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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: © 2012 |Pages: 15
ISBN13: 9781466609150|ISBN10: 146660915X|EISBN13: 9781466609167
DOI: 10.4018/978-1-4666-0915-0.ch005
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MLA

Madabhushi, S.P.G., and S.K. Haigh. "Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms." Geotechnical Applications for Earthquake Engineering: Research Advancements, edited by T.G. Sitharam, IGI Global, 2012, pp. 85-99. https://doi.org/10.4018/978-1-4666-0915-0.ch005

APA

Madabhushi, S. & Haigh, S. (2012). Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms. In T. Sitharam (Ed.), Geotechnical Applications for Earthquake Engineering: Research Advancements (pp. 85-99). IGI Global. https://doi.org/10.4018/978-1-4666-0915-0.ch005

Chicago

Madabhushi, S.P.G., and S.K. Haigh. "Effect of Superstructure Stiffness on Liquefaction-Induced Failure Mechanisms." In Geotechnical Applications for Earthquake Engineering: Research Advancements, edited by T.G. Sitharam, 85-99. Hershey, PA: IGI Global, 2012. https://doi.org/10.4018/978-1-4666-0915-0.ch005

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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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