Out-of-plane seismic performance of unreinforced masonry walls retrofitted using post-tensioning

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dc.contributor.author Ismail, N en
dc.contributor.author Schultz, AE en
dc.contributor.author Ingham, Jason en
dc.contributor.editor Roman, HR en
dc.contributor.editor Parsekian, GA en
dc.coverage.spatial Florianópolis, Brazil en
dc.date.accessioned 2012-06-25T20:32:00Z en
dc.date.issued 2012 en
dc.identifier.citation 15th International Brick and Block Masonry Conference, Florianópolis, Brazil, 03 Jun 2012 - 06 Jun 2012. Editors: Roman HR, Parsekian GA. Proceedings of the 15th International Brick and Block Masonry Conference. 2012 en
dc.identifier.isbn 978-85-63273-10-9 en
dc.identifier.uri http://hdl.handle.net/2292/19121 en
dc.description.abstract The development of equations for a post-tensioning seismic retrofit design of URM walls is discussed and a summary of out-of-plane flexural testing is reported. A total of five (05) full scale unreinforced masonry (URM) walls, of which one was tested as-built and four were seismically retrofitted using post-tensioning, were structurally tested using an out-of-plane air bag rig. The out-of-plane loaded test walls had two different wall configurations that were representative of prevalent seismically deficient URM walls and were constructed using salvaged clay bricks and an ASTM type O mortar. Varying levels of post-tensioning were applied to the test walls using a single mechanically restrained sheathed and greased strand, inserted into a cavity at the centre of each test wall. Several aspects pertaining to the seismic behaviour of post-tensioned URM walls were investigated, including damage patterns, forcedisplacement behaviour, tendon stress variation, hysteretic energy dissipation, toughness, and initial stiffness. Finally, measured response was compared to calculated values and the proposed design equations were validated. en
dc.description.uri http://www.15ibmac.com/home/ en
dc.relation.ispartof 15th International Brick and Block Masonry Conference en
dc.relation.ispartofseries Proceedings of the 15th International Brick and Block Masonry 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.subject seismic en
dc.subject performance en
dc.subject masonry en
dc.subject retrofitting en
dc.subject post-tensioning en
dc.title Out-of-plane seismic performance of unreinforced masonry walls retrofitted using post-tensioning en
dc.type Conference Item en
dc.rights.holder Copyright: the author(s) en
pubs.author-url http://15ibmac.com/approved-papers/ en
pubs.finish-date 2012-06-06 en
pubs.publication-status Published en
pubs.start-date 2012-06-03 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Proceedings en
pubs.elements-id 357505 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
pubs.record-created-at-source-date 2012-06-22 en


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