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Identification of the Elastic Modulus of Simply-Supported Girders from Dynamic Tests: Method and in Situ Validation

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European Workshop on Structural Health Monitoring (EWSHM 2020)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 127))

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Abstract

Dynamic measurements under known moving loads yield a novel procedure for the elastic modulus assessment of existing concrete bridges. The bridge deck is modelled as a single-span, simply supported Euler–Bernoulli beam excited by a travelling force. The elastic modulus assessment derives from an Ordinary Least Square procedure with a Bayesian uncertainty estimation, obtained by approximating the known term of the governing equations due to the travelling force with a square wave signal. The authors validated the procedure on six full-scale concrete girders of the A24 motorway in Italy and compared the results to the values obtained via in situ static load tests and further tests on concrete specimens. The procedure represents a straightforward test devised for supporting the drafting of quality control plans and the prioritization of the interventions.

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Authors and Affiliations

  1. Dipartimento di Ingegneria Civile Edile-Architettura ed Ambientale, Università degli Studi dell’Aquila, Piazzale Pontieri, Monteluco di Roio, 67100, L’Aquila, AQ, Italy

    Angelo Aloisio, Elena Antonacci, Riccardo Cirella, Dante Galeota, Rocco Alaggio & Massimo Fragiacomo

Authors
  1. Angelo Aloisio
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  2. Elena Antonacci
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  3. Riccardo Cirella
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  4. Dante Galeota
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  5. Rocco Alaggio
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  6. Massimo Fragiacomo
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Corresponding author

Correspondence to Angelo Aloisio .

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Editors and Affiliations

  1. Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA

    Piervincenzo Rizzo

  2. Department of Engineering, Università degli Studi di Palermo, Palermo, Italy

    Alberto Milazzo

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Aloisio, A., Antonacci, E., Cirella, R., Galeota, D., Alaggio, R., Fragiacomo, M. (2021). Identification of the Elastic Modulus of Simply-Supported Girders from Dynamic Tests: Method and in Situ Validation. In: Rizzo, P., Milazzo, A. (eds) European Workshop on Structural Health Monitoring. EWSHM 2020. Lecture Notes in Civil Engineering, vol 127. Springer, Cham. https://doi.org/10.1007/978-3-030-64594-6_64

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  • DOI: https://doi.org/10.1007/978-3-030-64594-6_64

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-64593-9

  • Online ISBN: 978-3-030-64594-6

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