粘鋼加固鋼筋混凝土梁二次受力試驗研究.pdf

1、廣西大學(xué)碩士學(xué)位論文粘鋼加固鋼筋混凝土梁二次受力試驗研究姓名：葛春雷申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：張玉新20090626EXPERIMENTALRESEACHONTHEREINFORCEDCONCRETEBEAMSTRENGTHEDBYSTEELPLATESTOSECONDARYLOADABSTRACTAmongnumerousreinforcementmethodsthemethodofreinforcementwithb

2、ondedsteelplateiswidelyusedincivilengineering，嘶t11manygoodperformance，suchassimpletechnics，highandstrongefficiencyshortconstructiontime，moreeconomicandSOonInpracticalengineering，itisimpossibletemovetheloadcompletelyonthe

3、structure，becausetherestrictionssuchastheformofstructure，typeoftheload，therequirementofusingandSOonSointhestrengthenedstructure，steelplatesstrainislagerthanoldconcretebecauseofsecondaryloadInthisexperiment，sixreinforcedc

4、oncretebeamshavebeencast，whichhavethesameshapeandmaterialsAmongthem，twocontrastbeamforthedirectloading，andotherfourisreinforcementbeam，whichconsiderthesecondaryload，andthencarriesontheanticurvedexperimentseparatelytovari

5、oustestsamplesThroughtotheobservationandtheanalysis，andunifystickthesteelreinforcementtherelatedtheorythreeproblemsisputonthethemostposition，suchasthecapabilityofbearingbending，therigidityanddeflection，theprematurefailur

6、ewhenconsidertheaffectofthesecondaryloadFromtheresultsoftheexperimentwecanseethatthesteelplatehasrestrainedtheconcretescrackdevelopment，improvedthetheperformanceofconcretesanti—topull，SOitehancesnotonlythesupportingcapac

7、ityofreinforcedconcretebeamandthecomponentrigiditybutalsaisesthecapabilityofresistancetodeflectionComparedwithcontrastingbeam，capacityofbendingofstrengthedbeamenhancedto4088％and6685％，rigidityenhancedto557％and942％Thesecon

8、daryloadaffecttherelativeheightofcompressionregion，whichbedenotedwith‘‘磊“andthenaffect、tthemaximumutilizedquantityfothesteelplates，Inthisexperiment，allstrengthedbeamshavecertainextentreductioncomparedwithcontrastingbeam，