A method for nonlinear dynamic response analysis of semi-infinite foundation soil

Lee, C.K.; Shiojiri, Hiroo; Hanada, K.; Nakagawa, Tomoyasu-Taguti

doi:10.1016/j.soildyn.2004.11.034

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Although the behavior of the structure is now considered non-linear, that of the environment will still be assumed linear (possibly using equivalent linear approaches [72,73]). Since non-linear dynamic solvers are now widely available [47], the key issue addressed here is the influence of a linear dynamic model of the environment within a time marching scheme.…”

Section: Time-domain Formulations For Non-linear Structuresmentioning

confidence: 99%

Dynamics of structures coupled with elastic media—A review of numerical models and methods

Clouteau

Cottereau

Lombaert

2013

Journal of Sound and Vibration

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This paper reviews issues and developments in the field of structure-environment interaction problems, in which the environment is an elastic body, possibly unbounded. It covers in particular the fields of soil-structure interaction, ground-borne noise and vibration emitted by transportation systems and wave diffraction by obstacles in an elastic medium. The general setting for a linear bounded structure coupled to an unbounded linear environment through a bounded interface is first recalled, and the domain decomposition technique classically used for its description is put up. Extensions for the cases of non-linear structure and uncertain environment are then discussed. Finally, the ongoing research in the fields of unbounded interface, moving interface, and multiple interfaces are reviewed and summarized.

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Section: Time-domain Formulations For Non-linear Structuresmentioning

confidence: 99%

Dynamics of structures coupled with elastic media—A review of numerical models and methods

Clouteau

Cottereau

Lombaert

2013

Journal of Sound and Vibration

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Dynamic Responses of Layered Viscoelastic Half-Medium with Twin Tunnel Under Harmonic Load

Yüksel,

Akbaş

2024

J. Vib. Eng. Technol.

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Purpose This paper presents dynamic analysis of layered viscoelastic half medium which includes twin rectangular tunnel under harmonic load. Viscoelastic half medium is considered and modelled with using Kelvin–Voigt viscoelastic model and two dimensional (2-D) continua. Methods The considered problem is solved by using finite element method. The energy expressions of the system are obtained and equation of motion are obtained by using Lagrange procedure. Infinite region far from twin tunnel is modelled by using infinite elements with 8 nodes and finite region is modelled by using 16 nodes finite elements. The dynamic equations for finite and infinite elements are solved by using Newmark-Beta method in time domain. Finite and infinite element models with different layers and twin tunnel are generated and numerical solutions are obtained by using an algorithm by authors. Results In order to achieve verify the used models and methods, some special results are obtained and compared with results from a finite element software. In numerical studies, effects of location of twin tunnel on dynamical responses of the system under harmonic load are obtained in figures and discussed in detail. Dynamic tunnel-medium interaction is discussed in the obtained results. Conclusions The numerical results show that tunnel location plays important role on the dynamic responses of half medium and dynamic responses change significantly with tunnel-medium interaction. In field near to the tunnel, the dynamic responses are more affected. Important practical implication is that computational cost for this kind of problems could be reduced, more realistic results could be obtained and all boundary conditions could be considered by used model with infinite elements. The used model and method are very useful and practical for dynamic analysis of tunnel structures.

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Calculation methods of Structure–Soil–Structure Interaction (3SI) for embedded buildings: Application to NUPEC tests

Clouteau¹,

Broc

Devesa

et al. 2012

Soil Dynamics and Earthquake Engineering

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A method for nonlinear dynamic response analysis of semi-infinite foundation soil

Cited by 3 publications

References 2 publications

Dynamics of structures coupled with elastic media—A review of numerical models and methods

Dynamics of structures coupled with elastic media—A review of numerical models and methods

Dynamic Responses of Layered Viscoelastic Half-Medium with Twin Tunnel Under Harmonic Load

Calculation methods of Structure–Soil–Structure Interaction (3SI) for embedded buildings: Application to NUPEC tests

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