碳纖維加固混凝土梁的非線性有限元數(shù)值模擬分析.pdf

1、武漢理工大學碩士學位論文碳纖維加固混凝土梁的非線性有限元數(shù)值模擬分析姓名：鄧春申請學位級別：碩士專業(yè)：結構工程指導教師：盧哲安20070501Asanewandhightechniqueconstructionreinforcementmethodforreinforcedconcretcstructure，Carbonfiberreinforcedplastic(CFRP)hasmanyadvantagessuchashighrese

2、archvalueandpopularizingvalueitcanbringhllgesocialandeconomybenefitTheexistingreinforcedconcretestructures鋤bestrengthenedbyadheringalrbonfiberreinforcedplastictotheconcretesurfacetoireprovetheirmechanicalperformancesThea

3、dvantagesofCFRPsuchaslightweight，noncorrosive，hightensilestrengthandeasyconstructionmakeitwidelyusedinstrengtheningfieldThematurationofFiniteElementCalculationTheoryprovidesacomputingtooItothereinforcementmethodThefinite

4、elementmethod(FEM)cansimulatetheNonLinearFuURangeAnalysisthebehaviorofbeamsfromlineartononlinearresponsesanduptofailure。itcansaveIotaofhumanresourceandmaterialFirstlythispapersummarizesthedomesticandinternationalcurrentr

5、esearchsituationandresultsofCFRPreinforcingtheconcretestructureatpresentandsummarizesthematerialperformanceofFRPsystemicallyThenfromthestrain—stressrelationshipofRCmaterials，theFailureCriteriaFailureSurfaceandvariousFail

6、ureModelofconcretearediscussedrespectivelySecondlyallelementtypesneededinNon1inerFilIiteElementAnalysisD唧iA)ofRCbeamstructureandcarbonclothinANSYSarestudiedSimulationofRCbeamandreinforeedconcretestructureisconductedinthe

7、ANSYSfakindofFEAsoftware)，andtheanalysisandstudyofreinforcedconcretebeamsstrengthenedwithCFRPunderthedifferentgluingnumbersaredoneThcload—displacementcurvestheultimateloadingofRCbeamandthedeformationarepresentedandcompar

8、edtotheexperimentalresultsDeviationreasonsareanalyzedandsuggestionsaregivenThenumericresultsarecomparedwitlIexperimentaldatawhichshowsthemodelingmethodiSavailableandtheoutcomeiSreliableItc卸beconcludedtha“a艱Preinforcingco