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Article: Improved hanger design for robustness of through-arch bridges

TitleImproved hanger design for robustness of through-arch bridges
Authors
Issue Date2013
PublisherThomas Telford. The Journal's web site is located at http://www.icevirtuallibrary.com/content/serial/bren
Citation
Proceedings of the ICE - Bridge Engineering, 2013, v. 166 n. BE3, p. 193-204 How to Cite?
AbstractHangers in through arch bridges are important components since they suspend the entire bridge deck from the arch ribs. Local damage at a hanger may lead to subsequent damage of various components in the vicinity or even progressive collapse of the bridge. After reviewing the conventional design of double-hangers in through arch bridges, this paper puts forward a new design approach. The suitability and robustness of this new approach are then verified by numerical simulation of a real bridge. The impact effects induced by local fracture of a hanger on the other structural members are then simulated by dynamic time-history analyses. The new approach of hanger design is shown to improve the structural robustness. In particular, when one or more hangers are damaged thereby causing local failure, the through arch bridge will not be endangered and will still maintain reasonable overall load-carrying capacity so that the necessary emergency measures can be taken.
Persistent Identifierhttp://hdl.handle.net/10722/202697

 

DC FieldValueLanguage
dc.contributor.authorJiang, Ren_US
dc.contributor.authorAu, FTKen_US
dc.contributor.authorWu, QMen_US
dc.date.accessioned2014-09-19T09:14:18Z-
dc.date.available2014-09-19T09:14:18Z-
dc.date.issued2013en_US
dc.identifier.citationProceedings of the ICE - Bridge Engineering, 2013, v. 166 n. BE3, p. 193-204en_US
dc.identifier.urihttp://hdl.handle.net/10722/202697-
dc.description.abstractHangers in through arch bridges are important components since they suspend the entire bridge deck from the arch ribs. Local damage at a hanger may lead to subsequent damage of various components in the vicinity or even progressive collapse of the bridge. After reviewing the conventional design of double-hangers in through arch bridges, this paper puts forward a new design approach. The suitability and robustness of this new approach are then verified by numerical simulation of a real bridge. The impact effects induced by local fracture of a hanger on the other structural members are then simulated by dynamic time-history analyses. The new approach of hanger design is shown to improve the structural robustness. In particular, when one or more hangers are damaged thereby causing local failure, the through arch bridge will not be endangered and will still maintain reasonable overall load-carrying capacity so that the necessary emergency measures can be taken.en_US
dc.languageengen_US
dc.publisherThomas Telford. The Journal's web site is located at http://www.icevirtuallibrary.com/content/serial/brenen_US
dc.relation.ispartofProceedings of the ICE - Bridge Engineeringen_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.titleImproved hanger design for robustness of through-arch bridgesen_US
dc.typeArticleen_US
dc.identifier.emailJiang, R: jiangrj@hku.hken_US
dc.identifier.emailAu, FTK: francis.au@hku.hken_US
dc.identifier.authorityAu, FTK=rp00083en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1680/bren.11.00025en_US
dc.identifier.hkuros237585en_US
dc.identifier.volume166en_US
dc.identifier.issueBE3en_US
dc.identifier.spage193en_US
dc.identifier.epage204en_US
dc.publisher.placeLondonen_US

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