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1、ABSTRACTOnaccountoftheadvantagessuchasgoodeffect,easyconstruction,durability,hightemperatureresistance,goodcompatibilityandworkingharmonywiththeoriginalstructuralconcrete,HPFL(HighPerformanceFerrocementLaminate)reinforcementmethodaroundedwidespreadconcernandattentionintheRCstru
2、cturereinforcementarea.Inthispaper,experimentalresearchoftheHPFLmethodwasappliedontheflexuralpropertiesofRCboard.Firstofall,staticloadingexperimentwascarriedoutonthreefullscaleslabswiththelengthof1.5mandthethicknessof80mm,oneofwhichwasthecomparisonslab,andtheremainingtwopiecesw
3、erethereinforcementslabs.Thedamagedcomparisonslabwasthenreinforcedagain,andstaticloadingtestwascarriedouttoobservethecrackdevelopmentofreinforcementslabunderverticaluniformloading,andtomeasurethestressanddeformationofthestructure.Theload-bearingcapacityofthestructure,thecrackre
4、sistanceandthebearingcapacityoftheslabswereanalyzed.ThispapersummarizedthefactorsthatinfluencedtheflexuralcapacityofconcreteslabswithHPFLreinforcementmethod,andcomparedtheultimatebearingcapacityofthereinforcedslabandcomparisonslab.Thetestresultsshowedthatthebearingcapacityofthe
5、reinforcementslabimprovedsignificantly,especiallytheprimaryloadreinforcementslabsofJG1andJG2bothincreased118%,alsothebearingcapacityofunloadedreinforcementslabsincreased64%,anditcouldbeseenfromtheload-deflectioncurvethatthestiffnessofJG1andJG2increasedsignificantly.Thispaperthe
6、oreticallyanalyzedthetestofstrengtheningslabswithHPFLbytheplastichingelinetheory,andderivedthebearingcapacityformulaofprimaryloadreinforcementslabandsecondaryloadreinforcementslabwithHPFLandtheformulaforcalculatingthemaximumreinforcementratioofthereinforcementlayer.Alsothetheor
7、eticalcalculationsandexperimentalresultswerecomparedandanalyzed.Thetestresultedshowthat:ThetheoreticalcalculationvalueofIII万方数据thecomparisonslabDB1andthereinforcementslabJG2agreedwellwiththeexperimentalvalue.ThedifferenceoftheJG2was7.5%.Andtheexperimentalvalueofthereinforcement
8、slabJG1andJG3wasmuchlessthanthetheoreticalcalculationv
