Abstract
The dynamic characteristics of two representative R/C bridges on Egnatia Odos motorway in Greece are estimated based on low amplitude ambient and earthquake-induced vibrations. The present work outlines the instrumentation details, algorithms for computing modal characteristics (modal frequencies, damping ratios and modeshapes), modal-based finite element model (FEM) updating methods for estimating structural parameters, and numerical results for the modal and structural dynamic characteristics of the two bridges based on ambient and earthquake induced vibrations. Transverse, bending and longitudinal modes are reliably identified and stiffness-related properties of the piers, deck and elastomeric bearings of the FEMs of the two bridges are estimated. Results provide qualitative and quantitative information on the dynamic behavior of the bridge systems and their components under low-amplitude vibrations. Modeling assumptions are discussed based on the differences in the characteristics identified from ambient and earthquake vibration measurements. The sources of the differences observed between the identified modal and structural characteristics of the bridges and those predicted by FEMs used for design are investigated and properly justified.
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Basseville M, Benveniste A, Goursat M, Hermans L, Mevel L, Van der Auweraer H, (2001) Output-only subspace-based structural identication: from theory to industrial testing practice. ASME J Dyn Syst Meas Contr 123(4): 668–676 doi:10.1115/1.1410919
Beck JL (1978) Determining models of structures from earthquake records, Report No. EERL 78-01. Earthquake Engineering Research Laboratory, California Institute of Technology, Pasadena, CA
Beck JL, Jennings PC (1980) Structural identification using linear models and earthquake records. Earthquake Eng Struct Dynam 8: 145–160 doi:10.1002/eqe.4290080205
Beck JL, May BS, Polidori DC (1994) Determination of modal parameters from ambient vibration data for structural health monitoring. Proceedings of the 1st world conference on structural control. Los Angeles, USA, pp 1395–1402
Beyer HG (2001) The theory of evolution strategies. Springer-Verlag, Berlin
Bohle K, Fritzen CP (2003) Results obtained by minimizing natural frequencies and MAC-value errors of a plate model. Mech Syst Signal Process 17: 55–64 doi:10.1006/mssp.2002.1539
Brincker R, Zhang L, Andersen P (2001) Modal identification of output-only systems using frequency domain decomposition. Smart Mater Struct 10: 441–445 doi:10.1088/0964-1726/10/3/303
Christodoulou K, Papadimitriou C (2007) Structural identification based on optimally weighted modal residuals. Mech Syst Signal Process 21: 4–23 doi:10.1016/j.ymssp.2006.05.011
Chaudhary MTA, Abe M, Fujino Y (2000) System identification of two base-isolated buildings using seismic records. J Struct Eng 126(10): 1187–1195 doi:10.1061/(ASCE)0733-9445
Chaudhary MTA, Abe M, Fujino Y (2002) Role of structural details in altering the expected seismic response of base-isolated bridges. Mech Syst Signal Process 16(2–3): 413–428 doi:10.1006/mssp.2002.1480
COMSOL AB (2005) COMSOL multiphysics user’s guide. http://www.comsol.com/
Gauberghe B (2004) Applied frequency-domain system identification in the field of experimental and operational modal analysis. PhD Thesis, Vrije Universiteit Brussel, Belgium
Guillaume P, Hermans L, Van der Auweraer H (1999) Maximum likelihood identification of modal parameters from operational data. Proceedings of the international modal analysis conference—IMAC 2, pp 1887–1893
Katafygiotis LS, Yuen K-V (2001) Bayesian spectral density approach for modal updating using ambient data. Earthquake Eng Struct Dynam 30(8): 1103–1123 doi:10.1002/eqe.53
Lam HF, Katafygiotis LS, Mickleborough NC (2004) Application of a statistical model updating approach on phase I of the IASC-ASCE structural health monitoring benchmark study. J Eng Mech 130(1): 34–48 doi:10.1061/(ASCE)0733-9399
McVerry GH (1980) Structural identification in the frequency domain from earthquake records. Earthquake Eng Struct Dynam 8: 161–180 doi:10.1002/eqe.4290080206
Mottershead JE, Friswell MI (1993) Model updating in structural dynamics: a survey. J Sound Vibrat 167: 347–375 doi:10.1006/jsvi.1993.1340
Papageorgiou AS, Lin BC (1989) Influence of lateral-load-resisting system on the earthquake response of structures—a system identification study. Earthquake Eng Struct Dynam 18: 799–814 doi:10.1002/eqe.4290180605
Peeters B, De Roeck G (1999) Reference-based stochastic subspace identification for output-only modal analysis. Mech Syst Signal Process 13(6): 855–878 doi:10.1006/mssp.1999.1249
Peeters B, De Roeck G (2001) Stochastic system identification for operational modal analysis: a review. J Dyn Syst Meas Control 123(4): 659–667 doi:10.1115/1.1410370
Peeters B, Vander Auweraer H (2005) Recent developments in operational modal analysis. In: Soize C, Schueller GI(eds) EURODYN 2005. Millpress, Rotterdam, pp 149–154
Safak E (1995) Detection and identification of soil-structure interaction in buildings from vibration recordings. J Struct Eng 121(5): 899–906 doi:10.1061/(ASCE)0733-9445
Stewart JP, Conte JP, Aiken ID (1999) Observed behavior of seismically isolated buildings. J Struct Eng 125: 955–964 doi:10.1061/(ASCE)0733-9445
Teughels A, De Roeck G, Suykens JAK (2003) Global optimization by coupled local minimizers and its application to FE model updating. Comput Struc 81(24–25): 2337–2351 doi:10.1016/S0045-7949(03)00313-4
Verboven P (2002) Frequency domain system identification for modal analysis. PhD Thesis, Vrije Universiteit Brussel, Belgium
Werner SD, Beck JL, Levine MB (1987) Seismic response evaluations of Meloland road overpass using 1979 Imperial Valley earthquake records. Earthquake Eng Struct Dynam 15: 249–274 doi:10.1002/eqe.4290150207
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Ntotsios, E., Karakostas, C., Lekidis, V. et al. Structural identification of Egnatia Odos bridges based on ambient and earthquake induced vibrations. Bull Earthquake Eng 7, 485–501 (2009). https://doi.org/10.1007/s10518-008-9074-5
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DOI: https://doi.org/10.1007/s10518-008-9074-5