4'3 SoilStructure Interaction

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4.3 Soil-Structure Interaction

• Piles graving soil among them move as a single
  upright beam.

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What are kinematic inertia interactions?
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Kinematic Interaction
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Important Parameter

• Dimension of length

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What is Active pile length?
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depends on
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allows simple description of kinematic
interaction
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Wave radiation from a foundation
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For static loading
Spring!

• k depends on how soil rod spreads its
  crossection

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For dynamic loading
Damper!

• F?µ, A, v, 1/V

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Categorize wave fronts

• Plane and spherical waves

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Konagais seal

• The letter in the middle is missing!

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Rigorous solution of contact pressure distribution

• JSCE Journal Vol.374/I-6, 1996

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K and C values for a mat foundation
A
B

• Ka gt Kb
• Ca Cb

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Simulation of SSI effect
On a Shake Table