Effects of interface material on the performance of free rocking blocks

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dc.contributor.author ElGawady, MA en
dc.contributor.author Ma, Tsun Ming Quincy en
dc.contributor.author Butterworth, John en
dc.contributor.author Ingham, Jason en
dc.date.accessioned 2012-03-02T01:07:04Z en
dc.date.issued 2010 en
dc.identifier.citation EARTHQ ENG STRUCT D 40(4):375-392 Apr 2011 en
dc.identifier.issn 0098-8847 en
dc.identifier.uri http://hdl.handle.net/2292/12611 en
dc.description.abstract This paper presents the results of an experimental investigation on the rocking behavior of rigid blocks. Two types of test specimens have been tested, namely M and C types. Nine blocks of the M type and two blocks of the C type with different aspect ratios were tested with varying initial rotational amplitudes and with different materials at the contact interface, namely concrete, timber, steel, and rubber. The results showed that the interface material has significant influence on the free rocking performance of the blocks. Blocks tested on rubber had the fastest energy dissipation followed by concrete and timber bases, respectively. Analysis of the test results has shown that the energy dissipation in the case of tests on a rubber base is a continuous mechanism whereas in the case of tests on rigid bases, i.e. timber and concrete, energy dissipation is a discrete function. Finally, the rocking characteristics of the blocks were calculated using piecewise equations of motion and numerical analysis. It was possible to predict the correct free rocking amplitude response when a reliable value for the coefficient of restitution was used. en
dc.publisher John Wiley & Sons, Ltd. en
dc.relation.ispartofseries Earthquake Engineering and Structural Dynamics 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 http://www.sherpa.ac.uk/romeo/issn/0098-8847/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject damping en
dc.subject rocking en
dc.subject rubber en
dc.subject interface material en
dc.subject nonlinear dynamic en
dc.title Effects of interface material on the performance of free rocking blocks en
dc.type Journal Article en
dc.identifier.doi 10.1002/eqe.1025 en
pubs.issue 4 en
pubs.begin-page 375 en
pubs.volume 40 en
dc.rights.holder Copyright: John Wiley & Sons, Ltd. en
pubs.end-page 392 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 163715 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
pubs.record-created-at-source-date 2010-10-18 en

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