Modal Analysis of Bridges for the SHM Purposes

Abstract:

The paper presents problems of modal testing of large civil engineering objects like bridges or viaducts. Authors placed here the practical information, which need to be taken into account while planning and performing this type of measurements. Descriptions of 3 modal experiments with their results are shown. All measurements and analysis were performed for the structural health monitoring and damage assessment purposes. Particularly interesting is the third case, where authors tried to assess a damage level in the road viaduct without undamaged structure model.

• Periodical: Applied Mechanics and Materials (Volume 9)
• Pages: 143-155
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.9.143
• Online since: October 2007
• Authors: Krzysztof Mendrok, Tadeusz Uhl
• Keywords: Civil Engineering, Modal Analysis, Structural Health Monitoring (SHM)

References

[1] Betti, R., Testa, R.B.: Vibration and Damage Control for Long-Span Bridges, Journal of Smart Materials and Structures, Vol. 4, p.9 l-100, (1995).

DOI: 10.1088/0964-1726/4/1a/011

[2] Kawiecki, G., Modal Damping Measurements for Damage Detection, European COST F3 Conference on System Identification and Structural Health Monitoring, Madrid, Spain, pp.651-658, (2000).

[3] Agneni A., Crema, L., and Mastroddi F., Damage Detection from Truncated Frequency Response Functions, European COST F3 Conference on System Identification and Structural Health Monitoring, Madrid, Spain, pp.137-146, (2000).

[4] Ho, Y.K., Ewins, D.J., Numerical Evaluation of the Damage Index, Structural Health Monitoring 2000, Stanford University, Palo Alto, CA, pp.995-1011, (1999).

[5] Wang, M. L., Xu, F. L., Lloyd, G. M., A Systematic Numerical Analysis of the Damage Index Method Used for Bridge Diagnostics, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, Proceedings of SPIE, Vol. 3988, Newport Beach, CA, pp.154-164, (2000).

DOI: 10.1117/12.383136

[6] Carrasco, C., Osegueda, R., Ferregut, C., Grygier, M., Localization and Quantification of Damage in a Space Truss Model Using Modal Strain Energy, Smart Systems for Bridges, Structures, and Highways, Proceedings of SPIE, Vol. 3043, pp.181-192, (1997).

DOI: 10.1117/12.274641

[7] Peeters B., Maeck J., De Roeck. G.: Dynamic monitoring of the Z24-bridge: separating temperature effects from damage, In Proceedings of the European COST F3 Conference on System Identification and Structural Health Monitoring, pp.377-386, Madrid, Spain, Lipiec (2000).

[8] Uhl T., Komputerowe wspomaganie identyfikacji modeli konstrukcji, WNT, Warszawa, (1997).

[9] Uhl T., Lisowski W., In-operation modal analysis, Wydawnictwo KRiDM AGH, Kraków, (2001).

[10] Lisowski W., Przykład algorytmu konsolidacji modelu w autonomicznej analizie modalnej, Zagadnienia analizy modalnej konstrukcji mechanicznych praca zbiorowa pod redakcją Tadeusza Uhl, Wydawnictwo KRiDM AGH, Kraków, (2003).

[11] A. Teughels, J. Maeck, G. De Roeck. Damage assessment by FE model updating using damage functions. Computers and Structures, 80(25), pp.1869-1879, October (2002).

DOI: 10.1016/s0045-7949(02)00217-1

[12] Uhl T., Lisowski W., Kurowski P.: In-Operation modal analysis and its applications, Wydawnictwo AGH , Kraków (2001).