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U0 of the foundation.
{u}={1, 1,……,1}T U0 (7) Eq.(7) is rewritten as:
{u}={R} U0 (8) Where,
{R}={1, 1,……,1}T (9) {u} = {R} U0 (8) {R} = {1, 1,……,1}T (9) {R} is called Restraint Vector, which relates the
representative displacement U0 of the foundation to
the displacement vector {u} at the interface.
In multidegrees of freedom cases, the restraint
vector {R} becomes Restraint Matrix [R]. The applied force P coincides with combined contact earth
pressure (sum of contact earthpressure...
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 Summer '14
 DrGRD
 Surface Foundation, Dynamic Impedance Function

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