碳纖維布加固鋼筋混凝土梁抗彎性能研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文碳纖維布加固鋼筋混凝土梁抗彎性能研究姓名：周愛軍申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：黃承逵孫學(xué)艷20060618周愛軍：碳纖維布加固鋼筋混凝土粱抗彎性能試驗研究Research0nTheFIexuralPerformanceofReinforeedConereteBeamStrengthenedwithCFRPAbsttactWiththedevelopmentofnationaleconomyand

2、fastincreaseof鋤cflowvehicleloadcapacityarebecominghigherandhigher，requiringhigherbearingcapacityofbridgesAmongexistingbridges，partofthemcallnolongermeetthedemandfortrafficdevelopmentduetoinferiordesigninthepastyearsorold

3、andagedstructures，endangeringnormaloperationofthebridgesTherefore，wehavealotofexistingbridgesthatneedtobereinforced0rtransformedinou$countryInsuchengineeringbackground，itisurgentforreeeareherstodevelopasimplefasLsafe，rel

4、iable，lowco鞏andapplicablemethodforreinfomingandtransformingoldstructuresAsanewtypecompoundbuildingmaterial，CarbonFiberPolymer(CFRP)，whichhasanomstandingcombinationofproperties，hasbeenwidelyusedinthefieldsofrepairingandst

5、rengtheningRCstructuresduetoitsadvantagesinllightensilestrengthiighiweight，goodanticorrosionperformance，andsimplicityinconstructionCombiningwiththeShandongProvinceTransportationDepartment’skeysubject‘ResearchandApplicati

6、onofCarbonFiberReinforcedPolymer(CFRP)forStren#aeulngandRepairingtheExistingBridges”thissubjectismainlyconcernedwi也theexperimentalstudyonstrengtheningRCbeamswithCFRPsheets111emainpartsofmyworkaleasfollows：1Thispaperdeals

7、withmanyexperimentalresultsathomeofCFIosheetsasflexuralstrengtheningsimplysupportedRCbeamsunderconcentratedloadsneinfluencefactorswhichincludetlaecontentsofratioofreinforcement，numberoflayersofcarbonfiber，concretegrade，F(xiàn)

8、RPsheets’widthandpre—crackingload2Basedonthebasictheo巧derivedfromplaneassumptionforevaluatingtheultimateflexuralcapacityofRCbeams，suggestedtheCodeforDesignofHighwayReinforcedandPrestressedConcreteBridgesandCulverts(JTGD6

9、22004)，formatisproposedtopredictthecapacityofavailablebeamsstrengthenedinflexurewi血CFRPResultsshowthattheproposeddesignapproachisconservativeandacceptabletopracticalbridgeprojectsKeyWords：CFRPsheets；Bridgestrengthening；R