Dynamic stiffness of strip footings on irregular soil stratum

Chen, Huei-Tsyr

doi:10.1080/02533839.1994.9677601

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…However, it is usually not practical to employ such mesh grids in engineering applications where complex geometries have to be considered. Chen (1994), for example, used eight-node quadrilateral finite elements in the irregular region and, in order to guarantee the linear variation of displacement with respect to depth at the lateral boundaries, the author employed seven-node quadrilateral finite elements, which have only two nodes at the interface of the irregular and regular regions. Recently, Jones and Hunt (2011) used a stepwise fashion technique to approximate the soil layer interface inclination.…”

Section: Methods Of Analysismentioning

confidence: 99%

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Modelling ground vibrations induced by harmonic loads

Hamdan

Laghrouche

Connolly

et al. 2016

Proceedings of the Institution of Civil Engineers - Geotechnica

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2 3 4A finite-element model combining the frequency domain thin-layer method with paraxial boundary conditions to simulate the semi-infinite extent of a soil medium is presented in this paper. The combined numerical model is used to deal with harmonic vibrations of surface rigid foundations on non-horizontal soil profiles. The model can deal with soil media over rigid bedrock or significant depths of half-space. Structured finite elements are used to mesh simple geometry soil domains, whereas unstructured triangular mesh grids are employed to deal with complex geometry problems. Dynamic responses of homogeneous as well as layered soil profiles are simulated and validated against analytical and approximate solutions. Finally, the model is used to deal with surface ground vibration reduction, in which it is first validated against published results and then followed by an example involving a bridge.

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Section: Methods Of Analysismentioning

confidence: 99%

“…Chen (1994) simulated the effect of an inclined rigid base and inclined soil layers on the dynamic behaviour of surface foundations. The model consisted of three layers with the same angle of inclination.…”

Section: 2mentioning

confidence: 99%