考慮樁-土-結(jié)構(gòu)相互作用的結(jié)構(gòu)動(dòng)力數(shù)值分析研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文考慮樁土結(jié)構(gòu)相互作用的結(jié)構(gòu)動(dòng)力數(shù)值分析研究姓名：夏雪嬌申請學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：黃承逵20080601考慮樁結(jié)榆相互作用的結(jié)構(gòu)動(dòng)力數(shù)值分櫥研究NumericalAnalysisofPileSoil—StnlctllreInteraction‘inStructuralDynamicnAbstractPilefoundations嬲amatureapproachiswidelyusedinconstr

2、uctionprojectsinvarious纛eldsThecodeforseismicdesignofpileonlymakessomedetailsofseismicdesignbutlackssystematizationandpertinenceDatashowthatintheearthquakethereisahighlydynamicinteractionbetweenthepilefounda蛞onandsoilTll

3、iSpaperstudysthesubjectofnumericalmodelingofpilesoilsuperstructuredynamicinteractionunderseistoicloaditisacertainacademicsignificanceandvalueofprojectsSeveralCOlIllTIoneonstitutivemodelsareintroducedinthearticle，DruckerP

4、ragermodelisrecommendedtosimulatethematerialnonlinearityofsoilAdvantagesanddisadvantagesofcommoninterfaceelementsaleanalyzedinthepaper，itisrecommendedthatGoodmancontactelementsimulatespilesoilinterfaceTakingtheanalysismo

5、delsof3x3grouppilefoundationsunderhorizontalseismicloadasastudytargetdynamicinteractioninthepile—soilstructureisanalyzedbyusingthreedimensionalelasticplasficfiniteelementmethodinANSYSsoftwareSeismicwaveandsideboundaryale

6、simulatedbytheELCentroseismicwaveandelasticdampingsystemboundaryrespectivelyBycomparisonwithcomerpile，borderpileandmiddlepileofthedistributionoftheshearingstressamplitudealongthe譙le，SOllleconclusionsaledrawnasbelow：thedi

7、stributionofshearstressamplitudealongthepileisinverse—triangle，andthemaximumvalueatcomercolumn，thelessvalueatbordercolumn。and也ominilnunlvalueatmid。column珊lenpilespacingvaryshearstressdosenotchangeW1lilePilesideinerease)s

8、hearstressdecline011thetopofpile，anddecreaseslowlybypiledepthincreasingForinstance，a7floorsRCframestructure，thedynamiccharacteristicsofstructureandfoundationinteractioniscalculatedandcomparedwiththesubstructuremethodandi

9、ntegralfiniteelementmethodConsideringthepilesoilinteractionsystemofthecycleislargerandthestructureoftheinternalforcesreduces10％20％Underseismicexcitationsoftandhardsoftinterfacemaybecomethemostimportantcontrolledsection勰t

10、hetopofpileUnderthepilesoilinteraction，throughthecomparisonandtheanalysisofthelinearandnonlinearbehaviorofsoilmaterialmodel，fixedboundaryandelasticdampingboundaryofsideboundarytheconclusionsshowasbelow：consideringtheimpa

11、ctofnonlinear，systemofthecycleislargerlittleeffectoffloorleveldisplacement，thehorizontaldisplacementonpilesislargercolumninternalforce，issmallerpileinternalforceislargeratthepeakInelasticdampingboundaryofsideboundarysyst