Abstract
The assessment of the structural conditions of existing structures and the evaluation of their seismic performances are usually conducted by means of numerical models. Differently than in the case of a new structure when the construction following the design phase should be done trying to reproduce, in the best way, the design assumptions, assessment analysis requires the determination of a numerical model able to accurately reproduce the actual behavior of the existing construction. This latter issue leads to an inverse problem, whose difficulty is always higher than the direct design problem. In this paper, model updating strategies based on dynamic data are applied to a class of six reinforced concrete twin arch bridges located in Provincia di Teramo, Italy, to assess their structural performance under seismic actions. The attention will be mainly focused on the Valle Castellana bridge. The case study has been selected because an apparently strange dynamic behavior emerged in a dynamic campaign carried out on 2002–2003 on this bridge. The peculiar behavior can be linked to a known phenomenon possibly affecting initially curved, symmetric structures, when the initial symmetry is lost for different possible reasons. In addition, on 2009, the Valle Castellana bridge suffered for a sudden settlement of one of the supports, and restoration works were needed to reconstruct the parts subject to failure. Based on the results of dynamic tests carried out on 2011, a calibrated finite element model was determined and used to assess the actual structural behavior of the bridge. A possible structural improvement of its seismic performance based on the validated numerical model is also discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Cerri MN, Ruta GC (2004) Detection of localized damage in plane circular arch by frequency data. J Sound Vib 270:39–59
Cerri MN, Vestroni F (2003) Identification of damage due to open cracks by change of measured frequencies. In: Proceedings of 16th conference of Italian association of theoretical and applied mechanics (AIMETA), CD ROM, Ferrara
Benedettini F, Alaggio R, Zulli D (2005) Arch bridges in Provincia di Teramo: tests, identification and numerical models. In: Proceedings of the 1st international operational modal analysis conference, Copenhagen, pp 225–236
Benedettini F, Zulli D, Alaggio R (2009) Frequency-veering and mode hybridization in arch bridges. In: Proceedings of the 27th international modal analysis conference (IMAC XXVII), Orlando
Srinil N, Rega G, Chucheepsakul S (2003) Large amplitude three-dimensional free vibrations of inclined sagged elastic cables. Nonlinear Dyn 33:129–154
Benedettini F, Rega G, Vestroni F (1981) Parametric analysis of large amplitude free vibrations of a suspended cable. Int J Solids Struct 20:95–105
Norme Tecniche per le Costruzioni, D.M. 14 gennaio 2008 e Circolare 2 febbraio 2009, n. 617, C.S.LL.PP
Clough R, Penzien J (1993) Dynamics of structures. McGraw-Hill, New York
Ewins DJ (2000) Modal testing: theory, practice and application, 2nd edn. Research Studies Press, Baldock
Brincker R, Zhang LM, Andersen P (2000) Modal identification from ambient responses using frequency domain decomposition. In: Proceedings of the 8th international modal analysis conference. San Antonio
Bendat JS, Piersol AG (1986) Random data: analysis and measurements procedures, 2nd edn. Wiley, New York
Dilena M, Morassi A (2010) Dynamic testing of a damaged bridge. Mech Syst Signal Process 25(5):1485–1507
Dilena M, Morassi A, Perin M (2011) Dynamic identification of a reinforced concrete damaged bridge. Mech Syst Signal Process 25:2990–3009
Friswell MI, Mottershead JE (1995) Finite element model updating in structural dynamics. Kluwer, Dordrecht
Morassi A, Vestroni F (eds) (2008) Dynamic methods for damage detection in structures, vol 499, CISM international centre for mechanical sciences. Springer, Wien
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2012 The Society for Experimental Mechanics, Inc. 2012
About this paper
Cite this paper
Alaggio, R., Benedettini, F., Dilena, M., Morassi, A. (2012). The Valle Castellana Twin-Arch Bridge: Dynamical Tests, Identification, Seismic Performances. In: Caicedo, J., Catbas, F., Cunha, A., Racic, V., Reynolds, P., Salyards, K. (eds) Topics on the Dynamics of Civil Structures, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2413-0_13
Download citation
DOI: https://doi.org/10.1007/978-1-4614-2413-0_13
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-2412-3
Online ISBN: 978-1-4614-2413-0
eBook Packages: EngineeringEngineering (R0)