake, is essential to estimate the cost and the extent of the safety interventions required to improve the seismic behavior. 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy The structural assessment under earthquake of ancient masonry churches remains a challenging task due to their intrinsic characteristi s, i.e. the complexity of t eir ge metry, the str g non-lin a behaviour of the masonry material, the high ompu at onal burden related to the three-dimensional models ad pted f r the nalyses, etc. The Italian Sta dard suggests to study the seism c behaviour of such a ype of structure a ysing separately the global re ponse to s ismic loads and the local behavior of a-prior defined po tion of the building involv d i to collapse mechanism. In this work, the authors try to establish a link tween the global b havior f the church an the assessme f the local mechanism by perf ming tw steps procedure b sed on: i) the detection of t e main vibration modes of the whole building with the identification f the structural macro- lement responsibl for the verall seismic ulnerability and ii) the definition of the failur patterns due t earthquake by carrying out a seri of finit element non- in ar static a alyses on the previously-ide ti ied m cro-elem nt . The procedure will be applied to a case of study: the church of St. Martino dei Gualdesi in Castelsangelo on the Nera river (Italy). © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review u der responsibility of h scientific committe of the XIX ANIDIS C nference, Seismic Engineering in Italy Keywords: Church; masonry; FEM. 1. Introduction Church masonry buildings represent a large portion of the European cultural heritage. This type of structures, designed to withstand only the s lf-w ight, e highly vulnerable to seismi actions (Cescatti et al. (2020), Clementi (2021), e Fel ce et al. (2021), Malena et al (2019)). Since they are often loc ted in high-risk seismic areas, th n ed to develop num rical tools capable of describing their structural sponse und r earthquake, is essential to estimate he cost and the xtent f the safety interventio s required to improve the seismic behavior. 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy XIX ANIDIS Conference, Seismic Engineering in Italy A macro-element approach for the seismic analysis of monumental buildings Marialaura Malena a, *, Mario Lorello a , Gianmarco de Felice a a Department of Engineering, Roma Tre University,via Vito volterra 62, 00146, Rome XIX ANIDIS Conference, Seismic Engineering in Italy A macro-element approach for the seismic analysis of monumental buildings Marialaura Malena a, *, Mario Lorello a , Gianmarco de Felice a a Department of Engineering, Roma Tre University,via Vito volterra 62, 00146, Rome Abstract Abstract

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.262