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Article: Effect of baseline calibration on assessment of long-term performance of cable-stayed bridges

TitleEffect of baseline calibration on assessment of long-term performance of cable-stayed bridges
Authors
Issue Date2013
PublisherElsevier Science. The Journal's web site is located at http://www.elsevier.com/locate/engfailanal
Citation
Engineering Failure Analysis, 2013, v. 35, p. 234-246 How to Cite?
AbstractTo enable the long-term health monitoring and condition assessment of a long-span cable-stayed bridge, an accurate baseline finite element model to reflect the current structural behaviour is indispensable. With proper calibration, the model provides realistic predictions of the static and dynamic behaviour. This paper describes the development of baseline model of Ting Kau Bridge in Hong Kong using the cable forces as the basic parameters, with the measured frequencies and the initial equilibrium configuration of the bridge as the reference. Methods to estimate the fatigue lives of structural components are reviewed with special attention paid to the mean stress effect. The short-term performance and long-term performance of Ting Kau Bridge are studied based on both the initial model without baseline calibration and the baseline model. While the stress amplitudes due to moving loads do not change much, the mean stresses do change at many critical locations. As the mean stress effect is significant in the estimation of fatigue lives, baseline calibration of cable-stayed bridges is considered essential.
Persistent Identifierhttp://hdl.handle.net/10722/202699
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZHANG, Jen_US
dc.contributor.authorAu, FTKen_US
dc.date.accessioned2014-09-19T09:14:18Z-
dc.date.available2014-09-19T09:14:18Z-
dc.date.issued2013en_US
dc.identifier.citationEngineering Failure Analysis, 2013, v. 35, p. 234-246en_US
dc.identifier.urihttp://hdl.handle.net/10722/202699-
dc.description.abstractTo enable the long-term health monitoring and condition assessment of a long-span cable-stayed bridge, an accurate baseline finite element model to reflect the current structural behaviour is indispensable. With proper calibration, the model provides realistic predictions of the static and dynamic behaviour. This paper describes the development of baseline model of Ting Kau Bridge in Hong Kong using the cable forces as the basic parameters, with the measured frequencies and the initial equilibrium configuration of the bridge as the reference. Methods to estimate the fatigue lives of structural components are reviewed with special attention paid to the mean stress effect. The short-term performance and long-term performance of Ting Kau Bridge are studied based on both the initial model without baseline calibration and the baseline model. While the stress amplitudes due to moving loads do not change much, the mean stresses do change at many critical locations. As the mean stress effect is significant in the estimation of fatigue lives, baseline calibration of cable-stayed bridges is considered essential.en_US
dc.languageengen_US
dc.publisherElsevier Science. The Journal's web site is located at http://www.elsevier.com/locate/engfailanalen_US
dc.relation.ispartofEngineering Failure Analysisen_US
dc.rightsEngineering Failure Analysis. Copyright © Elsevier Science.en_US
dc.titleEffect of baseline calibration on assessment of long-term performance of cable-stayed bridgesen_US
dc.typeArticleen_US
dc.identifier.emailAu, FTK: francis.au@hku.hken_US
dc.identifier.authorityAu, FTK=rp00083en_US
dc.identifier.doi10.1016/j.engfailanal.2013.01.031en_US
dc.identifier.hkuros237590en_US
dc.identifier.volume35en_US
dc.identifier.spage234en_US
dc.identifier.epage246en_US
dc.identifier.isiWOS:000329079200022-
dc.publisher.placeNew Yorken_US

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