Dynamic monitoring of infrastructures has become increasingly important in the last decade because of their ageing and deterioration, and the need to evaluate their safety levels and rationally plan maintenance activities. The current paper presents the dynamic identification of a railway bridge with prestressed concrete box girders, based on acceleration recordings performed in operating conditions. Through the analysis of experimental data, natural frequencies, damping factors and mode shapes of the main modes were estimated. A finite element model was then defined in order to simulate the experimental data. The paper presents a comparison between the predictions of this model and experimental data and discusses their accuracy.

N. Buratti, C.B. (2022). Dynamic identification of a railway bridge with prestressed concrete box beams.

Dynamic identification of a railway bridge with prestressed concrete box beams

N. Buratti
Primo
;
M. Savoia
Ultimo
2022

Abstract

Dynamic monitoring of infrastructures has become increasingly important in the last decade because of their ageing and deterioration, and the need to evaluate their safety levels and rationally plan maintenance activities. The current paper presents the dynamic identification of a railway bridge with prestressed concrete box girders, based on acceleration recordings performed in operating conditions. Through the analysis of experimental data, natural frequencies, damping factors and mode shapes of the main modes were estimated. A finite element model was then defined in order to simulate the experimental data. The paper presents a comparison between the predictions of this model and experimental data and discusses their accuracy.
2022
Proceedings of the Italian Concrete Conference (Napoli 2022)
533
540
N. Buratti, C.B. (2022). Dynamic identification of a railway bridge with prestressed concrete box beams.
N. Buratti, C. Baldanza, M. Savoia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/904918
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