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Article: Effects of traffic vibration on curing concrete stitch: Part II-cracking, debonding and strength reduction

TitleEffects of traffic vibration on curing concrete stitch: Part II-cracking, debonding and strength reduction
Authors
KeywordsBridge Widening
Curing Concrete
Vibration Resistance
Issue Date2007
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2007, v. 29 n. 11, p. 2881-2892 How to Cite?
AbstractIn bridge widening projects, the possible damaging effects of traffic vibration on curing concrete stitch have been causing concern, and design engineers have to consider what traffic restrictions or mitigation measures are necessary. However, different researchers, using different test methods, have obtained widely different results for the threshold vibration causing damage. To resolve this problem, a new vibration test method that can more closely simulate the actual loading conditions of the curing concrete stitch has been developed as presented in Part I [Kwan AKH, Ng PL. Effects of traffic vibration on curing concrete stitch: Part I-test method and control program. Engineering Structures 2007; 29(11):2871-80]. Herein, the results of an experimental program, in which a total of 24 specimens have been tested using the new method, are presented. In the experimental program, the specimens were subjected to different amplitudes of vibration and the damages so caused to each specimen were assessed in terms of cracking, reduction in bond strength, reduction in contraflexural strength and slackness at the construction joints. The results revealed that whilst the threshold curvature causing cracking or slackness is relatively small, the threshold curvature causing significant reduction in bond or contraflexural strength is relatively large, and in fact larger than expected. © 2007 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150427
ISSN
2015 Impact Factor: 1.893
2015 SCImago Journal Rankings: 1.813
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, PLen_US
dc.contributor.authorKwan, AKHen_US
dc.date.accessioned2012-06-26T06:04:39Z-
dc.date.available2012-06-26T06:04:39Z-
dc.date.issued2007en_US
dc.identifier.citationEngineering Structures, 2007, v. 29 n. 11, p. 2881-2892en_US
dc.identifier.issn0141-0296en_US
dc.identifier.urihttp://hdl.handle.net/10722/150427-
dc.description.abstractIn bridge widening projects, the possible damaging effects of traffic vibration on curing concrete stitch have been causing concern, and design engineers have to consider what traffic restrictions or mitigation measures are necessary. However, different researchers, using different test methods, have obtained widely different results for the threshold vibration causing damage. To resolve this problem, a new vibration test method that can more closely simulate the actual loading conditions of the curing concrete stitch has been developed as presented in Part I [Kwan AKH, Ng PL. Effects of traffic vibration on curing concrete stitch: Part I-test method and control program. Engineering Structures 2007; 29(11):2871-80]. Herein, the results of an experimental program, in which a total of 24 specimens have been tested using the new method, are presented. In the experimental program, the specimens were subjected to different amplitudes of vibration and the damages so caused to each specimen were assessed in terms of cracking, reduction in bond strength, reduction in contraflexural strength and slackness at the construction joints. The results revealed that whilst the threshold curvature causing cracking or slackness is relatively small, the threshold curvature causing significant reduction in bond or contraflexural strength is relatively large, and in fact larger than expected. © 2007 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstructen_US
dc.relation.ispartofEngineering Structuresen_US
dc.subjectBridge Wideningen_US
dc.subjectCuring Concreteen_US
dc.subjectVibration Resistanceen_US
dc.titleEffects of traffic vibration on curing concrete stitch: Part II-cracking, debonding and strength reductionen_US
dc.typeArticleen_US
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_US
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.engstruct.2007.01.033en_US
dc.identifier.scopuseid_2-s2.0-35448969200en_US
dc.identifier.hkuros152076-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-35448969200&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume29en_US
dc.identifier.issue11en_US
dc.identifier.spage2881en_US
dc.identifier.epage2892en_US
dc.identifier.isiWOS:000251485500008-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridNg, PL=15045284100en_US
dc.identifier.scopusauthoridKwan, AKH=7101738204en_US

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