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

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 44 (2023) 155–162

© 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. In the disciplines dealing with the preservation of the built heritage, the assessment of the seismic vulnerability plays a decisive role. A high number of numerical models have been developed to simulate the behaviour of different building typologies subjected to seismic action, but requiring a in-depth knowledge of the object of study they are not suitable for urban scale analysis. The widespread historical built heritage in Italy, as in many other countries, requires the definition of rapid and reliable assessment procedures that allows a large-scale evaluation of the vulnerability of historical buildings before a seismic event. This analysis should be based on existing databases, such as the Reluis-Cartis database, without necessarily proceeding at this stage with detailed investigations of each individual building. Based on state-of-the-art procedures, a methodology is proposed for the fast construction of the fragility curves starting from information available on the Reluis-Cartis database. The curves define the relationship between the probability of reaching a safety factor or a vulnerability index in function of the seismic acceleration PGA. The methodology allows to understand the probability of loss of the structural safety in function of a given PGA. The developed methodology is applied here in two cases: (a) a small historic building hit by several earthquakes in order to calibrate the methodology and (b) to a set of historic building of the same typology in a historic center never hit by earthquakes in order to assess the level of the probability of loss of the structural safety given the code defined PGA, as well as to draw conclusions on prioritizing intervention strategies at the urban scale. © 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: Seismic Vulnerability; Fragility Curves; Built Heritage, Masonry. In the disciplines dealing with the preservation of the built heritage, the assessment of the seismic vulnerability plays a decisive role. A high number of umerical models h ve been d veloped to simulate th behavi ur of different b ilding typologies subjected t seism c action, but requiring a in- pt knowledg of th object of study they are n t suitable for urban sca e analysis. The wid spread historical built herit ge in Italy, as in many o r coun ries, requires the definition of rapid and reliable sses ment procedures t a allows a arge-scale evaluation of the vulnerability of historical buildings before a se smic event. Thi analysis sh ul b based on exi ting datab s s, such as the Reluis-Cartis da abase, without necessarily pr c eding at this stage with detailed investigation of each indivi u l building. B ed on state of-the-ar proc dures, a m thodology is proposed for the fast construction of the fr gility curves starting from nformation availabl n Reluis-Cartis d tabase. The curves defin the relationship betwee the prob bilit of r aching a safety factor or a vulnerability index in function of the seismi acc lerat on PGA. The methodology allows to understand t e prob bility of loss of the structural safety in function of a g ven PGA. The developed method l gy is pplied here in two cases: (a) small hist ric building hit by ev ral earthquakes in order to calibrat th metho ology and (b) to set of istoric building of the same typology n a historic center never hit by earthquakes in order to assess the level of the probability f loss of the structural safe given the code defined PGA, as well as to draw conclusi ns on prioritizing intervention strategies at the urban scale. © 2022 The Authors. Pub ished 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 re ponsibility of scientific committe of the XIX ANIDIS C nfere ce, Seismic Engineering in Italy K ywords: Seismic Vulnerability; Fragility Curves; Built Heritage, Masonry. XIX ANIDIS Conference, Seismic Engineering in Italy Simplified seismic vulnerability analysis of historic residential buildings with fragility curves Elsa Garavaglia a , Grigor Angjeliu a , Giuliana Cardani a * XIX ANIDIS Conference, Seismic Engineering in Italy Simplified seismic vulnerability analysis of historic residential buildings with fragility curves Elsa Garavaglia a , Grigor Angjeliu a , Giuliana Cardani a * a Dept. of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133,, Italy a Dept. of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133,, Italy Abstract Abstract

* Corresponding author. Tel.: +39-02-2399-4204; fax: +39-02-2399-4220. E-mail address: giuliana.cardani@polimi.it * Corresponding author. Tel.: +39-02-2399-4204; fax: +39-02-2399-4220. E-mail address: giuliana.cardani@polimi.it

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 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 © 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.2023.01.021