PSI - Issue 44

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Procedia Structural Integrity 44 (2023) 1848–1855

XIX ANIDIS Conference, Seismic Engineering in Italy Operational critical issues filling in the Italian form for the post-earthquake damage assessment of churches (A-DC 2006) Romina Sisti a *, Elvis Cescatti b , Veronica Follador b , Francesca Da Porto b , Chiara Calderini c , Sergio I I I f r , i i i ri i It l i i ti a , l i sc tti b , r i ll r b , r rt b , i r l ri i c , r i

Lagomarsino c , Michele Morici d , Andrea Prota a a University of Naples Federico II, DIST, via Claudio, 21 80125 Naples, Italy b University of Padua, via Giovanni Gradenigo, 6, 35131, Padua, Italy c University of Genoa, DICCA, via Montallegro 1, 16145 Genoa, Italy d University of Camerino, SAAD, Viale della Rimembranza 3, 63100 Ascoli Piceno, Italy, r i o c , i l ri i d , r r t a a niversity of aples ederico II, IST, via laudio, 21 80125 aples, Italy b niversity of adua, via iovanni Gradenigo, 6, 35131, adua, Italy c niversity of enoa, I , via ontallegro 1, 16145 enoa, Italy d niversity of a erino, S , iale della i e branza 3, 63100 scoli iceno, Italy,

© 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 analyses presented here concern the data of 225 churches inspected during the 2016-2017 Central Italy seismic sequence. All the churches were investigated twice by different technicians due to the occurrence of a second seismic event that required a further inspection. This chance has allowed to compare the data of two inspections relating to the same church and it highlighted the presence of frequent interpretative differences: often the collapse mechanisms identified by one technician did not coincide with those identified by the other technician. Each of the 225 churches was therefore carefully analyzed to identify the recurring situations that caused these critical issues. © 2022 The Authors. Published by ELSEVIER B.V. This is an ope access article under t e CC BY-NC-ND license ( https://creativec mmons.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: masonry churches; post-earthquake damage assessment; emergency management tool 1. Introduction The management of an emergency phase by the Department of Civil Protection after the occurrence of severe seismic events requires a prompt evaluation of losses and damages in order to define safety countermeasures and the structures' usability. Regarding cultural heritage, a coordinated group made of Fire brigades, Universities, and Ministry of Cultures technicians, executes stract In the e ergency phase follo ing a severe seis ic event, it is essential to quickly proceed ith the assess ent of the da age suffered by buildings, both to assess hich structures are still usable and to pro ptly intervene on da aged structures in order to prevent the fro further da age. a age data is also very i portant for the scientific co unity as it allo s the creation of fragility curves for groups of buildings ith ho ogeneous vulnerability and to carry out risk itigation strategies. he epart ent of Italian ivil rotection has developed, for each type of building (residential buildings, long-span buildings, churches, historic buildings), survey for s to collect the da age reported by the structures in a standardized ay. his paper is focused on the for used for churches ( - 2006 for ), that analyzed the seis ic behavior of a church by considering each acro ele ent that co poses it independently (i.e., façade, nave, apse, transept ...). he for proposes for each acro-ele ent a variable nu ber of collapse echanis s, for a total of 28. he analyses presented here concern the data of 225 churches inspected during the 2016-2017 entral Italy seis ic sequence. ll the churches ere investigated t ice by different technicians due to the occurrence of a second seis ic event that required a further inspection. his chance has allo ed to co pare the data of t o inspections relating to the sa e church and it highlighted the presence of frequent interpretative differences: often the collapse echanis s identified by one technician did not coincide ith those identified by the other technician. ach of the 225 churches as therefore carefully analyzed to identify the recurring situations that caused these critical issues. 2022 he uthors. ublished by I . . his is an ope access article under t e - - license ( tt s://creati ec s. r /lice ses/ - c- / . ) eer-revie under responsibility of the scientific co ittee of the I I I onference, eis ic ngineering in Italy ey ords: asonry churches; post-earthquake da age assess ent; e ergency anage ent tool . I tr cti e a a e e t f a e er e c ase t e e art e t f i il r tecti after t e cc rre ce f se ere seis ic e e ts re ires a r t e al ati f l sses a a a es i r er t efi e safet c ter eas res a t e str ct res' sa ilit . e ar i c lt ral erita e, a c r i ate r a e f ire ri a es, i ersities, a i istr f lt res tec icia s, e ec tes Abstract In the emergency phase following a severe seismic event, it is essential to quickly proceed with the assessment of the damage suffered by buildings, both to assess which structures are still usable and to promptly intervene on damaged structures in order to prevent them from further damage. Damage data is also very important for the scientific community as it allows the creation of fragility curves for groups of buildings with homogeneous vulnerability and to carry out risk mitigation strategies. The Department of Italian Civil Protection has developed, for each type of building (residential buildings, long-span buildings, churches, historic buildings), survey forms to collect the damage reported by the structures in a standardized way. This paper is focused on the form used for churches (A-DC2006 form), that analyzed the seismic behavior of a church by considering each macro element that composes it independently (i.e., façade, nave, apse, transept ...). The form proposes for each macro-element a variable number of collapse mechanisms, for a total of 28.

* Corresponding author. E-mail address: romina.sisti@unina.it * orresponding author. - ail address: ro ina.sisti unina.it

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.2023.01.236 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 2452-3216 2022 The uthors. Published by ELSE IE . . This is an open access article under the Y- - license (https://creativeco ons.org/licenses/by-nc-nd/4.0) Peer-revie under responsibility of the scientific co ittee of the I I IS onference, Seis ic ngineering in Italy