Damage Detection of Reinforced Concrete Beams by Wavelet Analysis

Gang Xue

doi:10.4028/www.scientific.net/AMM.166-169.1416

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Damage Detection of Reinforced Concrete Beams by...

Damage Detection of Reinforced Concrete Beams by Wavelet Analysis

Abstract:

Simple-supported reinforced concrete (R.C) beams are subjected to an increasing static load in the middle to introduce cracks, and the last load step corresponds to failure. After each load step and unloading, an experimental dynamic monitoring is performed. Multiple degree freedom dynamic equation of the test beams is wavelet transformed, and structural dynamic response expression on multi-scale is acquired. It’s shown that multi-scale decomposition of signal comprises more structural damage information. By means of DASP signal processing system, binary wavelet transformation is applied to dynamic signal of reinforced concrete beams on different damage state. Through analyzing wave-figure of all frequency scales, the damage of reinforced concrete beams is detected.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

1416-1421

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.1416

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Online since:

May 2012

Authors:

Gang Xue

Keywords:

Damage Identification, Dynamic Test, Multi-Scale Decomposition, Reinforced Concrete (RC) Beam, Wavelet Analysis

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