Damage detection of reinforced concrete beams by wavelet analysis

被引：3
|
作者：
Xue, Gang [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Architecture & Civil Engn, Baotou 014010, Peoples R China
来源：
PROGRESS IN STRUCTURE, PTS 1-4 | 2012年 / 166-169卷
关键词：
reinforced concrete beams; dynamic test; wavelet analysis; multi-scale decomposition; damage identification;
D O I：
10.4028/www.scientific.net/AMM.166-169.1416
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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.
引用
收藏
页码：1416 / 1421
页数：6
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