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Article: Effects of random road surface roughness and long-term deflection of prestressed concrete girder and cable-stayed bridges on impact due to moving vehicles

TitleEffects of random road surface roughness and long-term deflection of prestressed concrete girder and cable-stayed bridges on impact due to moving vehicles
Authors
Issue Date2001
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/compstruc
Citation
Computers And Structures, 2001, v. 79 n. 8, p. 853-872 How to Cite?
AbstractThe effects of random road surface roughness and long-term deflection of prestressed concrete bridges on the impact effects due to moving vehicles are investigated. The concrete bridges studied include multi-span girder bridges and cable-stayed bridges. The random road surface roughness is described by a zero-mean stationary Gaussian random process, while the long-term deflection of the concrete deck is represented as a kind of global roadway surface roughness in the study. The bridge is modelled by finite element method. Each moving vehicle is idealized as a one-foot dynamic system, in which a mass is supported by a spring and a dashpot. Numerical results show that the effect of random road surface roughness on the impact induced by moving vehicles is significant in the girder bridges, while that of the long-term deflection of concrete deck is small to moderate. The impact effects of the random road surface roughness and the long-term deflection of concrete deck on a cable-stayed bridge vary a lot depending on the location. In general, such effects on the bridge deck are more significant at sections closed to the bridge towers. Such effects on the bending moment at the tower base are also significant. The effects on the stay cables vary much, with significant effects on the short cables and negligible effects on the longest cables.
Persistent Identifierhttp://hdl.handle.net/10722/70534
ISSN
2015 Impact Factor: 2.425
2015 SCImago Journal Rankings: 1.710
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorAu, FTKen_HK
dc.contributor.authorCheng, YSen_HK
dc.contributor.authorCheung, YKen_HK
dc.date.accessioned2010-09-06T06:23:50Z-
dc.date.available2010-09-06T06:23:50Z-
dc.date.issued2001en_HK
dc.identifier.citationComputers And Structures, 2001, v. 79 n. 8, p. 853-872en_HK
dc.identifier.issn0045-7949en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70534-
dc.description.abstractThe effects of random road surface roughness and long-term deflection of prestressed concrete bridges on the impact effects due to moving vehicles are investigated. The concrete bridges studied include multi-span girder bridges and cable-stayed bridges. The random road surface roughness is described by a zero-mean stationary Gaussian random process, while the long-term deflection of the concrete deck is represented as a kind of global roadway surface roughness in the study. The bridge is modelled by finite element method. Each moving vehicle is idealized as a one-foot dynamic system, in which a mass is supported by a spring and a dashpot. Numerical results show that the effect of random road surface roughness on the impact induced by moving vehicles is significant in the girder bridges, while that of the long-term deflection of concrete deck is small to moderate. The impact effects of the random road surface roughness and the long-term deflection of concrete deck on a cable-stayed bridge vary a lot depending on the location. In general, such effects on the bridge deck are more significant at sections closed to the bridge towers. Such effects on the bending moment at the tower base are also significant. The effects on the stay cables vary much, with significant effects on the short cables and negligible effects on the longest cables.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/compstrucen_HK
dc.relation.ispartofComputers and Structuresen_HK
dc.titleEffects of random road surface roughness and long-term deflection of prestressed concrete girder and cable-stayed bridges on impact due to moving vehiclesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0045-7949&volume=79 &issue=8&spage=853 &epage= 872&date=2001&atitle=Effects+of+random+road+surface+roughness+and+long-term+deflection+of+prestressed+concrete+girder+and+cable-stayed+bridges+on+impact+due+to+moving+vehiclesen_HK
dc.identifier.emailAu, FTK:francis.au@hku.hken_HK
dc.identifier.emailCheung, YK:hreccyk@hkucc.hku.hken_HK
dc.identifier.authorityAu, FTK=rp00083en_HK
dc.identifier.authorityCheung, YK=rp00104en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0045-7949(00)00180-2en_HK
dc.identifier.scopuseid_2-s2.0-0034831520en_HK
dc.identifier.hkuros60473en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034831520&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume79en_HK
dc.identifier.issue8en_HK
dc.identifier.spage853en_HK
dc.identifier.epage872en_HK
dc.identifier.isiWOS:000167207600006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridAu, FTK=7005204072en_HK
dc.identifier.scopusauthoridCheng, YS=8916426300en_HK
dc.identifier.scopusauthoridCheung, YK=7202111065en_HK

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