CFRP補強（加固）鋼筋混凝土開孔平板的試驗研究.pdf

1、江蘇大學碩士學位論文CFRP補強（加固）鋼筋混凝土開孔平板的試驗研究姓名：張益多申請學位級別：碩士專業(yè)：結構工程指導教師：劉榮桂朱步銀20040501江蘇大學碩士學位論文ABSTRACTWiththeappearanceofintelligentizedarchitecturemoreandmoreaccessoryfacilitiessuchasventilationducts，pigldinesofheat，waterandelec

2、tricsupplyautomaticproducinglinesystemandintellidentpipelinesystemarebecominggreaterandmorecomplexedTheseaccessoryfacilitiesarealwaysneedtogothroughtheconcreteslabsbytheopeningsonthemDuetotheopeningsonslabs，theslabs’mech

3、anicalbehaviorwillchangeandtheexistenceofopeningsonslabswilllowertheultimatecapacityoftheslabsSothestrengtheningofslabswitllopeningshasbeenanimportanttheoreticalandactualsubjectForitsnotablemeritssuchashighstrengthtoweig

4、htratioresistancetocorrosionandchemicalaaackcaseofhandingandgooddurabilityCFRPhasdevelopedrapidlytheseyearsandbeenwidelyusedasakindofreinforcementmaterialinstrengtheningengineeringThoughtherearemanyresearchesinCFRPstreng

5、theningonbeams，researchesaboutslabs，speciallyaboutslabs晰tllopeningsareveryscarceInmisPaDerthemechanicalbehaviourofRCslabswithopeningstrengthenedbyCFRParemainlystudiedStrengtheningeffectsareanalysedbycomparingthecrackingl

6、oadultimate10adflexuraldeformationandfailuretypeofthesemembersThemainparametersconsideredaretheCFRPthicknessthesizeandlocationofopeningsThestudyresultsindicatethattheultimatecapacityCanbeincreasedsignificantlyaswellasthe

7、ultimatedeformationthecrackingloadCanalsobeincreasedThecrackdistilbutionissearchedandthe仃ansitionofstrengthenedslabsfrombegainingtofailureiSdescribedAccordingtotheinfmitelementcalculationofthestressoftheconcreteatthereen

8、trantcornersoftheopening，aformulatocalculatethecrackingloadisputforward，thecalculationresultsaccordwellwiththetestonesMeanwhileultimatecapacityofthestrengthenedslabsiScalculatedusingyieldlinetheorytheresultsalSOagreewith

9、testonesAtlast。theauthorusesthesoftwareANSYStodofiniteelementanalysisaboutthemembersinfunprocessofexperimentandtheresultsindicatthattheCFRPdelaysthefracturedevelopingandextendingandincreasestheultimatecapacityoftheslabs。