Paper Title:
Wavelet Analysis in Damage Detection for Bridge Structure
  Abstract

The damage of structure leads to variation of structural modal parameter,so the wavelet transform for damage detection is introduced in this paper for considering the variation. First, structural dynamic response signal on the basis of the vibration-based structural damage diagnosis methods is calculated by structural analysis in the paper, then, each of sub-signals is calculated according to wavelet analysis, also, the sub-signal energy spectrum of dynamic response signal and energy spectrum variation are known. By observing the difference of the sub-signal and the variation of the sub-signal energy spectrum, we can get the variation of structural modal parameter and the sub-signal energy spectrum due to the performance degradation of the whole structure and local variations of damage level and location ,so that this method can be used in on-line damage detection for bridge structure.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
813-816
DOI
10.4028/www.scientific.net/KEM.417-418.813
Citation
W. B. Hu, W. Hu, Y. Zheng, "Wavelet Analysis in Damage Detection for Bridge Structure", Key Engineering Materials, Vols. 417-418, pp. 813-816, 2010
Online since
October 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Huan Guo Chen, Yun Ju Yan, Jie Sheng Jiang
Abstract:A vibration-based approach to detect crack damage in a cantilever composite wingbox is studied using the improved Hilbert-Huang Transform...
539
Authors: Zhe Feng Yu, Zhi Chun Yang
Abstract:A new method for structural damage detection based on the Cross Correlation Function Amplitude Vector (CorV) of the measured vibration...
2317
Authors: Peng Sun, Ai Qun Li, You Liang Ding, Yang Deng
Abstract:The damage alarming analysis based on wavelet packet energy spectrum is performed with regard to the experimental data of Benchmark steel...
2693
Authors: Fei Zheng, Jin Yu Xu, Yong Chen, De Hui Zhao
Abstract:Underground arch structure is an important structure form of civil air defense engineering, and its damage detection is an important link in...
2576
Authors: Long Qiao, Asad Esmaeily
Chapter 2: Monitoring and Control of Structures
Abstract:Deterioration of structures due to aging, cumulative crack growth or excessive response significantly affects the performance and safety of...
834