Equilibrium equations based on foundation types
The equilibrium equation(13) takes
different forms depending on the loading condition
as well as the foundation types. In the following three
different forms of the equilibrium equations are derived
for three different types of foundations (subgrade).
These three foundation models are (i) Winkler foundation
(ii) Pasternak foundation and (iii) Kerr foundation.
In all these three cases, external pressure, q is
applied over the surface of the slab. In case of concentrated
load, the equilibrium equations are valid, except at
the point of load application.
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