Significance of Interface Nonlinearity on the Seismic Response of a Well-Pier System in Cohesionless Soil

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dc.contributor.author Mondal, Goutam
dc.contributor.author Jain, Sudhir Kumar
dc.contributor.author Prashant, Amit
dc.date.accessioned 2014-03-16T13:05:45Z
dc.date.available 2014-03-16T13:05:45Z
dc.date.issued 2012-08
dc.identifier.citation Mondal, Goutam; Prasant, Amit and Jain, Sudhir Kumar, “Significance of interface nonlinearity on the seismic response of a well-pier system in cohesionless soil”, Earthquake Spectra, DOI: 10.1193/1.4000074, vol. 28, no. 3, pp. 1117–1145, Aug. 2012. en_US
dc.identifier.issn 8755-2930
dc.identifier.uri http://dx.doi.org/10.1193/1.4000074
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/792
dc.description.abstract Interaction between a well foundation (caisson) and the surrounding soil during earthquake shaking involves complicated material and interface nonlinearities such as soil inelasticity, separation, sliding, and uplifting. It is often perceived that the interface nonlinearity has appreciable effects on the seismic response of the well foundation. This paper studies soil-well interface behavior during ground shaking and evaluates the significance of interface nonlinearity on the seismic response of the soil-well-pier (SWP) system. Seismic analysis of the soil-well-pier system was performed using the two-dimensional finite element model considering soil and interface nonlinearities, under both full- and partial-embedment conditions of the well foundation. Soil was assumed to be cohesionless and analyzed under both saturated undrained and dry conditions. Results of this model were compared with those of a model with perfectly-bonded interface. The design displacement and force resultants were found to be marginally overestimated and were on the conservative side in absence of nonlinear interface. en_US
dc.description.statementofresponsibility by Goutam Mondal, Amit Prashant, and Sudhir Kumar Jain
dc.format.extent vol. 28, no. 3, pp. 1117–1145
dc.language.iso en en_US
dc.publisher Earthquake Engineering Research Institute en_US
dc.subject Dry condition en_US
dc.subject Earthquake shaking en_US
dc.subject Finite element models en_US
dc.subject Ground-shaking en_US
dc.subject Interface behavior en_US
dc.subject Seismic analysis en_US
dc.subject Surrounding soils en_US
dc.title Significance of Interface Nonlinearity on the Seismic Response of a Well-Pier System in Cohesionless Soil en_US
dc.type Article en_US
dc.relation.journal Earthquake Spectra


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