纖維增強樹脂基（FRP）材料制備及其在加固工程中的應(yīng)用研究.pdf

1、東南大學碩士學位論文纖維增強樹脂基（FRP）材料制備及其在加固工程中的應(yīng)用研究姓名：陳春申請學位級別：碩士專業(yè)：材料學指導教師：錢春香郭宏定20000301AbstractFRPhasthecharacteristicsoflight—weighthighstrengthandcorrosionresistingInadditionitsmodulusofelasticityissimilartosteelSoitisagoodnews

2、trengtheningmaterialthatiswidelyappliedatabroadTheresearchisiuststartedinchinaandthepriceofcarbonfiberisveryhighA11thesefactorsIimittheapplicationofFRPinstrengtheningengineeringThepaperinvestigatesapplicationofFItPinstre

3、ngtheningengineeringandmanufacturingofhybridFRPfromcarbonfiberandglassfiberThepaperattempttopreparehighperformanceandlowpriceFRPThepaperpreparesFRPsheet(cloth)wiⅡlcarbonfiberglassfiberandhybridfiberindifferentpressureand

4、temperatureTheirpropertiesweretestedTheexperimentalresultsindicatedthatthemainfactort11ataffectsthetensilestrengthisthekindoffiberundertheconditionofcertainpressureandthecontentofresinAstothesystemofepoxyandpolyamideresi

5、n，thetemperatureofsolidificationisanotherirnportantfactorThetensilestrengthofFRPdescendswiththeincreaseoflayersThetensilestrengthandmodulusofelasticityofthehybridFRPdescendwiththeincreasethecontentofglassfiberAndthedesce

6、ntrangeofmoduluselasticityishigherthanthatoftensilestrengthThepaperinvestigatestheapplianceofFRPinstrengtheningengineeringinthreeaspectsFirstlyFRPisusedtostrengthenconcretebeamsandRCbeamstoimprovetheirflexuraistrengthSec

7、ondly，F(xiàn)RPisusedtoimprovestrengthenconcreteprismtoimprovecompressivestrengthThirdly，F(xiàn)RPisusedtoinhibitAARDifferentkindsofFRPsheetsareusedtostrengthenconcretebeamstoimproveflexuralstrengthTheexperimentalresultsindicatedtha

8、ttheperformanceofFRPandtheeffectiveadhesive1engtharemainfactorsDifferentfibershavedifierentperformartceCarbonfiberisthehighestinthreekindsoffibersandtheglassfiberislowestWiththeincreaseofeffectiveadhesivelength，thestreng

9、thisincreasedThestrengthenedconcretebeamshavethreefailureforms：(1)FRP蹦lure；(2)adhesionfailure；(3)shearfailure1hreekindsofFRPsheetsareusedtostrengthenRCbeamsTheincreaserangeofflexuralstrengthofL1T3is303％，L286is656％，L3H4is

10、344％Theresultsindicatethatthestrengthdependsonthethickness，kind，andotherfactorsThecracksofstrengthenedbeamsbecomecloserandminnerInthesamedeformationthestrengthofstrengthenedbeamsfshigher曲anthecontrolledbeam刀Iemethodthemo

11、delandtheprocedureforstrengtheningcaleulationareestablishedFRPisusedtotwinearoundconcreteprismtoimproveitscompressivestrengthandultimatestrainTheresultsindicatedthattheultimatecompressivestrengthanddeformationareincrease

12、dn玲carbonfiberis也ehighesttheglassfiberisthelowestWitlltheincreaseoflayers，thepressurestrengthisincreasedFRPisusedtoinhibitAARTheresultsindicated也atitcanimprovetheperformanceofAARconcrete，improvetheflexuralstrength，decrea