Abstract
This study has been motivated to evaluate the practicality of numerical simulation of impedance monitoring for bolt-loosening detection in steel column connection. In order to achieve the objective, the following approaches are implemented. Firstly, the theory of electro-mechanical (E/M) impedance responses and impedance-based damage monitoring method are outlined. Secondly, the feasibility of numerical simulation of impedance monitoring is verified for several pre-published experimental examples on steel beams, cracked aluminum beams, and aluminum round plates. Undamaged and damaged steel and aluminum beams are simulated to compare to experimental impedance responses. An aluminum round plate with PZT patch in center is simulated to investigate sensitive range of impedance responses. Finally, numerical simulation of the impedance-based damage monitoring is performed for a steel column connection in which connection bolts are damaged. From the numerical simulation test, the applicability of the impedance-based monitoring to the target steel column connection can be evaluated.
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This research is funded by Bach Khoa University - VNU-HCM, under grant number T-KTXD-2016-92.
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Ho, DD., Nguyen, TH., Le, QH. (2018). Bolt-Loosening Detection in Steel Column Connections Using Impedance Responses. In: Tran-Nguyen, HH., Wong, H., Ragueneau, F., Ha-Minh, C. (eds) Proceedings of the 4th Congrès International de Géotechnique - Ouvrages -Structures. CIGOS 2017. Lecture Notes in Civil Engineering , vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-10-6713-6_9
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DOI: https://doi.org/10.1007/978-981-10-6713-6_9
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