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Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms

Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms

S.P.G. Madabhushi, S.K. Haigh
Copyright: © 2010 |Volume: 1 |Issue: 1 |Pages: 18
ISSN: 1947-8488|EISSN: 1947-8496|ISSN: 1947-8488|EISBN13: 9781616929831|EISSN: 1947-8496|DOI: 10.4018/jgee.2010090805
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MLA

Madabhushi, S.P.G., and S.K. Haigh. "Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms." IJGEE vol.1, no.1 2010: pp.70-87. http://doi.org/10.4018/jgee.2010090805

APA

Madabhushi, S. & Haigh, S. (2010). Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms. International Journal of Geotechnical Earthquake Engineering (IJGEE), 1(1), 70-87. http://doi.org/10.4018/jgee.2010090805

Chicago

Madabhushi, S.P.G., and S.K. Haigh. "Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms," International Journal of Geotechnical Earthquake Engineering (IJGEE) 1, no.1: 70-87. http://doi.org/10.4018/jgee.2010090805

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Abstract

Soil liquefaction following strong earthquakes causes extensive damage to civil engineering structures. Foundations of buildings, bridges etc can suffer excessive rotation/settlement due to liquefaction. Many of the recent earthquakes bear testimony for such damage. In this article a hypothesis that “Superstructure stiffness can determine the type of liquefaction-induced failure mechanism suffered by the foundations” is proposed. As a rider to this hypothesis, it will be argued that liquefaction will cause failure of a foundation system in a mode of failure that offers least resistance. Evidence will be offered in terms of field observations during the 921 Ji-Ji earthquake in 1999 in Taiwan and Bhuj earthquake of 2001 in India. Dynamic centrifuge test data and finite element analyses results are presented to illustrate the traditional failure mechanisms.

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