Quantifying the effects of epoxy repair of reinforced concrete plastic hinges

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dc.contributor.author Marder, KJ en
dc.contributor.author Elwood, Kenneth en
dc.contributor.author Motter, CJ en
dc.contributor.author Clifton, George en
dc.date.accessioned 2020-06-15T23:08:49Z en
dc.date.issued 2020-03-01 en
dc.identifier.citation Bulletin of the New Zealand Society for Earthquake Engineering 53(1):37-51 01 Mar 2020 en
dc.identifier.issn 1174-9857 en
dc.identifier.uri http://hdl.handle.net/2292/51606 en
dc.description.abstract Modern reinforced concrete structures are typically designed to form plastic hinges during strong earthquakes. In post-earthquake situations, repair of moderate plastic hinging damage can be undertaken by filling the crack system with epoxy resin and reconstituting spalled cover concrete. This study uses available experimental test data, including three large-scale ductile beams tested by the authors, to investigate the effects of epoxy repair on the structural behaviour of plastic hinges, with a focus on beam elements. Factors that have been neglected in past studies, including the effects of residual deformations at the time of repair, are given special attention. It is found that epoxy-repaired plastic hinges can exhibit different behaviour from identical undamaged components in terms of stiffness, strength, deformation capacity, and axial elongation. Potential explanations for the observed differences in behaviour are given, and recommendations are made for how these differences can be quantified in order to relate the expected response of an epoxy-repaired plastic hinge to the response that would be calculated for an identical undamaged component. en
dc.language English en
dc.publisher New Zealand National Society for Earthquake Engineering en
dc.relation.ispartofseries Bulletin of the New Zealand Society for Earthquake Engineering en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://bulletin.nzsee.org.nz/index.php/bnzsee/about/submissions#authorGuidelines en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.subject Science & Technology en
dc.subject Technology en
dc.subject Engineering, Geological en
dc.subject Engineering en
dc.subject REHABILITATION en
dc.subject BUILDINGS en
dc.subject BEHAVIOR en
dc.subject STEEL en
dc.title Quantifying the effects of epoxy repair of reinforced concrete plastic hinges en
dc.type Journal Article en
dc.identifier.doi 10.5459/bnzsee.53.1.37-51 en
pubs.issue 1 en
pubs.begin-page 37 en
pubs.volume 53 en
dc.rights.holder Copyright: The author en
pubs.author-url https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/1162/1129 en
pubs.end-page 51 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 802832 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
dc.identifier.eissn 2324-1543 en
pubs.record-created-at-source-date 2020-06-19 en

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