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Journal of Nondestructive Evaluation

, Volume 29, Issue 1, pp 14–24 | Cite as

Ambient Vibration Tests of a Steel Footbridge

  • Alemdar Bayraktar
  • Ahmet Can Altunişik
  • Barış Sevim
  • Temel Türker
Article

Abstract

The paper presents analytical and experimental modal analysis of a steel footbridge for modal parameter identification. 3D finite element model is established for the steel footbridge based on the design drawing and modal parameters are obtained from deformed configurations. The field test is carried out by ambient vibration test under human walking excitation. Both Peak Picking method in the frequency domain and the Stochastic Subspace Identification method in the time domain are used for the output-only modal identification. From the study, good agreement is found between mode shapes, but some differences in the natural frequencies and analytical frequencies are bigger.

Ambient vibration test Footbridge Modal parameter Peak picking Stochastic subspace identification 

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References

  1. 1.
    Leonard, D.R., Eyre, R.: Damping and frequency measurements on eight box girder bridges. Report No. LR682, Crowthorne: Transport and Road Research Laboratory, Department of the Environment (1975) Google Scholar
  2. 2.
    Eyre, R., Tilly, G.P.: Damping measurements on steel and composite bridges. In: Proceedings of the DOE and DOT TRRL Symposium on Dynamic Behaviour of Bridge, pp. 22–39 (1977) Google Scholar
  3. 3.
    Zivanovic, S., Pavic, A., Reynolds, P.: Modal testing and FE model tuning of a lively footbridge structure. Eng. Struct. 28, 857–868 (2006) CrossRefGoogle Scholar
  4. 4.
    Zivanovic, S., Pavic, A., Reynolds, P.: Finite element modelling and updating of a lively footbridge: the complete process. J. Sound Vib. 301, 126–145 (2007) CrossRefGoogle Scholar
  5. 5.
    Bayraktar, A., Altunışık, A.C., Sevim, B., Türker, T.: Modal testing and finite element model updating of an arch type steel footbridge. Steel Compos. Struct. 7(6), 487–502 (2007) Google Scholar
  6. 6.
    Gentile, C., Gallino, N.: Ambient vibration testing and structural evaluation of an historic suspension footbridge. Adv. Eng. Softw. 39, 356–366 (2008) CrossRefGoogle Scholar
  7. 7.
    Silva, J.G.S., Vellasco, P.C.G., Andrade, S.A.L., Lima, L.R.O., Figueredo, F.P.: Vibration analysis of footbridges due to vertical human loads. Comput. Struct. 85(21–22), 1693–1703 (2007) Google Scholar
  8. 8.
    Peterson, S.T., McLean, D.I., Pollock, D.G.: Application of dynamic system identification to timber brides. J. Struct. Eng. ASCE 129(1), 116–124 (2003) CrossRefGoogle Scholar
  9. 9.
    Nakamura, S., Kawasaki, T., Katsuura, H., Yokoyama, K.: Experimental studies on lateral forces induced by pedestrians. J. Constr. Steel Res. 64(2), 247–252 (2008) CrossRefGoogle Scholar
  10. 10.
    Modak, S.V., Kundra, T.K., Nakra, B.C.: Comparative study of model updating methods using experimental data. Comput. Struct. 80(5–6), 437–447 (2002) CrossRefGoogle Scholar
  11. 11.
    OMA: Operational Modal Analysis, Release 4.0. Structural Vibration Solution A/S, Denmark (2006) Google Scholar
  12. 12.
    Felber, A.J.: Development of hybrid bridge evaluation system. Ph.D. thesis, University of British Columbia, Vancouver, Canada (1993) Google Scholar
  13. 13.
    Brincker, R., Zhang, L., Andersen, P.: Modal identification from ambient responses using frequency domain decomposition. 18th Int. Modal Anal. Conf. 4062(2), 625–630 (2000). San Antonio, USA Google Scholar
  14. 14.
    Bendat, J.S., Piersol, A.G.: Random Data: Analysis and Measurement Procedures. Wiley, New York (1986) MATHGoogle Scholar
  15. 15.
    Overschee, V.P., De Moor, B.: Subspace Identification for Linear Systems: Theory, Implementation and Applications. Kluwer Academic, Dordrecht (1996) MATHGoogle Scholar
  16. 16.
    Peeters, B.: System identification and damage detection in civil engineering. Ph.D. thesis, K.U., Leuven, Belgium (2000) Google Scholar
  17. 17.
    Ewins, D.J.: Modal Testing: Theory and Practice. Research Studies Press Ltd, Taunton (1984) Google Scholar
  18. 18.
    SAP2000: Integrated finite element analysis and design of structures. Computers and Structures Inc, Berkeley, California, USA (1998) Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Alemdar Bayraktar
    • 1
  • Ahmet Can Altunişik
    • 1
  • Barış Sevim
    • 1
  • Temel Türker
    • 1
  1. 1.Department of Civil EngineeringKaradeniz Technical UniversityTrabzonTurkey

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