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Article: Case study on the restoration of flexural capacity of continuous one-way slabs with cutouts

TitleCase study on the restoration of flexural capacity of continuous one-way slabs with cutouts
Authors
KeywordsField testing
Strengthening
Flexure
Slabs
Openings
Issue Date2011
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/cc.html
Citation
Journal of Composites for Construction, 2011, v. 15 n. 6, p. 992-998 How to Cite?
AbstractIntroducing openings in existing reinforced concrete (RC) slabs can severely weaken the slabs because of the cut out of the concrete and reinforcing steel. This paper reports field tests on the use of carbon fiber-reinforced polymer (CFRP) composite strengthening techniques to restore the flexural capacity of RC slabs after having openings cut out in the positive moment region. The uniqueness of this study is that the tests were performed on an existing multistory RC building that was scheduled for demolition. Five tests on five different slabs were conducted using three different strengthening techniques-namely, externally bonded (EB) CFRP plates, EB CFRP plates with CFRP anchors, and near-surface mounted (NSM) CFRP strips-to determine the most effective system for strengthening. Test results showed that the three strengthening techniques increased the load-carrying capacity of the slabs with openings, with the NSM technique being more effective than the EB technique. However, the use of CFRP anchors to mechanically anchor the EB plates prevented complete detachment, and hence enabled the restoration of the slab to its full flexural capacity. © 2011 American Society of Civil Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/163905
ISSN
2015 Impact Factor: 2.503
2015 SCImago Journal Rankings: 2.051
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSeliem, HMen_US
dc.contributor.authorSeracino, Ren_US
dc.contributor.authorSumner, EAen_US
dc.contributor.authorSmith, STen_US
dc.date.accessioned2012-09-20T07:52:49Z-
dc.date.available2012-09-20T07:52:49Z-
dc.date.issued2011en_US
dc.identifier.citationJournal of Composites for Construction, 2011, v. 15 n. 6, p. 992-998en_US
dc.identifier.issn1090-0268-
dc.identifier.urihttp://hdl.handle.net/10722/163905-
dc.description.abstractIntroducing openings in existing reinforced concrete (RC) slabs can severely weaken the slabs because of the cut out of the concrete and reinforcing steel. This paper reports field tests on the use of carbon fiber-reinforced polymer (CFRP) composite strengthening techniques to restore the flexural capacity of RC slabs after having openings cut out in the positive moment region. The uniqueness of this study is that the tests were performed on an existing multistory RC building that was scheduled for demolition. Five tests on five different slabs were conducted using three different strengthening techniques-namely, externally bonded (EB) CFRP plates, EB CFRP plates with CFRP anchors, and near-surface mounted (NSM) CFRP strips-to determine the most effective system for strengthening. Test results showed that the three strengthening techniques increased the load-carrying capacity of the slabs with openings, with the NSM technique being more effective than the EB technique. However, the use of CFRP anchors to mechanically anchor the EB plates prevented complete detachment, and hence enabled the restoration of the slab to its full flexural capacity. © 2011 American Society of Civil Engineers.-
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/cc.htmlen_US
dc.relation.ispartofJournal of Composites for Constructionen_US
dc.rightsJournal of Composites for Construction. Copyright © American Society of Civil Engineers.-
dc.subjectField testing-
dc.subjectStrengthening-
dc.subjectFlexure-
dc.subjectSlabs-
dc.subjectOpenings-
dc.titleCase study on the restoration of flexural capacity of continuous one-way slabs with cutoutsen_US
dc.typeArticleen_US
dc.identifier.emailSeracino, R: rudi_seracino@ncsu.eduen_US
dc.identifier.emailSmith, ST: stsmith@hku.hk-
dc.identifier.authoritySmith, ST=rp00168en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)CC.1943-5614.0000232-
dc.identifier.scopuseid_2-s2.0-84862957384-
dc.identifier.hkuros178909en_US
dc.identifier.hkuros210132-
dc.identifier.volume15en_US
dc.identifier.issue6en_US
dc.identifier.spage992en_US
dc.identifier.epage998en_US
dc.identifier.isiWOS:000299132000012-
dc.publisher.placeUnited States-

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