Transcription of Topic 14 - Foundation Design - Memphis
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Foundation Design 14-1 Instructional Materials ComplementingFEMA 451, Design ExamplesFOUNDATION DESIGNP roportioning elements for:Transfer of seismic forcesStrength and stiffnessShallow and deep foundationsElastic and plastic analysisFoundation Design 14-2 Instructional Materials ComplementingFEMA 451, Design ExamplesLoad Path and Transfer to SoilSoil PressureForce on a pileEQ on unloaded pilePile supporting structureInertial forceUnmoving soilEQ Motiondeflectedshapesoilpressuredeflecte dshapedeflectedshapesoilpressuresoilpres sureFoundation Design 14-3 Instructional Materials ComplementingFEMA 451.
#4 spiral at 11 inch pitch (6) #5 #4 spiral at 7.5 inch pitch (6) #5 #4 spiral at 3.75 inch pitch 4" pile embedment Section A Section B Section C C B A 21'-0" 23'-0" 6'-4" •Site Class C •Larger amounts where moments and shears are high •Minimum amounts must extend beyond theoretical cutoff points •“Half” spiral for 3D
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