The objective of this study was to investigate the relation between the responses of a layered medium and simplified systems such as the beam on elastic foundation and the plate on elastic foundation subjected to moving loads with either a constant amplitude or a harmonic amplitude variation and the possibility of using the simplified systems to predict the behavior of a layered medium. The deflected shapes and the variations of the peak displacements with the velocity and the load frequency were compared with the models and they showed similar characteristics. It was possible to obtain formulae to compute the equivalent foundation stiffness and beam width so that the three models provide the same peak displacement. It was not possible, however, to reproduce exactly the deflected shapes.
Comparison of dynamic responses of simple and rigorous models of layered media to moving loads
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 2 , 3 ; 243-252
1998-09-01
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Dynamic response of layered media to moving constant and harmonic loads
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