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- Title
Developing a Nondestructive Method for Revealing Defective Areas in Reinforced Concrete Under Bending Conditions.
- Authors
Fursa, T. V.; Petrov, M. V.; Dann, D. D.
- Abstract
We present results of studying the spatial variation of parameters of the electrical response to a weak impact under stepwise loading of concrete beams reinforced with steel rods. It is proposed to use the following diagnostic parameters to characterize the presence of a defective area in reinforced beams: the maximum coefficient of correlation between the spectrum of electrical signal after stepwise loading and the original spectrum; the frequency shift for which the maximum correlation coefficient is observed; the coefficient of correlation between the spectrum of signal at the current loading stage and the signal spectrum at the previous stage; and the center of gravity of the spectrum. The proposed method can be used to locate the defective area in reinforced concrete under bending conditions.
- Subjects
REINFORCED concrete; CONCRETE beams; FREQUENCY spectra; STATISTICAL correlation; CENTER of mass; IMPACT (Mechanics)
- Publication
Russian Journal of Nondestructive Testing, 2019, Vol 55, Issue 4, p293
- ISSN
1061-8309
- Publication type
Article
- DOI
10.1134/S1061830919040065