PSI - Issue 62

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 62 (2024) 177–184

II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) On site investigations and laboratory testing on full scale elements for the characterization of an existing RC bridge Gianluca Bottin a *, Luca Pozza b , Diego Talledo a , Luisa Berto a , Nicola Buratti b , Marco Savoia b , Anna Saetta a a Department DCP, University IUAV of Venezia, Dorsoduro 2206 - Venezia, 30123, Italy b Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Viale Risorgimento 2 - Bologna, 40136, Italy Abstract The assessment of the mechanical characteristics and of the degradation level of existing bridges is a topic of great relevance today. In this regard, the methodology proposed by the Italian “ Guidelines for risk classification, safety assessment and structural health monitoring of existing bridges ” represents a fundamental support in the whole evaluation process. In this paper, the first phases of an experimental and numerical research on an existing RC bridge which was scheduled for demolition are presented. This opportunity allows to carry out both on-site tests and, subsequently, laboratory tests on full-scale elements extracted from the bridge, which can be supported by Finite Element (FE) analyses of different levels of detail. In particular, in this paper a first numerical analyses have been carried out by assuming the mean values of all the material parameters in order to obtain the necessary information for the design of the experimental setup. Moreover a Montecarlo analysis has been also carried out to assess the influence of the statistic variability of material parameters on the structural response. © 2024 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 Scientific Board Members Keywords: laboratory and on site testing; full scale tests; existing RC bridge; degradation © 2024 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 Scientific Board Members

* Corresponding author. Tel.: 0039 0412571311. E-mail address: gbottin@iuav.it

2452-3216 © 2024 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 Scientific Board Member s

2452-3216 © 2024 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 Scientific Board Members 10.1016/j.prostr.2024.09.031