筒型基礎(chǔ)動靜荷載下承載力研究.pdf

1、天津大學(xué)碩士學(xué)位論文筒型基礎(chǔ)動靜荷載下承載力研究姓名：樂叢歡申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：丁紅巖20061201ABSTRACTBucketfoundationisanewtypeoffoundationforoffshoreplatformComparingwiththeotherpilefoundationandgravityfoundationbucketfoundationhassomeadvantages，such

2、aScosteffectiveness，simplicityofinstallationanditsreusingwhichmakesithavewide玲application。蛩接basicpreconditionofbucketfoundationplatformapplicationisthatitcanbepenetratedintothetargetduringsetup，Canstandstablyduringworkan

3、dcanbepulledoutduringremovalOneofthecriticalissuesinthedesignofthebucketfoundationistodeterminetheultimatebearingcapacity；howeverthecalculationofbucketfoundationbearingcapacityisfarfromtheengineeringpractice。強(qiáng)eproblemofb

4、earingcapacityisvirtuallytheproblemofinteractionbetweenbucketfoundationandthesoil。Tosolvetheproblem，aimattheproblemofstabilityduringworkandtheupliftcapacityduringremoval，thedissertationanalyzestheverticalandhorizontalbea

5、ringcapacityofthebucketfoundationunderthestaticload，anddiscussesthecharacterofbearingunderthehorizontalcycledynamical10adThemainworksdonealeasfollows：1確esearchstatusofultimatebearingcapacityhasbeenreviewedandsummarized2霸

6、跫academiccomputationformulasoftheverticalandhorizontalbeatingcapacitywithdifferentfailuremechanismshavebeendiscussed3。嗣瓣verticalandhorizontalbearingcapacitiesunderthestaticloadhavebeenanalyzedbyABAQUS，whichisnumericalsim

7、ulationsoftwareoffimteelement，TheconstitutivemodelemployediSMolarCoulombplasticitywithlinearelasticityassumedwithintheyieldstrengthsurfaceandtakesthecontactinteractionbetween堍呔etfoundationandthesoilintoaccountByusingthef

8、initeelementmethoditistogettheresultsofultimatebe撕ngcapacityunderkindsofworksituation，tOanalyzetheinfluenceofsoilparameter豫echaracterofbearingunderthehorizontalcycledynamicalloadisdiscussedbYcomparingwi也thatunderthestati