Development of an Automated Wireless Tension Force Estimation System for Cable-stayed Bridges

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dc.contributor.authorCho, Soo-Jinko
dc.contributor.authorLynch, JPko
dc.contributor.authorLee, JJko
dc.contributor.authorYun, Chung-Bangko
dc.date.accessioned2013-03-09T11:04:46Z-
dc.date.available2013-03-09T11:04:46Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2010-02-
dc.identifier.citationJOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, v.21, pp.361 - 376-
dc.identifier.issn1045-389X-
dc.identifier.urihttp://hdl.handle.net/10203/96163-
dc.description.abstractCable-supported bridges rely on the use of steel cables to support the bridge deck and load on it. Cable tension forces are monitored during construction to assist the alignment of cables and to ensure no cables are overloaded. Given that the cables are critical load carrying elements, it is prudent to routinely monitor the levels of cable tensions during operation. With current measurement methods being costly and labor-intensive, this article proposes an automated and low-cost wireless sensor system for continuous monitoring of the cable tension based on the vibration signature of the cable. A vibration-based tension force estimation method using a peak picking algorithm is explored by embedding it in the computational core of a wireless sensor. Welch's method to average Fourier spectra from the segments of a long time history signal is employed to remove the non-stationarity of a short-duration acceleration record, which is a limit of the memory-constrained wireless sensor. A series of laboratory tests are conducted on a slender braided steel cable with a variety of cable sags and tension forces. Excellent agreements have been found between the actual tensions and those estimated by the present wireless system.-
dc.languageEnglish-
dc.publisherSAGE PUBLICATIONS LTD-
dc.subjectSENSING UNIT-
dc.subjectDESIGN-
dc.subjectVALIDATION-
dc.subjectALGORITHMS-
dc.subjectSENSORS-
dc.subjectNETWORK-
dc.titleDevelopment of an Automated Wireless Tension Force Estimation System for Cable-stayed Bridges-
dc.typeArticle-
dc.identifier.wosid000275169300014-
dc.identifier.scopusid2-s2.0-76649141183-
dc.type.rimsART-
dc.citation.volume21-
dc.citation.beginningpage361-
dc.citation.endingpage376-
dc.citation.publicationnameJOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES-
dc.contributor.localauthorYun, Chung-Bang-
dc.contributor.nonIdAuthorLynch, JP-
dc.contributor.nonIdAuthorLee, JJ-
dc.type.journalArticleArticle; Proceedings Paper-
dc.subject.keywordAuthorcable tension-
dc.subject.keywordAuthorwireless sensor-
dc.subject.keywordAuthormodal analysis-
dc.subject.keywordAuthorWelch&apos-
dc.subject.keywordAuthors method-
dc.subject.keywordAuthorembedded software-
dc.subject.keywordPlusSENSING UNIT-
dc.subject.keywordPlusDESIGN-
dc.subject.keywordPlusVALIDATION-
dc.subject.keywordPlusALGORITHMS-
dc.subject.keywordPlusSENSORS-
dc.subject.keywordPlusNETWORK-
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CE-Journal Papers(저널논문)
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