PSI - Issue 64

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ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 64 (2024) 285–292

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Combined strain, vibration, and acoustic monitoring of the Jules Verne viaduct F.-B. Cartiaux a *, J. Semiao a , C. Rospars b , D.D. Mandal c , M. Bentahar c , J.-J. Brioist d a OSMOS Group, 49-51 Quai de Dion-Bouton 92800 Puteaux, France b Université Gustave Eiffel, Champs-sur-Marne, France c Laboratory of Acoustics at University of Le Mans, Le Mans, France d ENDSUM, Cerema, Haubourdin, France Abstract Prestressed concrete viaducts have been widely built in France and Europe in the past decades and are often strategic assets for the road networks, which deserve structural health monitoring (SHM) techniques to assess and anticipate the effects of their ageing. The Jules Verne viaduct near Amiens in France has been chosen as a case study to gather high volumes of data on its response to the live loads through a long period of time, in the frame of a common research by OSMOS Group, the Université Gustave Eiffel, the CEREMA, and Le Mans Université. The viaduct is a 943 m long bridge with 19 spans. It is made of two independent parallel decks, the first one built in 1988 and the second one in 2002, with similar geometry but significant differences in terms of prestress design. Both decks have been equipped with strain and acceleration sensors since February 2022, continuously gathering measurements at each passage of heavy vehicles on the bridge. In addition, a campaign of acoustic emission measurements was organized in July 2022. This contribution summarizes the various data analysis methods used on the large quantity of records gathered over almost two years, to obtain synthetic useful information from the combination of diverse monitoring techniques. Results and perspectives are discussed, focusing on this interesting opportunity to compare the behavior of two similar prestressed concrete structures with 14 years age difference, in field conditions and under real traffic loads. © 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 SMAR 2024 Organizers Keywords: Structural Health Monitoring; Prestressed Concrete; Acoustic Emission; Datascience SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Combined strain, vibration, and acoustic monitoring of the Jules Verne viaduct F.-B. Cartiaux a *, J. Semiao a , C. Rospars b , D.D. Mandal c , M. Bentahar c , J.-J. Brioist d a OSMOS Group, 49-51 Quai de Dion-Bouton 92800 Puteaux, France b Université Gustave Eiffel, Champs-sur-Marne, France c Laboratory of Acoustics at University of Le Mans, Le Mans, France d ENDSUM, Cerema, Haubourdin, France Abstract Prestressed concrete viaducts have been widely built in France and Europe in the past decades and are often strategic assets for the road networks, which deserve structural health monitoring (SHM) techniques to assess and anticipate the effects of their ageing. The Jules Verne viaduct near Amiens in France has been chosen as a case study to gather high volumes of data on its response to the live loads through a long period of time, in the frame of a common research by OSMOS Group, the Université Gustave Eiffel, the CEREMA, and Le Mans Université. The viaduct is a 943 m long bridge with 19 spans. It is made of two independent parallel decks, the first one built in 1988 and the second one in 2002, with similar geometry but significant differences in terms of prestress design. Both decks have been equipped with strain and acceleration sensors since February 2022, continuously gathering measurements at each passage of heavy vehicles on the bridge. In addition, a campaign of acoustic emission measurements was organized in July 2022. This contribution summarizes the various data analysis methods used on the large quantity of records gathered over almost two years, to obtain synthetic useful information from the combination of diverse monitoring techniques. Results and perspectives are discussed, focusing on this interesting opportunity to compare the behavior of two similar prestressed concrete structures with 14 years age difference, in field conditions and under real traffic loads. © 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 SMAR 2024 Organizers Keywords: Structural Health Monitoring; Prestressed Concrete; Acoustic Emission; Datascience © 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 SMAR 2024 Organizers

* Corresponding author. Tel.: +33618768246 E-mail address: cartiaux@osmos-group.com * Corresponding author. Tel.: +33618768246 E-mail address: cartiaux@osmos-group.com

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 SMAR 2024 Organizers 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 SMAR 2024 Organizers

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