PSI - Issue 62

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

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Procedia Structural Integrity 62 (2024) 755–762

II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) UAS-based methodology to create digital models of bridges and viaducts Antonio Di Pietro a,* , Giacomo Buffarini a , Paolo Clemente a , Benedetto Fresilli a ,Alessandro Giocoli a , Alessandro Giorgi b , Alessandro Lipari a , Ilario Morriello a , Chiara Ormando a , Salvatore Paolini a , Maurizio Pollino a , Carlo Tebano a , Tiziano Vercellino b Abstract The use of Unmanned Aerial Systems allows to exploit the aerial photogrammetry technique to obtain high-resolution orthophotos with large images, owing to latest generation payloads. This approach allows to acquire metric data of a structure through the analysis of pairs of stereometric frames. Aerial photogrammetry forms the basis for the creation of point cloud data models used to develop real-time digital replication of objects (or Digital Twins systems)to monitor, analyze and simulate their behavior in the real world, along with Finite Element models for structural analysis, material simulation and design of complex components. In addition, BIM models are developed that integrate detailed information on infrastructure geometry, materials, and performance into a single collaborative 3D model, for improved management and planning during the bridge lifespan. The results obtained by applying these techniques to an Italian bridge will be examined, providing crucial support to experts in infrastructure assessment and monitoring. © 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 II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) UAS-based methodology to create digital models of bridges and viaducts Antonio Di Pietro a,* , Giacomo Buffarini a , Paolo Clemente a , Benedetto Fresilli a ,Alessandro Giocoli a , Alessandro Giorgi b , Alessandro Lipari a , Ilario Morriello a , Chiara Ormando a , Salvatore Paolini a , Maurizio Pollino a , Carlo Tebano a , Tiziano Vercellino b a ENEA, Lungotevere Thaon di Revel, 76, 00196 Rome, Italy b Flowdron, Via Melchiorre Gioia, 66, 20125 Milan, Italy Abstract The use of Unmanned Aerial Systems allows to exploit the aerial photogrammetry technique to obtain high-resolution orthophotos with large images, owing to latest generation payloads. This approach allows to acquire metric data of a structure through the analysis of pairs of stereometric frames. Aerial photogrammetry forms the basis for the creation of point cloud data models used to develop real-time digital replication of objects (or Digital Twins systems)to monitor, analyze and simulate their behavior in the real world, along with Finite Element models for structural analysis, material simulation and design of complex components. In addition, BIM models are developed that integrate detailed information on infrastructure geometry, materials, and performance into a single collaborative 3D model, for improved management and planning during the bridge lifespan. The results obtained by applying these techniques to an Italian bridge will be examined, providing crucial support to experts in infrastructure assessment and monitoring. © 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 © 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 a ENEA, Lungotevere Thaon di Revel, 76, 00196 Rome, Italy b Flowdron, Via Melchiorre Gioia, 66, 20125 Milan, Italy

Keywords: Unmanned Aerial Systems; Digital modeling; Bridge inspections Keywords: Unmanned Aerial Systems; Digital modeling; Bridge inspections

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 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.2024.09.103