Abstract
The paper tackles the dynamic identification and the damage detection carried out by a spectral-based method on the well-known Z24 bridge, a three-span pre-stressed concrete bridge located in Switzerland. Before being destroyed, the bridge was progressively damaged and tested in the framework of the Brite Euram project SIMCES. Starting from this benchmark, the presented spectral-based identification technique is validated and the usefulness of this method as a non-destructive tool able to catch the dynamic behavior of a structure and locate the damage is widely discussed. Firstly, a FE model of the bridge was built and calibrated in order to analyze its response to different excitation types (ramp force, triangular pulse, shaker and random vibrations) and several damage scenarios. Secondly, aiming at identifying both the modal parameters and the damage of the bridge, the spectral-based method is applied making use of the power spectral matrix decomposition. Finally, a proper index is defined and applied to this case-study in order to locate the damage.
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Ramos L (2007) Damage identification on masonry structures based on vibration signatures. PhD thesis, University of Minho, Minho
Krämer C, de Smet CAM, De Roeck G (1999) Z24 bridge damage detection tests. In: Proceedings of the IMAC XVII conference, Kissimmee, pp 1023–1029
Reynders E, De Roeck G (2009) Continuous vibration monitoring and progressive damage testing on the Z24 bridge. In: Boller C, Chang FK, Fujino Y (eds) Encyclopedia of structural health monitoring. Wiley, New York, pp 2149–2158
Teughels A, De Roeck G (2004) Structural damage identification of the highway bridge Z24 by FE model updating. J Sound Vib 278:589–610
Cawley P, Adams RD (1979) The location of defects in structures from measurements of natural frequencies. J Strain Anal 14(2):49–57
Kim JT, Ryu YS, Cho HM, Stubbs N (2003) Damage identification in beam-type structures: frequency-based method vs mode-shape-based method. Eng Struct 25:57–67
DIANA (2013) DIANA-9.4.4 finite element analysis, User’s manual, Release 9.4.4. TNO, Netherlands
Chopra AK (2001) Dynamics of structures: theory and application to earthquake engineering. Prentice-Hall, Upper Saddle River
MATLAB (R2010a) (2010) MATLAB user manual, Release 7.10.0. The Math Works, USA
Peeters B, De Roeck G (1999) Reference-based stochastic subspace identification for output-only modal analysis. Mech Syst Signal Process 13(6):855–878
ARTeMIS Extractor Pro 2011 (2011) Release 5.4. Structural Vibration Solutions, Denmark
Allemang RJ (2002) The model assurance criterion (MAC): twenty years of use and abuse. In: Proceedings of the international modal analysis conference (IMAC 20), Los Angeles, pp 397–405
Acknowledgments
The authors would like to express their gratitude to Prof. Dr. Guido De Roeck for sharing the information about the geometry of the Z24 Bridge. Without this information the present work would never be possible.
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© 2014 The Society for Experimental Mechanics, Inc.
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Masciotta, M.G., Ramos, L.F., Lourenço, P.B., Vasta, M. (2014). Damage Detection on the Z24 Bridge by a Spectral-Based Dynamic Identification Technique. In: Catbas, F. (eds) Dynamics of Civil Structures, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-04546-7_23
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DOI: https://doi.org/10.1007/978-3-319-04546-7_23
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