IMPEDANCE FUNCTIONS OF ADJACENT STRIP FOOTINGS

Abstract eng:
The interaction between two adjacent strip footings resting on an elastic isotropic half-space is studied. The finite element method is used in order to investigate the response of the footings under vertical, lateral and rocking loading. The accuracy of the finite element model is verified by a comparison study with the rigorous results from the boundary element method concerning a single strip footing. Impedance functions are presented over a wide range of frequencies for typical values of the distance ratio S/L, where S is the distance between the footings and L is the width of each footing. The condition under which the interaction between adjacent strip footings should be taken into consideration is further discussed.

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