Abstract
Many researchers in the field of civil structural health monitoring have developed and tested their methods on simple to moderately complex laboratory structures such as beams, plates, frames, and trusses. Field work has also been conducted by many researchers and practitioners on more complex operating bridges. Most laboratory structures do not adequately replicate the complexity of truss bridges. This paper presents some preliminary results of experimental modal testing and analysis of the bridge model presented in the companion paper, using the peak picking method, and compares these results with those of a simple numerical model of the structure. Three dominant modes of vibration were experimentally identified under 15 Hz. The mode shapes and order of the modes matched those of the numerical model; however, the frequencies did not match.
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References
Cowled CJL, Thambiratnam DP, Chan THT, Tan ACC (2012) Structural complexity in structural health monitoring: design of laboratory model and test plan. Paper presented at the 7th world congress on engineering asset management, Daejeon, Korea, 8–10 Oct 2012
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Acknowledgments
This paper was developed within the CRC for Infrastructure and Engineering Asset Management, established and supported under the Australian Government’s Cooperative Research Centres Programme. The primary author is a postgraduate student, studying at Queensland University of Technology, Brisbane. The primary author wishes to acknowledge the Australian Research Council for providing a living allowance scholarship, and the Cooperative Research Centre for Integrated Engineering Asset Management, Queensland Department of Transport and Main Roads and Brisbane City Council for providing top-up scholarships. Taringa Steel Pty. Ltd. are also acknowledged for their high quality craftsmanship in the fabrication of the bridge model.
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Cowled, C.J.L., Thambiratnam, D.P., Chan, T.H.T., Tan, A.C.C. (2015). Structural Complexity in Structural Health Monitoring: Preliminary Experimental Modal Testing and Analysis. In: Lee, W., Choi, B., Ma, L., Mathew, J. (eds) Proceedings of the 7th World Congress on Engineering Asset Management (WCEAM 2012). Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-06966-1_18
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DOI: https://doi.org/10.1007/978-3-319-06966-1_18
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