Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/6755
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Zhang, J | - |
dc.creator | Xu, YL | - |
dc.creator | Xia, Y | - |
dc.creator | Li, J | - |
dc.date.accessioned | 2014-12-30T08:36:13Z | - |
dc.date.available | 2014-12-30T08:36:13Z | - |
dc.identifier.issn | 1225-4568 | - |
dc.identifier.uri | http://hdl.handle.net/10397/6755 | - |
dc.language.iso | en | en_US |
dc.publisher | Techno Press | en_US |
dc.subject | Damage detection | en_US |
dc.subject | Measurement noise | en_US |
dc.subject | Sensitivity | en_US |
dc.subject | Statistical moment | en_US |
dc.title | A new statistical moment-based structural damage detection method | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 445 | - |
dc.identifier.epage | 466 | - |
dc.identifier.volume | 30 | - |
dc.identifier.issue | 4 | - |
dcterms.abstract | This paper presents a novel structural damage detection method with a new damage index based on the statistical moments of dynamic responses of a structure under a random excitation. After a brief introduction to statistical moment theory, the principle of the new method is put forward in terms of a single-degree-of-freedom (SDOF) system. The sensitivity of statistical moment to structural damage is discussed for various types of structural responses and different orders of statistical moment. The formulae for statistical moment-based damage detection are derived. The effect of measurement noise on damage detection is ascertained. The new damage index and the proposed statistical moment-based damage detection method are then extended to multi-degree-of-freedom (MDOF) systems with resort to the least-squares method. As numerical studies, the proposed method is applied to both single and multi-story shear buildings. Numerical results show that the fourth-order statistical moment of story drifts is a more sensitive indicator to structural stiffness reduction than the natural frequencies, the second order moment of story drift, and the fourth-order moments of velocity and acceleration responses of the shear building. The fourth-order statistical moment of story drifts can be used to accurately identify both location and severity of structural stiffness reduction of the shear building. Furthermore, a significant advantage of the proposed damage detection method lies in that it is insensitive to measurement noise. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Structural engineering and mechanics, 2008, v. 30, no. 4, p. 445-466 | - |
dcterms.isPartOf | Structural engineering and mechanics | - |
dcterms.issued | 2008 | - |
dc.identifier.isi | WOS:000260443400004 | - |
dc.identifier.scopus | 2-s2.0-54949147275 | - |
dc.identifier.eissn | 1598-6217 | - |
dc.identifier.rosgroupid | r40443 | - |
dc.description.ros | 2008-2009 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
SEM08-30-04-445.pdf | 2.49 MB | Adobe PDF | View/Open |
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