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Article: Retrofit of deep concrete coupling beams by a laterally restrained side plate

TitleRetrofit of deep concrete coupling beams by a laterally restrained side plate
Authors
KeywordsBeams
Buckling
Coupling
Plates
Rehabilitation
Reinforced Concrete
Seismic Effects
Steel Plates
Issue Date2011
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.html
Citation
Journal Of Structural Engineering, 2011, v. 137 n. 4, p. 503-512 How to Cite?
AbstractThe existing designs for deep reinforced-concrete (RC) coupling beams with low shear-span ratios and conventionally reinforced shear stirrups tend to fail in a brittle way with limited ductility and deformability under reversed cyclic loading. This paper aims to develop a new retrofitting method for existing deep RC coupling beams that can enhance the deformability and energy dissipation while maintaining flexural stiffness, improving the beams' performance during an earthquake. Experiments were conducted to test four half-scale deep RC coupling beams with the same geometry and reinforcement layout but with different retrofitting schemes. One beam was tested without retrofitting to act as a control, whereas the others were retrofitted by a bolted steel plate with or without adding a buckling restraining device. This study reveals that the deformation and energy dissipation of the deep RC coupling beams retrofitted with restrained steel plates improved while the flexural stiffness did not increase. Moreover, by using laterally restrained steel plates, the specimens had better postpeak behavior, a more ductile failure mode, and better rotation deformability. © 2011 American Society of Civil Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/150563
ISSN
2015 Impact Factor: 1.7
2015 SCImago Journal Rankings: 1.431
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong Kong SARHKU7168/06E
Funding Information:

The work described in this paper has been fully supported by the Research Grants Council of Hong Kong SAR (Project No. HKU7168/06E).

References

 

DC FieldValueLanguage
dc.contributor.authorCheng, Ben_US
dc.contributor.authorSu, RKLen_US
dc.date.accessioned2012-06-26T06:05:43Z-
dc.date.available2012-06-26T06:05:43Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Structural Engineering, 2011, v. 137 n. 4, p. 503-512en_US
dc.identifier.issn0733-9445en_US
dc.identifier.urihttp://hdl.handle.net/10722/150563-
dc.description.abstractThe existing designs for deep reinforced-concrete (RC) coupling beams with low shear-span ratios and conventionally reinforced shear stirrups tend to fail in a brittle way with limited ductility and deformability under reversed cyclic loading. This paper aims to develop a new retrofitting method for existing deep RC coupling beams that can enhance the deformability and energy dissipation while maintaining flexural stiffness, improving the beams' performance during an earthquake. Experiments were conducted to test four half-scale deep RC coupling beams with the same geometry and reinforcement layout but with different retrofitting schemes. One beam was tested without retrofitting to act as a control, whereas the others were retrofitted by a bolted steel plate with or without adding a buckling restraining device. This study reveals that the deformation and energy dissipation of the deep RC coupling beams retrofitted with restrained steel plates improved while the flexural stiffness did not increase. Moreover, by using laterally restrained steel plates, the specimens had better postpeak behavior, a more ductile failure mode, and better rotation deformability. © 2011 American Society of Civil Engineers.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.htmlen_US
dc.relation.ispartofJournal of Structural Engineeringen_US
dc.subjectBeamsen_US
dc.subjectBucklingen_US
dc.subjectCouplingen_US
dc.subjectPlatesen_US
dc.subjectRehabilitationen_US
dc.subjectReinforced Concreteen_US
dc.subjectSeismic Effectsen_US
dc.subjectSteel Platesen_US
dc.titleRetrofit of deep concrete coupling beams by a laterally restrained side plateen_US
dc.typeArticleen_US
dc.identifier.emailSu, RKL:klsu@hkucc.hku.hken_US
dc.identifier.authoritySu, RKL=rp00072en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)ST.1943-541X.0000276en_US
dc.identifier.scopuseid_2-s2.0-79955021488en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955021488&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume137en_US
dc.identifier.issue4en_US
dc.identifier.spage503en_US
dc.identifier.epage512en_US
dc.identifier.isiWOS:000289487800004-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridCheng, B=37096832400en_US
dc.identifier.scopusauthoridSu, RKL=7102627096en_US

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