碳纖維與鋼板復合加固t形鋼筋混凝土梁試驗研究

1、河北理工大學碩士學位論文碳纖維與鋼板復合加固T形鋼筋混凝土梁試驗研究姓名：湯勇申請學位級別：碩士專業(yè)：結構工程指導教師：劉廷全20070401河北理工人學碩士學位論文AbstractBecauseCFRPhasmanyadvantagesCFRPstrengtheningtechniquea№ctseyesofresearchersandenglneersallovertheworldNowadays，CFRPstrengthening

2、andsteelbondinghavebeenthemostpopularwaysteinforceRCStlUeturesindomesticandabroadButinrecentyears，theresearcheshavebeenconcentratedonthestressstrainrelationship，flexural，shearandductilitybehaviorofsinglematerialreinforce

3、mentInfact，nomaterwhichmaterialhasitsownadvantagesanddisadvantagesInthispaper5RCTbeamsunderdifferentconditionsofSteelplate、CFRPa嘲andanchorconditionhavebeenexperimentallyinvestigatedAtthesametime，ultimatecapacitystrain，de

4、flectioncracLandfailuremodeweremeasuredandobservedTheresultsofexperimentshowthatextemailybondedbysteelplateandCFRPcanbeeffectivelyusedtoincreasetheloadcarrycapacityandstiffnessofbeamswhilemaintaining弛adequatelevelofdefor

5、mabilityCFRPplaysagreatroleafterthebeamisyieldedLoadcarrycapacityandstiffnesshasalessincrementbeforethebeambeillgyieldedbuttheyweregreatlyincreasedafterthebeambeingyieldedThemethodrestrictingdevelopmentofexistinga鉚比enhan

6、cingsectionstiffness；Astotheductility，thecompositerehabilitationRebeamislowerthanthatofRCbeam，butitisclosetotheCFRPrehabilitationreinforcedconcretebeamanditCansatisfytherequirementofsectionductilitycommonly；byusinghoopan

7、choragesystemsuddenbondingfailureCallbeavoidedheapplytopracticalcalculationiscommendedItprovedthatthemethodtocalculatetheultimateflexuraicapacitywaseffectiveSoit啪beappliedinprojectforreferenceFigure36，Table10，Reference55