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Influence of Stone Columns on Seismic Response of Buildings Considering the Effects of Liquefaction

Influence of Stone Columns on Seismic Response of Buildings Considering the Effects of Liquefaction

Murugesan Sankara Narayanan, Joseph Antony Visuvasam, Sembulichampalayam Sennimalai Chandrasekaran
Copyright: © 2022 |Volume: 13 |Issue: 1 |Pages: 22
ISSN: 1947-8488|EISSN: 1947-8496|EISBN13: 9781683181453|DOI: 10.4018/ijgee.314222
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MLA

Narayanan, Murugesan Sankara, et al. "Influence of Stone Columns on Seismic Response of Buildings Considering the Effects of Liquefaction." IJGEE vol.13, no.1 2022: pp.1-22. http://doi.org/10.4018/ijgee.314222

APA

Narayanan, M. S., Visuvasam, J. A., & Chandrasekaran, S. S. (2022). Influence of Stone Columns on Seismic Response of Buildings Considering the Effects of Liquefaction. International Journal of Geotechnical Earthquake Engineering (IJGEE), 13(1), 1-22. http://doi.org/10.4018/ijgee.314222

Chicago

Narayanan, Murugesan Sankara, Joseph Antony Visuvasam, and Sembulichampalayam Sennimalai Chandrasekaran. "Influence of Stone Columns on Seismic Response of Buildings Considering the Effects of Liquefaction," International Journal of Geotechnical Earthquake Engineering (IJGEE) 13, no.1: 1-22. http://doi.org/10.4018/ijgee.314222

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Abstract

In this paper, the behaviour of a soil-foundation system supported on a stone column-reinforced liquefiable soil strata is investigated through finite element analysis. The numerical analyses are performed on a five story reinforced concrete moment resisting building supported on a raft foundation. The influence of stone column slenderness ratio on liquefaction mitigation is studied by varying the length of stone columns at a constant area replacement ratio. The results are obtained based on the excess pore pressure, free-field soil settlement, foundation settlement, acceleration response, superstructure's inter-story drift, and lateral story displacement for each ground motion. The results showed that the liquefaction of free-field soil had a major impact on the foundation settlement and building lateral deformation. With the inclusion of stone columns, excess pore pressure ratio in the free-field region reduced considerably, which had immediate effects on the building's lateral deformation.

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