RESPONSE OF FOUNDATIONS SUBJECTED TO VERTICAL DYNAMIC LOADING
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Abstract
Design of machine foundations that are subject to dynamic loading require
that their amplified displacement is within certain limit so that such displacement
doesn’t impede the operation of the machine they are supporting. For the design of
such foundations, several methods are available that are based on a mathematical
solution of the differential equation that represents dynamic loads on an elastic half
space. When the soil conditions are not uniform, the response cannot be predicted
accurately by these methods and hence numerical methods should be used to analyze
the problem. This research presents a numerical solution to a foundation subject to
dynamic loading considering: 1) the effect of soil layering on the dynamic response.
Specifically, a footing rests on a finite soil layer over an elastic half space and 2) the
effect of the depth of embedment of a foundation in a homogenous elastic half space
on its dynamic response