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1、分類號：U44，U45諼專太津碩士學(xué)位論文預(yù)應(yīng)力鋼一混凝土組合梁力學(xué)性能研究導(dǎo)師姓名職稱申請學(xué)位級別論文提交日期學(xué)位授予單位顏全哲郝憲武教授答辯委員會主席學(xué)位論文評閱人胡兆同教授黃安錄副教授馬毓泉高工AbstractRecently,simplysupportedprestressedsteel-concretecompositebeamshavebeenwidelyusedinfreewayandurbanbridgeconstruction，dueingtothesteel’Stensilestrengthandtheconcrete’Scom
2、pressivestrengtharebeenfullyexerted，havingtheadvantageoflegerityandartisticofframework，biggerspan，convenienceandfasterinconstruction，andlittleinfluenceontra伍C．However,domesticandintemationaltheoreticalresearchesarenotenoughonaspectofprestressedsteel-concretecompositestructurea
3、ndtherearenotrespectiveprovisionsintheChinesedesignspecificationstillnow,SOtheseaspectshaveagreatinfluenceontheapplicationofthisreasonablestructuresystem．Basedoncomprehensivecollectionoftheexistingresearchdocumentshomeandabroad，thispaperexpoundstheworkingprincipleofprestressed
4、steel·concretecompositebeamsduringconstructionandoperation，discussestheinfluencingfactorsofmechanicalpropertiesofprestressedsteel-concretecompositebeams，describesseveraldesignmethodsofprestressedsteel-concretecompositebeamsindetail，summarizesthepracticalcalculatingformulaofpre
5、stressedsteel-concretecompositebeamsinvariousfunctionalstates，thispapercailprovideasignificativereferenceforthedesignandconstructionofthesamekindofbridge．Forthesakeofanalyzingthemechanicalpropertiesofprestressedsteel—concretecompositebeams，thepapercombinestheloadtestresearchof
6、XingguanglinkingrouteoverpassinInnerMongolia，testingthedataofstressanddeformationunderdesignloads；uses3DFiniteElementMethod(FEM)tocarrythroughnumericalsimulationtoloadtest，theresultsofthetheoreticalanalysisareagreedwell、析t11theexperimentaldata．Throughtheloadtestandfiniteelemen
7、tnumericalsimulationanalysis，thepaperprovidesbasesformorestudiesofprestressedsteel·concretecompositebeams，providestheoreticbasisandtechnicalguideforoverallextensionandapplicationofprestressedsteel—concretecompositebeams，andthisdissertationhasthecertaintheoreticalmeaningandprac
8、ticalvalue．Keywords：externalprestressingforce，steel—concretec
