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Article: Non-linear analysis and moment redistribution of prestressed concrete members

TitleNon-linear analysis and moment redistribution of prestressed concrete members
Authors
KeywordsConcrete structures
Buildings, structures & design
Beams & girders
Issue Date2012
PublisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.icevirtuallibrary.com/content/serial/eacm
Citation
Proceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics, 2012, v. 166 n. 1, p. 9-21 How to Cite?
AbstractMost of the existing codes of practice allow moment redistribution to be applied to reinforced concrete design with upper limits of 20–30%. It is, however, questionable whether the same limits are valid for the design of prestressed concrete members. Research in this area dates back to the 1950s, but investigations have mainly focused on the behaviour at different servicing limits and the effects of various parameters. Work has seldom been done on the effects of moment redistribution on structural safety, as the load-carrying capacity can be compromised with increase in moment redistribution owing to the limited ductility of concrete sections. In the present study, a method for non-linear finite-element analysis is developed to examine the relationship between the reduction in load-carrying capacity and the moment redistribution applied to the design of prestressed concrete members, and how such a relationship is affected by section deformability and plastic hinge lengths. Results suggest that due care must be exercised when codified moment redistribution for prestressed concrete members is applied.
Persistent Identifierhttp://hdl.handle.net/10722/163831
ISSN
2015 SCImago Journal Rankings: 0.194

 

DC FieldValueLanguage
dc.contributor.authorLeung, CYCen_US
dc.contributor.authorAu, FTKen_US
dc.contributor.authorKwan, AKHen_US
dc.date.accessioned2012-09-20T07:52:24Z-
dc.date.available2012-09-20T07:52:24Z-
dc.date.issued2012en_US
dc.identifier.citationProceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics, 2012, v. 166 n. 1, p. 9-21en_US
dc.identifier.issn1755-0777-
dc.identifier.urihttp://hdl.handle.net/10722/163831-
dc.description.abstractMost of the existing codes of practice allow moment redistribution to be applied to reinforced concrete design with upper limits of 20–30%. It is, however, questionable whether the same limits are valid for the design of prestressed concrete members. Research in this area dates back to the 1950s, but investigations have mainly focused on the behaviour at different servicing limits and the effects of various parameters. Work has seldom been done on the effects of moment redistribution on structural safety, as the load-carrying capacity can be compromised with increase in moment redistribution owing to the limited ductility of concrete sections. In the present study, a method for non-linear finite-element analysis is developed to examine the relationship between the reduction in load-carrying capacity and the moment redistribution applied to the design of prestressed concrete members, and how such a relationship is affected by section deformability and plastic hinge lengths. Results suggest that due care must be exercised when codified moment redistribution for prestressed concrete members is applied.-
dc.languageengen_US
dc.publisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.icevirtuallibrary.com/content/serial/eacm-
dc.relation.ispartofProceedings of the Institution of Civil Engineers: Engineering and Computational Mechanicsen_US
dc.rightsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectConcrete structures-
dc.subjectBuildings, structures & design-
dc.subjectBeams & girders-
dc.titleNon-linear analysis and moment redistribution of prestressed concrete membersen_US
dc.typeArticleen_US
dc.identifier.emailAu, FTK: francis.au@hku.hken_US
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_US
dc.identifier.authorityAu, FTK=rp00083en_US
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1680/eacm.11.00021-
dc.identifier.hkuros224930en_US
dc.identifier.volume166-
dc.identifier.issue1-
dc.identifier.spage9-
dc.identifier.epage21-
dc.publisher.placeUnited Kingdom-

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