application of the finite element method to beam-column problems-1972

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1、LEHIGHUIVERSITYResidualStressesinThickWeldedPlatesAPPLICATIONSOFTHEFINITEELEMENTMETHODTOBEAM·COLUMNPROBLEMSFRITZENC1NEERINGi:Ar:JOR/TOr,'(UBRAR'fbyNegussieTebedgeSeptember,1972FritzLaboratoryReportNo.337.32APPLICATIONSOFTHEFINITEELEMENTMETHODTOBEAM-COLUMNPROBLEMSbyNegussieTebedgeADi

2、ssertationPresentedtotheGraduateCommitteeofLehighUniversityinCandidacyoftheDegreeofDoctorofPhilosophyinCivilEngineeringLehighUniversity1972CERTIFICATEOFAPPROVALApprovedandrecommendedforacceptanceasadissertationinpartialfulfillmentoftherequirementsforthedegreeofDoctorofPhilosophy.1(72

3、(Date)LambertTallProfessorinChargeAcceptedSpecialcommitteedirectingthedoctoralworkofMr.NegussieTebedgee.9J.~'(h/.GeorgeC.Drisco11,Jt.~--ProfessorLambertTalltJ(7·~-~ProfessorWai-FahChenProfessorRobertA.Lucasii<~dProfessorDavidA.VanHornExOfficioiiiACKNOWLEDGMENTSTheauthorisdeeplyindept

4、edtoProfessorLambertTall,ProfessorinChargeofthisdissertation,forhisguidanceandcon•tinuousencouragementinthepreparationofthisthesisandthrough•outtheauthor'sgraduatestudies.TheguidanceofProfessorsGeorgeC.Driscoll(Chairman),Wai-FahChen,RobertA.Lucas,andDavidA.VanHorn,membersofthespecial

5、committeedirectingtheauthor'sdoctoralwork,isgratefullyacknowledged.Sincereappreciationisexpressedtoalltheauthor'sassociatesinFritzLaboratory,inparticularSureshDesai,forfruitfuldiscussionsthroughoutthisinvestigation.Theinvestigationleadingtothisdissertationispartofaresearchproject"Res

6、idualStressesinThickWeldedPlates",whichisjointlysponsoredbytheNationalScienceFoundationandtheColumnResearchCouncil.Dr.L.TallandDr.W.F.Chenarethedirectorsoftheproject.TheauthorowesaspecialdebtofgratitudetotheAfrican•AmericanInstitutefortheirsupportduringthefirstyearofhisgraduatestudy.

7、AcknowledgmentsarealsoduetotheComputerCenteratLehighUniversitywhichprovidedfacilitiesforthecomputerwork.TheassistanceofShirleyMatlockintypingthemanuscriptandofJohnGeraandhisstaffforpreparingthedrawings,isgratefullyacknowl•edged.ivLISTOFTABLESPageTABLE1CRITICALLOADSOFCOLUMNSWITHDISTRI

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