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1、硕士学位论文AbstractThebehaviorofreinforcedconcrete(RC)deepbeamsisdifferentfromshallowbeamsandthesituationbecomesmorecomplexsincethepresenceofwebopenings.Allcodespresentedareshortofexplainingtheexactbehaviorofdeepbeamsandthescopeofapplication.However,nocodeprovisionexistsforthedeepbeamswith
2、openingsandtherearefewstudiesonthenonlinearanalysisofthem.Inthisthesis,nonlinearfiniteelementanalysismethodisusedtosimulateRCdeepbeamswithopeningsandresearchthedesignofthem.Andtheprimaryresultsareasfollows.Basedonthesuccessfulvalidationoftheabilityoftheselectednonlinearfiniteelementmo
3、del,aseriesofRCdeepbeamswithopenings,areanalyzed,andthedifferencesbetweensimulationresultsandthetestones,areexplained.Thestraindistributionofthestudieddeepbeamatfailure,isextractedandprovednonlinear,soasthestressdistribution.Itfindsoutthatthestressdistributionskeepacorrespondingrelati
4、onshipwiththestrut-and-tiemodelsfromthegeneticevolutionarystructuraloptimization(GESO)algorithm,forthesamedeepbeams.Afteragroupofsimulationcomparisontothreedeepbeams,oneofwhicharedesignedbyelasticstressgraphicalmethodinthisthesisandtheothersarestudiedtestsdesignedbyinternalforcesmetho
5、dandstrut-and-tiemodel(STM)methodrespectively,thelastmethodisprovedmostoptimizedamongthepresentdesignmethods,bycomparativeanalysesofmechanicalproperties,suchasloadingcapacity,structureductility,stressfieldandsoon.Onthebasisofdistributionsandvariationsofnonlinearstressforthedeepbeamswi
6、thopenings,anewnonlineardesignmethod,generallyapplyingtobothdeepbeamswithdoubleorpartialopenings,ispresentedandmatchesthenonlinearpropertiesofdeepbeams.What’smore,itisprovedmorereasonableandmoreeconomicalandeffectivethantheothermethodsintermsofdesigntheoryanddesignresultsrespectively.
7、Undoubtedly,itprovidesausefulreferenceforthedesignofdeepbeamwithopenings.Aparametricstudyissystematicallyconductedtoinvestigatebehavioursofdeepbeamsvariouswebopeningshapesorreinforcementlayoutsrespectively.Theimportanteffectsofthetwomainfactorsareevaluatedafterafurtherunderstandingoft
8、hestr
