Structural Pounding Detection by Using Wavelet Scalogram
Joint Authors
Halling, Marvin W.
Xing, Shutao
Meng, Qingli
Source
Advances in Acoustics and Vibration
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-13
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Structural pounding can cause considerable damage and even lead to collapse of structures.
Most research focuses on modeling, parameter investigation, and mitigation approaches.
With the development of structural health monitoring, the on-line detection of pounding becomes possible.
The detection of pounding can provide useful information of potential damage of structures.
This paper proposed using wavelet scalograms of dynamic response to detect pounding and examined the feasibility of this method.
Numerical investigations were performed on a pounding system that consisted of a damped single-degree-of-freedom (SDOF) structure and a rigid barrier.
Hertz contact model was used to simulate pounding behavior.
The responses and pounding forces of the system under harmonic and earthquake excitations were numerically solved.
The wavelet scalograms of acceleration responses were used to identify poundings.
It was found that the scalograms can indicate the occurrence of pounding and occurrence time very well.
The severity of the poundings was also approximately estimated.
Experimental studies were carried out, in which shake table tests were conducted on a bridge model that underwent pounding between its different components during ground motion excitation.
The wavelet scalograms of the bridge responses indicated pounding occurrence quite well.
Hence the conclusions from the numerical studies were verified experimentally.Erratum to “Structural Pounding Detection by Using Wavelet Scalogram”dx.doi.org/10.1155/2012/253121
American Psychological Association (APA)
Xing, Shutao& Halling, Marvin W.& Meng, Qingli. 2012. Structural Pounding Detection by Using Wavelet Scalogram. Advances in Acoustics and Vibration،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-499442
Modern Language Association (MLA)
Xing, Shutao…[et al.]. Structural Pounding Detection by Using Wavelet Scalogram. Advances in Acoustics and Vibration No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-499442
American Medical Association (AMA)
Xing, Shutao& Halling, Marvin W.& Meng, Qingli. Structural Pounding Detection by Using Wavelet Scalogram. Advances in Acoustics and Vibration. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-499442
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499442