Abstract
A multi-channel continuous dynamic monitoring system has been installed in a centenary iron arch bridge on late November 2011. The historic infrastructure, completed in 1889 and crossing the Adda river about 50 km far from Milan, is the most important monument of XIX century iron architecture in Italy and is still used as roadway and railway bridge. The monitoring project follows a series of preliminary ambient vibration tests carried out on the bridge since June 2009.
The paper describes the bridge structure and its dynamic characteristics identified from the experimental studies developed since 2009, the installed monitoring system and the software developed in LabVIEW for automatically processing the collected data. Subsequently, the tracking of automatically identified natural frequencies over a period of about 18 months is presented and discussed, highlighting the effects of environmental and operational conditions on the bridge dynamic characteristics as well as the detection of structural changes, mainly based on natural frequencies shifts.
Similar content being viewed by others
References
Federal Highway Administration. Status of the Nation’s highways, bridges and transit: conditions and performance-Report to Congress. Technical Report, U S Department of Transportation, 2008
Wenzel H. Health Monitoring of Bridges. John Wiley & Sons, 2009
Abe M, Fujino Y. Bridge monitoring in Japan. In: Encyclopedia of Structural Health Monitoring, John Wiley & Sons, 2009
Pines D, Aktan A E. Status of structural health monitoring of long-span bridges in the United States. Progress in Structural Engineering and Materials, 2002, 4(4): 372–380
Magalhães F, Cunha Á, Caetano E. Dynamic monitoring of a long span arch bridge. Engineering Structures, 2008, 30(11): 3034–3044
Magalhães F, Cunha Á, Caetano E. Vibration based structural health monitoring of an arch bridge: from automated OMA to damage detection. Mechanical Systems and Signal Processing, 2012, 28: 212–228
Peeters B, Couvreur G, Razinkov O, Kündig C, Van der Auweraer H, De Roeck G. Continuous monitoring of the Øresund Bridge: system and data analysis. Structure and Infrastructure Engineering, 2009, 5(5): 395–405
Cross E J, Koo K Y, Brownjohn J M W, Worden K. Long-term monitoring and data analysis of the Tamar Bridge. Mechanical Systems and Signal Processing, 2013, 35(1–2): 16–34
Wong K Y. Design of a structural health monitoring system for long-span bridges. Structure and Infrastructure Engineering, 2007, 3(2): 169–185
Società Nazionale delle Officine di Savigliano. Il viadotto di Paderno sull’Adda (ferrovia Ponte S. Pietro-Seregno), Camilla e Bertolero, 1889
Ascè V, Zorgno A M, Bertolini C, Carbone V I, Pistone G, Roccati R.Il ponte di Paderno: storia e struttura. Conservazione dell’architettura in ferro. Restauro, 1984, 13: 73–74
Gentile C, Saisi A. Ambient vibration testing and condition assessment of the Paderno iron arch bridge (1889). Construction & Building Materials, 2011, 25(9): 3709–3720
Gentile C, Saisi A. Structural Health Monitoring of a centenary iron arch bridge: 1. Ambient vibration tests and condition assessment. In: Proceedings of the 4th International Conference on Experimental Vibration Analysis for Civil Engineering Structures (EVACES’11). Varenna, 2011, 121–130
Busatta F, Gentile C. Structural Health Monitoring of a centenary iron arch bridge: 2. Long-term dynamic monitoring and preliminary tests. In: Proceedings of the 4th International Conference on Experimental Vibration Analysis for Civil Engineering Structures (EVACES’11). Varenna, 2011, 861–868
Gentile C, Saisi A. Operational modal testing of historic structures at different levels of excitation. Construction & Building Materials, 2013, 48: 1273–1285
Busatta F, Gentile C, Saisi A. Structural health monitoring of a centenary iron arch bridge. In: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering (IALCCE 2012). Vienna, 2012, 136–143
Busatta F. Dynamic monitoring and automated modal identification of large structures: Methodological aspects and application to a historic iron bridge. PhD Thesis, Politecnico di Milano, 2012
Calçada R, Cunha A, Delgado R. Dynamic analysis of metallic arch railway bridge. Journal of Bridge Engineering, 2002, 7(4): 214–222
Brincker R, Zhang L, Andersen P. Modal identification of outputonly systems using frequency domain decomposition. Smart Materials and Structures, 2001, 10(3): 441–445
SVS 2010. ARTeMIS Extractor 2010 release 5.0. (http://www.svibs.com)
Bendat J S, Piersol A G. Engineering Applications of Correlation and Spectral Analysis. Wiley Interscience, 1993
Welch P D. The use of Fast Fourier Transform for the estimation of Power Spectra: a method based on time averaging over short modified periodograms. IEEE Transactions on Audio and Electroacoustics, 1967, 15(2): 70–73
Cabboi A, Gentile C, Saisi A. Vibration-based SHM of a centenary bridge: a comparative study between two different automated OMA techniques. In: Proceedings of the 9th International Conference on Structural Dynamics (Eurodyn 2014). Porto, 2014, 1461–1468
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gentile, C., Saisi, A. Continuous dynamic monitoring of a centenary iron bridge for structural modification assessment. Front. Struct. Civ. Eng. 9, 26–41 (2015). https://doi.org/10.1007/s11709-014-0284-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11709-014-0284-4