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Unformatted text preview: he massless rigid foundation.
The dynamic Impedance Function equals to
the inverse of the response of the massless rigid
foundation when unit force vector is applied.
The Foundation Input Motion equals to the response of
the massless rigid foundation
when the earthquake disturbance is applied.
(8) The natural frequency of the building is different from
the fixed base natural frequency. (9) Larger damping factor is given by SSI.
The damping factor of the coupling system is
much larger than that of building itself. (10) This tendencies of (8) and (9) becomes
more remarkable in lower rise or stiffer building
on weaker soil. Dynamic Soil Structure Interaction END
Kenji MIURA, Dr. Eng.
Graduate School of Engineering
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- Summer '14