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Nonlinear Dynamic Analysis of Partially Supported Beam-Columns on Nonlinear Elastic Foundation Including Shear Deformation Effect

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Book cover Computational Modelling and Advanced Simulations

Part of the book series: Computational Methods in Applied Sciences ((COMPUTMETHODS,volume 24))

Abstract

In this paper, a boundary element method is developed for the nonlinear dynamic analysis of beam-columns of arbitrary doubly symmetric simply or multiply connected constant cross section, partially supported on tensionless Winkler foundation, undergoing moderate large deflections under general boundary conditions, taking into account the effects of shear deformation and rotary inertia. The beam-column is subjected to the combined action of arbitrarily distributed or concentrated transverse loading and bending moments in both directions as well as to axial loading. To account for shear deformations, the concept of shear deformation coefficients is used. Five boundary value problems are formulated with respect to the transverse displacements, to the axial displacement and to two stress functions and solved using the Analog Equation Method, a BEM based method. Application of the boundary element technique yields a nonlinear coupled system of equations of motion. The solution of this system is accomplished iteratively by employing the average acceleration method in combination with the modified Newton Raphson method. The evaluation of the shear deformation coefficients is accomplished from the aforementioned stress functions using only boundary integration. The proposed model takes into account the coupling effects of bending and shear deformations along the member as well as the shear forces along the span induced by the applied axial loading. Numerical examples are worked out to illustrate the efficiency, wherever possible the accuracy and the range of applications of the developed method.

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Acknowledgements

The work of this paper was conducted from the “DARE” project, financially supported by a European Research Council (ERC) Advanced Grant under the “Ideas” Programme in Support of Frontier Research [Grant Agreement 228254].

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Authors and Affiliations

  1. School of Civil Engineering, National Technical University of Athens, Athens, Greece

    E.J. Sapountzakis & A.E. Kampitsis

Authors
  1. E.J. Sapountzakis
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  2. A.E. Kampitsis
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Correspondence to E.J. Sapountzakis .

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Editors and Affiliations

  1. in Bratislava, Department of Mechanics, Slovak University of Technology, Ilkovičova 3, Bratislava, 812 19, Slovakia

    Justín Murín

  2. AFA General Milan Rastislav Štefánik, Demänová 393, Liptovsky Mikulas, 031 19, Slovakia

    Vladimír Kompiš

  3. Department of Mechanics, Slovak Univ. of Technology in Bratislava, Ilkovičova 3, Bratislava, 812 19, Slovakia

    Vladimír Kutiš

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Sapountzakis, E., Kampitsis, A. (2011). Nonlinear Dynamic Analysis of Partially Supported Beam-Columns on Nonlinear Elastic Foundation Including Shear Deformation Effect. In: Murín, J., Kompiš, V., Kutiš, V. (eds) Computational Modelling and Advanced Simulations. Computational Methods in Applied Sciences, vol 24. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0317-9_1

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  • DOI: https://doi.org/10.1007/978-94-007-0317-9_1

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  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-007-0316-2

  • Online ISBN: 978-94-007-0317-9

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