In this paper, an interface three-dimensional beam element is introduced for the analysis of framed structures which interact with an elastic medium. The formulations of the element are based on the assumption that the elastic medium can be represented by a two-parameter model of the Winkler and the shear type (Pasternak model). It is assumed, in general, that the properties of the elastic medium can be defined in any coordinate directions which may be different from the member coordinate directions. In the element formulation, the effects of shear deformations and a constant axial force of the beam are taken into account. The stiffness matrices of the beam and the elastic medium are explicitly derived and presented. Numerical examples are provided to demonstrate the element introduced.
Interface beam element for the analysis of soil-structure interactions and pipelines
International Journal of Offshore and Polar Engineering ; 9 , 1 ; 22-29
1999
8 Seiten, 16 Quellen
Aufsatz (Zeitschrift)
Englisch
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