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1、Soil-StructureInteractionUnderDynamicLoadingforBothShallowandDeepFoundationsM.K.YegianChrisL.MullenDepartmentofCivilandEnvironmentalEngineering,DepartmentofCivilEngineering,UniversityofNortheasternUniversity,Boston,MassachusettsMississippi,Oxford,MississippiC.Y.ChangGeorg
2、eMylonakisGeomatrixConsultants,Inc.DepartmentofCivilEngineering,CityUniversityofOakland,CaliforniaNewYork,NewYorkINTRODUCTIONarenotcasehistoriesinthesensethattheyprovidefieldmeasuredperformancedatathatdemonstratetheeffectTheimportanceofsoil-structureinteraction(SSI)ofsoil
3、-structureinteractionunderdynamicloads.TheunderdynamicloadswasrecognizedasearlyasintheexamplesdescribetheapplicationofSSIanalysisinthe1960sinthedesignofshallowfoundationsformachinesevaluationofthedynamicresponseofstructures.andmechanicalequipment.Subsequently,SSIanalysisr
4、eceivedsignificantattentionintheseismicsafetyAmin,Joshi,andBhatt.“StructureSoilStructureevaluationofnuclearpowerplants.Duringthe1970sandInteractionEffects:SeismicAnalysisofSafetyRelated1980smajoradvancementsweremadeindevelopingCollocatedConcreteStructures”.Theauthorsdescr
5、ibecomputercodesthatnowallow3-dimensionalSSIaninvestigationofthepotentialeffectsofstructure-soil-analysisoflarge,deeplyembeddedstructures.Duringthestructureinteraction(SSSI)attheSavannahRiverSiteofpastdecade,themajorthrustofSSIresearchhasbeentheU.S.DepartmentofEnergy.Thre
6、eadjacenttargetedtotheunderstandingofpile-supportedstructuresbuildingsweremodeledandanalyzedinthreetoseismicwaves.ThishasbeendrivenprimarilybythedimensionsusingthecomputerprogramsSASS1andincreasedconcernabouttheseismicvulnerabilityofABAQUES.Twoofthebuildings(Processandbri
7、dgesandbridgefoundations.Purification)wereverylargestructures.Thethirdbuilding(Stackbuilding)wasamuchsmallerstructure.ThissessionoftheconferenceprovidesanSSSIaswellasSSIoftheindividualbuildingswereopportunitytolearnoftherecentdevelopmentsintheperformedandthepeakaccelerati
8、ons,seismicloads,andfieldofsoil-structureinteractionunderseismicloads.Afloorspectrawerecomputeda