外文翻译---预应力碳纤维布加固钢筋混凝土梁抗弯性能研究

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1、翻译材料题目：预应力碳纤维布加固钢筋混凝土梁抗弯性能研究出处：WebMiningandWeb-basedApplication,2009.WMWA'09.SecondPacific-AsiaConference.12目录第一节1Abstract…………………………………………………………………12英文论文原文部分…………………………………………………………1第二节1汉语翻译部分………………………………………………………………812第一章ResearchonDeflectionofStrengtheningConcreteBeamwithPrestressedCFRPSheetsWAN

2、GXiangyang,JIShaobo,ZHAOGuanghuiSchoolofTransportation,WuhanUniversityofTechnologyWuhan,China,430063Wangxy2003@163.comAbstract：CFRPsheetshavebeenwidelyusedinstrengtheningconcretestructuresasanewmaterialandprestressedCFRPsheetscanimprovethecarryingcapacityofbeams.Thispaperresearchedtheaffectiona

3、boutthedeflectionandrigidityofconcretestructuresafterstrengtheningwithprestressedCFRPsheets,andderivedrelatedtheoreticformulas.ItisshownthattheprestressedCFRPsheetscannotdramaticallychangethedeflectionofthestructuresbecausetheprestressedCFRPsheetsaregenerallythinwithsmallmomentofinertiaforthest

4、ructuralsectionsKeywords:prestressed;strengthening;theoreticformulas;deflection;121IntroductionCarbonfiberreinforcedplastic(CFRP)sheetswhicharecharacteristicofhighstrength,lightweightandanticorrosionarewidelyadoptedinstrengthening,butthecapacityofhighstrengthinCFRPcan'tfullyexertwithgeneralstre

5、ngtheningmethod.PrestressedCFRPsheets(asshowninFig.1)canimprovethemechanicalbehaviorsofthemembersinusageandbeargreatsignificanceinpromotingtheresearchesofthistechnologyandfortheengineeringpractices.Figure1CarbonfiberreinforcedplasticsheetsTakingthecurrentlywidelyusedboxgirderbridgesasamodel,thi

6、spaperderivesthemethodofcalculatingthedeflectionofbridgesstrengthenedwithprestressedCFRPsheetsandtheoreticallyanalyzesthemechanicalbehaviorsofthestructuresafterthestrengthening.2Calculationofthedeflection2.1CalculationprincipleWhenstrengtheningconcretebeamswithprestressedCFRPsheetsthecomponents

7、arecommonlyundertheactionofloads;thereinforcedbarhavealreadybeenundersometensilestrainandtheconcreteinthetensileareamayhavealreadyhadcracks.Thedeflectionofthestructuresinusageshouldbecalculatedseparately.TakingB-typeprestressedcon