PSI - Issue 84

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ScienceDirect

Procedia Structural Integrity 84 (2026) 352–359

© 2026 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 Conference Keywords: Condition Monitoring; Infrastructure Management; Dynamic Identification; Accelerometers; Damage Identification. Abstract Optimal Sensor Placement (OSP) is emerging as a key component of vibration-based Structural Health Monitoring (SHM) to support the efficient management of bridges and other critical assets. OSP seeks to minimise monitoring costs while maximising the quality of information obtained. Traditional OSP approaches resort to preliminary numerical models, whose reliability is often compromised by uncertainties in geometry, material properties and structural condition, particularly in existing structures. This study addresses these limitations by reviewing and comparing existing OSP methodologies that explicitly account for uncertainty with particular attention to methods based on the optimisation of the determinant of the Fisher Information Matrix, including extensions of the Effective Independence approach. The reviewed methods are reformulated where necessary to enable a consistent comparison using common objective functions and optimisation strategies. A case study is presented to illustrate their performance, followed by a discussion of key findings and directions for future research. III Fabre Conference: Existing Bridges, Viaducts, and Tunnels: Research, Innovation, and Applications Compare stochastic optimal sensor placement strategies for bridge monitoring Alberto Barontini a,b *, Maria Giovanna Masciotta a,b , Paulo B. Lourenço c , Giuseppe Brando a,b a Department of Engineering and Geology, “G. d’Annunzio” University of Chieti-Pescara, 65127, Pescara, Italy b UdA-TechLab, Research Center, University “G. d’Annunzio” ofChieti-Pescara, 66100, Chieti, Italy c University of Minho, ISISE, ARISE, Department of Civil Engineering, Guimarães, Portugal

* Corresponding author. Tel.: +39-085-4537261; fax: +39-085-4537255. E-mail address: alberto.barontini@unich.it

2452-3216 © 2026 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 Conference 10.1016/j.prostr.2026.06.046