PSI - Issue 44

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 44 (2023) 665–672

© 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. Abstract Seismic reliability analysis (SRA) is a powerful tool able to combine seismic hazard and structural fragility for computing the probability of failure of a specific damage state of interest. In this work, a SRA has been applied to a specific case study of an open spandrel RC arch bridge located in North-eastern Italy, adopting as suitable engineering demand parameters for both the ductile and fragile failure mechanism of the columns between the RC arches and the RC beams grillage. Collapse seismic fragilities are computed for each structural element and, finally, the bridge seismic reliability is computed in a system reliability-based format. © 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 risk map, insurance, Italy, risk mitigation, earthquake, engineering, cost-benefit analysis. 1. Introduction Nowadays, an ever-increasing attention is dedicated to a reliability assessment of structures, with specific reference to a set of performance targets. Engineers have thus to guarantee adequate safety levels for the entire service-life of the structure of interest. When dealing with seismic reliability analysis, the main contributions to consider are the likelihood of each ground shaking level at the construction site, and the most probable structural response due to a XIX ANIDIS Conference, Seismic Engineering in Italy Seismic reliability analysis of a r.c. arch bridge Mariano Angelo Zanini a, *, Klajdi Toska a , Flora Faleschini a , Lorenzo Hofer a , Gianantonio Feltrin a , Carlo Pellegrino a a Department of Civil, Environmental and Architectural Engineering, University of Padova, Padova, 35131, Italy

* Corresponding author. Tel.: +39 049 8275982 E-mail address: marianoangelo.zanini@dicea.unipd.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 © 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.2023.01.087