Experimental study on Statistical Damage Detection of RC Structures based on Wavelet Packet Analysis

被引：6
|
作者：
Zhu, X. Q. [1 ]
Law, S. S. [2 ]
Jayawardhan, M. [1 ]
机构：
[1] Univ Western Sydney, Sch Engn, Penrith, NSW 1797, Australia
[2] Hong Kong Polytech Univ, Civil & Struct Engn Dept, Kowloon, Peoples R China
来源：
9TH INTERNATIONAL CONFERENCE ON DAMAGE ASSESSMENT OF STRUCTURES (DAMAS 2011) | 2011年 / 305卷
关键词：
D O I：
10.1088/1742-6596/305/1/012107
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A novel damage indicator based on wavelet packet transform is developed in this study for structural health monitoring. The response signal of a structure under an impact load is normalized and then decomposed into wavelet packet components. Energies of these wavelet packet components are then calculated to obtain the energy distribution. A statistical indicator is developed to describe the damage extent of the structure. This approach is applied to the test results from simply supported reinforced concrete beams in the laboratory. Cases with single damage are created from static loading, and accelerations of the structure from under impact loads are analyzed. Results show that the method can be used for the damage monitoring and assessment of the structure.
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收藏
页数：9
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