Numerical modelling and testing of concrete walls with minimum vertical reinforcement

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dc.contributor.author Lu, Yiqiu en
dc.contributor.author Henry, Richard en
dc.contributor.author Ma, Tsun Ming Quincy en
dc.coverage.spatial Auckland en
dc.date.accessioned 2014-05-08T23:53:37Z en
dc.date.issued 2014-03-21 en
dc.identifier.citation 2014 NZSEE Annual Conference, Auckland, 21 Mar 2014 - 23 Mar 2014. Proceedings of the 2014 NZSEE Annual Conference. en
dc.identifier.uri http://hdl.handle.net/2292/22077 en
dc.description.abstract During the 2010/2011 Canterbury earthquakes, several lightly reinforced concrete (RC) walls in multi-storey buildings formed a limited number of cracks at the wall base and was found with fractured vertical reinforcements. This unexpected behaviour raises a question regarding whether RC walls designed according to current minimum vertical reinforcement requirements can exhibit sufficient ductility during earthquakes. A detailed experimental investigation is currently underway to verify the seismic performance of RC walls with current code specified minimum vertical reinforcement. A test setup has been developed to subject the lower portion of a RC wall specimen to loading that is representative of a multi-storey building. Prior to the experimental tests, a series of numerical analyses were conducted to predict the response of the test walls, and for calibration, a lightly RC wall that was damaged during the Canterbury Earthquakes. The numerical analysis successfully replicated the observed failure mode of the lightly RC wall. Push-over analysis results also indicated that the test walls designed in accordance with NZS 3101:2006 minimum vertical reinforcement requirements may be susceptible to limited flexural cracking and premature reinforcement fracture. Furthermore, the drift capacity of RC walls with minimum vertical reinforcement improved as the aspect ratio or axial load ratio was increased. en
dc.relation.ispartof 2014 NZSEE Annual Conference en
dc.relation.ispartofseries Proceedings of the 2014 NZSEE Annual Conference 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.title Numerical modelling and testing of concrete walls with minimum vertical reinforcement en
dc.type Conference Item en
dc.description.version VoR - Version of Record en
pubs.author-url http://db.nzsee.org.nz/2014/Orals.htm en
pubs.finish-date 2014-03-23 en
pubs.start-date 2014-03-21 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Proceedings en
pubs.elements-id 430794 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
pubs.record-created-at-source-date 2014-03-24 en


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