Experimental validation of the use of energy transfer ratio (ETR) for damage diagnosis of steel-concrete composite beams
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West Pomeranian University of Technology, Department of Theory of Structure, Szczecin
West Pomeranian University of Technology, Institute of Manufacturing Engineering, Szczecin
Submission date: 2015-05-21
Acceptance date: 2016-07-17
Online publication date: 2017-01-15
Publication date: 2017-01-15
Journal of Theoretical and Applied Mechanics 2017;55(1):241-252
The paper presents changes of modal parameters such as natural frequencies, damping ratios and energy transfer ratios (ETR) following damage of the connection of a steel-concrete composite beam. Sensitivity analysis of the parameters is conducted both for numerical simulation and experimental results. The energy transfer ratio ETR is determined: i) for the whole beam – as a global parameter which can be used for damage detection, ii) for segments of the beam – as a local parameter which can be used for damage localisation.
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