Abstract
This paper concerns damage identification of a bridge located in Luxembourg. Vibration responses were captured from measurable and adjustable harmonic swept sine excitation and hammer impact. Different analysis methods were applied to the data measured from the structure showing interesting results. However, some difficulties arise, especially due to environmental influences (temperature and soil-behaviour variations) which overlay the structural changes caused by damage. These environmental effects are investigated in detail in this work. First, the modal parameters are identified from the response data. In the next step, they are statistically collected and processed through Principal Component Analysis (PCA) and Kernel PCA. Damage indexes are based on outlier analysis.
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Acknowledgment
The author Nguyen V.H. is supported by the National Research Fund, Luxembourg.
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© 2014 The Society for Experimental Mechanics, Inc.
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Nguyen, V.H., Mahowald, J., Golinval, JC., Maas, S. (2014). Damage Detection in Civil Engineering Structure Considering Temperature Effect. In: Catbas, F. (eds) Dynamics of Civil Structures, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-04546-7_22
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DOI: https://doi.org/10.1007/978-3-319-04546-7_22
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