Comparison of linear and non-linear, space frame-raft-soil interaction analyses, by using finite element method

H. M.Rajashekhar Swamy, Krishnamoorthy, D. L. Prabakhara, S. S. Bhavikatti

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The objective of the present study is to estimate the realistic displacements and force quantities in the structural members, accounting for their three dimensional behaviour and non-linear constitutive relations of soil. This demands usage of proper constitutive model for soil and its numerical model, which is validated experimentally. A program has been developed in the present work to compare soil-structure interaction analyses of a three dimensional frame resting on mat foundation for linear and non-linear constitutive relations of soil. For linear analysis initial tangent modulus is used. For non-linear analysis hypoelasticity model is adopted. This hypoelastic model, used, is validated for a plate load test. Results of non-linear analysis are compared with non-interactive analysis and linear analysis to establish its worthiness.

Original languageEnglish
Pages (from-to)187-233
Number of pages47
JournalInternational Journal of Structural Engineering
Volume4
Issue number3
DOIs
Publication statusPublished - 31-07-2013

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Nonlinear analysis
Soils
Finite element method
Soil structure interactions
Structural members
Constitutive models
Numerical models

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

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abstract = "The objective of the present study is to estimate the realistic displacements and force quantities in the structural members, accounting for their three dimensional behaviour and non-linear constitutive relations of soil. This demands usage of proper constitutive model for soil and its numerical model, which is validated experimentally. A program has been developed in the present work to compare soil-structure interaction analyses of a three dimensional frame resting on mat foundation for linear and non-linear constitutive relations of soil. For linear analysis initial tangent modulus is used. For non-linear analysis hypoelasticity model is adopted. This hypoelastic model, used, is validated for a plate load test. Results of non-linear analysis are compared with non-interactive analysis and linear analysis to establish its worthiness.",
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Comparison of linear and non-linear, space frame-raft-soil interaction analyses, by using finite element method. / Swamy, H. M.Rajashekhar; Krishnamoorthy; Prabakhara, D. L.; Bhavikatti, S. S.

In: International Journal of Structural Engineering, Vol. 4, No. 3, 31.07.2013, p. 187-233.

Research output: Contribution to journalArticle

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AU - Swamy, H. M.Rajashekhar

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AU - Bhavikatti, S. S.

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