Design Expression for the In-plane Shear Strength of Reinforced Concrete Masonry

Show simple item record Voon, Kok en Ingham, Jason en 2012-02-29T23:53:03Z en 2007 en
dc.identifier.citation Journal of Structural Engineering 133(5):706-713 2007 en
dc.identifier.issn 0733-9445 en
dc.identifier.uri en
dc.description.abstract Aspects relating to codification of the in-plane shear strength of concrete masonry walls when subjected to seismic loading are presented in this paper. Particular emphasis is placed on a model that is capable of representing the interaction between flexural ductility and masonry shear strength to account for the reduction in shear strength as ductility level increases. The simple method proposed here allows the strength enhancement provided by axial compression load to be separated from the masonry component of shear strength and is considered to result from strut action. In addition, minor modifications are made to facilitate adoption of the method in the updated version of the New Zealand masonry design standard, NZS 4230:2004. Prediction of shear strength from NZS 4230:2004 and alternative methods are compared with results from a wide range of masonry walls tests failing in shear. It was established that the shear equation in the former version of the New Zealand masonry standard (NZS 4230:1990) was overly conservative in its prediction of masonry shear strength. The current National Earthquake Hazards Reduction Program (NEHRP) shear expression was found to be commendable, but it does not address masonry shear strength within plastic hinge regions, therefore limiting its use when designing masonry structures in seismic regions. Finally, the new shear equation implemented in NZS 4230:2004 was found to provide significantly improved shear strength prediction with respect to its predecessor, with accuracy close to that resulted from NEHRP. en
dc.description.uri en
dc.publisher American Society of Civil Engineers en
dc.relation.ispartofseries Journal of Structural 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. Details obtained from en
dc.rights.uri en
dc.title Design Expression for the In-plane Shear Strength of Reinforced Concrete Masonry en
dc.type Journal Article en
dc.identifier.doi 10.1061/(ASCE)0733-9445(2007)133:5(706) en
pubs.issue 5 en
pubs.begin-page 706 en
pubs.volume 133 en
dc.rights.holder Copyright: American Society of Civil Engineers en
pubs.end-page 713 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 46844 en Engineering en Civil and Environmental Eng en
pubs.record-created-at-source-date 2010-09-01 en

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