frp混雜纖維布混雜效應(yīng)分析及其結(jié)構(gòu)加固應(yīng)用

1、武漢理工大學(xué)碩士學(xué)位論文FRP混雜纖維布混雜效應(yīng)分析及其結(jié)構(gòu)加固應(yīng)用姓名：田躍飛申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：蔡江勇20090501武漢理工大學(xué)碩士學(xué)位論文ABSTRACTStructuralstrengtheninghasplayedanimportantroleinChineseinfrastructureconstructionIntherecentyearstheinvestfundsandthetechnology

2、ofreinforcementhaveimprovedrapidlybecauseofthehugedemandThedevelopmentofstrengtheningtechnologyhaspassedthroughseveralstages，fromthetraditionalmethodtoFiberReinfcreedPolymersreinforcement；andthefiberfromasingleonetothehy

3、bridonesThehybridfibershasmanyexcellentcharactersThemostimportantfeatureofthehybridfibersisthatitnotonlycouldimproveboththeductilityandthematerialsutilizationofFRPreinforcementstructuresbutalsoreducethecostofreinforcemen

4、tSoitspotentialisimmensurableDuringtheresearchonthetheoreticalofHFRPpeoplehavedonenumerousworkfocusedonthereasonhowthehybrideriectformedandwhichareinfluencefactorsalSOputforwardseveraltheorieswhichattempttoexplainthehybr

5、ideffectsHoweverthestudyofhybridfibershasnotyetachievedcoincidentresultsThereisnomaturetheoryorgenerallyacceptedmechanicalmodelforguidanceindesigningandconstructionThecurrentstudyisstillonthestageofexploratoryThisPaperbe

6、ginswiththehybridfibers’characteristichybrideffectAftersummarizingthepreviOUStheoriesandthemodel；thelaterdesigningmethodandthecalculationformulaforthehybrideffect，thePaperanalyzesthekeyfactorstakenintoconsiderationofthep

7、reviousformulaandpointoutthepreviousformula’integrityandtheinaccuracyofthekeyfactorsThen，thepaperputsforwardandvalidatedanewformulaofdispersioneffectcoef五cientwhichcanreflectthemixedeffectsforthedifferentkindsofsolidmatt

8、ersconsideringdispersionwhichiSoneofthekeyfactorsFurthermore，anothernewformulaofhybrideffectcoefficientabouthybrideffect’degreeisgivenandvalidatedbytheexperimentationFinallytheformulaforhybridfibersheetreinforeedconcrete

9、beamdesigniSderivedbasingonthemixedeffectcoe伍cientand”carbonfibersheetreinforcedconcretestructurestepairtechnicalspecifications”，whichprovidestheguidancefordesigninstructureKeywords：FiberReinforcedPlastics，hybridfiberdis