2011•Journal of Guangxi UniversityRequires access

Experimental research on acoustic emission characteristics of reinforced concrete beams during failure process

Haibo Lü

Abstract

AE tests on the reinforced concrete beams under cross-loading were carried out.After studying the characteristics of AE signal and AE energy-frequency curve,the scope of the AE frequency were analyzed and statistical analysis methods of AE parameters and the filtering range were identified.Based on the pull-out test of reinforcing bar,the transition point of the AE signal was interpreted and the variation of the acoustic emission parameters in the reinforced concrete beams was obtained.Finally,the application of AE on both the monitoring of the destruction of reinforced concrete beams and the prediction of the ultimate bearing capacity of reinforced concrete beams were discussed.

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Key concepts: Acoustic emission, Reinforced concrete, Structural engineering, Materials science, Bearing capacity, SIGNAL (programming language), Range (aeronautics), Bar (unit)