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Article: Time-dependent effects on dynamic properties of cable-stayed bridges

TitleTime-dependent effects on dynamic properties of cable-stayed bridges
Authors
KeywordsCable-stayed bridges
Concrete creep
Geometric nonlinearities
Structural health monitoring systems
Time-dependent behaviour
Issue Date2012
PublisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5
Citation
Structural Engineering and Mechanics, 2012, v. 41 n. 1, p. 139-155 How to Cite?
AbstractStructural health monitoring systems are often installed on bridges to provide assessments of the need for structural maintenance and repair. Damage or deterioration may be detected by observation of changes in bridge characteristics evaluated from measured structural responses. However, construction materials such as concrete and steel cables exhibit certain time-dependent behaviour, which also results in changes in structural characteristics. If these are not accounted for properly, false alarms may arise. This paper proposes a systematic and efficient method to study the time-dependent effects on the dynamic properties of cable-stayed bridges. After establishing the finite element model of a cable-stayed bridge taking into account geometric nonlinearities and time-dependent behaviour, long-term time-dependent analysis is carried out by time integration. Then the dynamic properties of the bridge after a certain period can be obtained. The effects of time-dependent behaviour of construction materials on the dynamic properties of typical cable-stayed bridges are investigated in detail.
Persistent Identifierhttp://hdl.handle.net/10722/150642
ISSN
2015 Impact Factor: 1.021
2015 SCImago Journal Rankings: 0.450
References

 

DC FieldValueLanguage
dc.contributor.authorAu, FTKen_US
dc.contributor.authorSi, Xen_US
dc.date.accessioned2012-06-26T06:06:23Z-
dc.date.available2012-06-26T06:06:23Z-
dc.date.issued2012en_US
dc.identifier.citationStructural Engineering and Mechanics, 2012, v. 41 n. 1, p. 139-155en_US
dc.identifier.issn1225-4568en_US
dc.identifier.urihttp://hdl.handle.net/10722/150642-
dc.description.abstractStructural health monitoring systems are often installed on bridges to provide assessments of the need for structural maintenance and repair. Damage or deterioration may be detected by observation of changes in bridge characteristics evaluated from measured structural responses. However, construction materials such as concrete and steel cables exhibit certain time-dependent behaviour, which also results in changes in structural characteristics. If these are not accounted for properly, false alarms may arise. This paper proposes a systematic and efficient method to study the time-dependent effects on the dynamic properties of cable-stayed bridges. After establishing the finite element model of a cable-stayed bridge taking into account geometric nonlinearities and time-dependent behaviour, long-term time-dependent analysis is carried out by time integration. Then the dynamic properties of the bridge after a certain period can be obtained. The effects of time-dependent behaviour of construction materials on the dynamic properties of typical cable-stayed bridges are investigated in detail.en_US
dc.languageengen_US
dc.publisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5en_US
dc.relation.ispartofStructural Engineering and Mechanicsen_US
dc.subjectCable-stayed bridgesen_US
dc.subjectConcrete creepen_US
dc.subjectGeometric nonlinearitiesen_US
dc.subjectStructural health monitoring systemsen_US
dc.subjectTime-dependent behaviouren_US
dc.titleTime-dependent effects on dynamic properties of cable-stayed bridgesen_US
dc.typeArticleen_US
dc.identifier.emailAu, FTK: francis.au@hku.hken_US
dc.identifier.authorityAu, FTK=rp00083en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-84855480966en_US
dc.identifier.hkuros209097-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84855480966&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume41en_US
dc.identifier.issue1en_US
dc.identifier.spage139en_US
dc.identifier.epage155en_US
dc.publisher.placeKorea, Republic ofen_US
dc.identifier.scopusauthoridSi, XT=36676577700en_US
dc.identifier.scopusauthoridAu, FTK=7005204072en_US

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