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1、翻譯材料題目：預(yù)應(yīng)力碳纖維布加固鋼筋混凝土梁抗彎性能研究出處：WebMiningandWeb-basedApplication,2009.WMWA'09.SecondPacific-AsiaConference.12目錄第一節(jié)1Abstract…………………………………………………………………12英文論文原文部分…………………………………………………………1第二節(jié)1漢語(yǔ)翻譯部分………………………………………………………………812第一章ResearchonDeflectionofStrengtheningConcreteBeamwithPrestressedCFR
2、PSheetsWANGXiangyang,JIShaobo,ZHAOGuanghuiSchoolofTransportation,WuhanUniversityofTechnologyWuhan,China,430063Wangxy2003@163.comAbstract：CFRPsheetshavebeenwidelyusedinstrengtheningconcretestructuresasanewmaterialandprestressedCFRPsheetscanimprovethecarryingcapacityofbeams.Thispaperres
3、earchedtheaffectionaboutthedeflectionandrigidityofconcretestructuresafterstrengtheningwithprestressedCFRPsheets,andderivedrelatedtheoreticformulas.ItisshownthattheprestressedCFRPsheetscannotdramaticallychangethedeflectionofthestructuresbecausetheprestressedCFRPsheetsaregenerallythinwi
4、thsmallmomentofinertiaforthestructuralsectionsKeywords:prestressed;strengthening;theoreticformulas;deflection;121IntroductionCarbonfiberreinforcedplastic(CFRP)sheetswhicharecharacteristicofhighstrength,lightweightandanticorrosionarewidelyadoptedinstrengthening,butthecapacityofhighstre
5、ngthinCFRPcan'tfullyexertwithgeneralstrengtheningmethod.PrestressedCFRPsheets(asshowninFig.1)canimprovethemechanicalbehaviorsofthemembersinusageandbeargreatsignificanceinpromotingtheresearchesofthistechnologyandfortheengineeringpractices.Figure1CarbonfiberreinforcedplasticsheetsTaking
6、thecurrentlywidelyusedboxgirderbridgesasamodel,thispaperderivesthemethodofcalculatingthedeflectionofbridgesstrengthenedwithprestressedCFRPsheetsandtheoreticallyanalyzesthemechanicalbehaviorsofthestructuresafterthestrengthening.2Calculationofthedeflection2.1CalculationprincipleWhenstre
7、ngtheningconcretebeamswithprestressedCFRPsheetsthecomponentsarecommonlyundertheactionofloads;thereinforcedbarhavealreadybeenundersometensilestrainandtheconcreteinthetensileareamayhavealreadyhadcracks.Thedeflectionofthestructuresinusageshouldbecalculatedseparately.TakingB-typeprestress
8、edcon
