高速公路互通匝道桥典型病害分析及加固设计方案探讨

金陵科技学院毕业论文英文翻译计佳伟毕业设计（论文）外文参考资料及译文译文题目：FreewayInterchangeRampBridgeTypicalDiseaseAnalysisandDesignofReinforcement学生姓名：计佳伟学号：0606110105专业：土木工程所在学院：建筑工程学院指导教师：于洪宾职称：讲师日期:2010年2月5日金陵科技学院毕业论文英文翻译-1-计佳伟FreewayInterchangeRampBridgeTypicalDiseaseAnalysisandDesignofReinforcementAbstract:Inthispaper,theFreewayInterchangeRampBridgetothetypicaldiseasedetection,analysisofthecausesofdisease,andtoproposeadetailedreinforcementdesignforthetypeofbridgetypeofdiseaseanalysisandreinforcementdesignofacertainreference.1OverviewInterchangeRampBridgeislocatedinCcaudaequinacaudaequinaexchangearea,lengthof652.50m,thebridgecross-combinationof5×25m+1×20m+2×30m+2×25m+5×25m+5×25m+5×25m+1×21m;upperstructuresuchascross-sectionofprestressedconcretecontinuousrigidframeboxgirder;flatcurveofminimumradiusof127.75m.Substructureforthewallpiers,drilledpilefoundation,integralabutment,expandbase;ballbearing;bridgeislocated80joints.Inaroutinemaintenanceinspectionfoundthatemergenceofmulti-spanboxgirderwebsverticalcracksinfloorboxgirderverticalandhorizontaldirectionanddiagonalcracksappeared.Diagonalcracksappearedbeamweb.Pierupperverticalandannularcracksappear,someofPierlateraldeviationoccurs.Forthisreason,diseasedetectionunitsconductedaspecialinspection,analysisofthecausesofthedisease,andthecorrespondingreinforcementdesign.2RampBridgeDetectionofDisease2.1ThetestcontentandtestmethodsTheuseofbridgeinspectionvehicletoprovideaplatformforthebridgeontherampboxLiangLiangbodyboards,webandflangepanelstoconductacomprehensiveexamination,andPierappearanceanddeviation,aswellasworkingconditions,bearingadetailedinspection.(1)Pierandbeamphysicalappearancetest:close-mainlyvisual-basedandfoundthattheissueofdetailedobservations.CracksfoundinthelocationofHongBiidentifiedandphotographedanduseGauge,crackwidthanddepthofinstrumentinstrumentforcracklength,width,depthofobservationandrecording.(2)supportsworkingconditionsinspections:visualdamage,abnormaldeformation,etc.,with金陵科技学院毕业论文英文翻译-2-计佳伟orwithoutobvioussignsofdeformation,padstonedamageandsoon.Foundtohavebearingdeformation,displacement,etc.,wereusedverniercaliper,padfeetetc.measurements.(3)Piervariable-bitobservation:thebridgearecurvedbridge,thepiersforthewallpiers,whileahighdegreeofbothlargepier.Inordertoensuremeasurementaccuracy,thedeviationPierPiertotakeineachhorizontalandverticalsetupinfrontofTotalStation,Pierweremeasuredhorizontalandverticaldeviation.2.2TestresultsThroughtheabovetesttobebeambody,Pier,andsupportsdiseases,summaryrecordsareasfollows:(1)BeamsandPiercracks.Diagonalwebcracksinbeamfocusedoncross-fifth,10thcross,11thCross;girderwebsverticalandbottomvertical,horizontalanddiagonalcracksconcentratedinthethirdcross,thefourthcross,thefirst14Cross,17thCross,19thcross,25cross.8PierTop4~5mawayfromthepierwithinthetransversecracksandverticalcracksappeared.(2)14bearinglateralslipoccurs,thelargestdisplacementof4.0cm.Mostboltnutrust.Oneofthenichethatsupportstheupperandlowerbolt.(3)PiermaximumhorizontaldeviationofPier13-14,angleofinclinationof6.1‰;verticaldeviationuptoNo.6pier,buttheangleofinclinationof2.9‰.3AnalysisofDisease(1)Theendofthebeamwebofdiagonalcracksappearedmainlyinthefifthcross,10thcross,11thinter-installedbytheendofthebeampositionofexpansionjoints.Astherampbridgeflatcurveradiussmallercompositeboxgirderatthemomentandtorqueundertheactionofexpansionjointsneartheendofthebeamwebmaybepartiallyaffectedbythephenomenonofshearistoolarge,andthusgiverisediagonalcracks.(2)Theverticalandbottomgirderwebsvertical,horizontalanddiagonalcracksconcentratedinthethirdcross,4thcross,14thcross,17thCross,19thcross,25cross.Theemergenceofthesecracks,withtherampbridgeflatcurveradiussmaller,boxgirder,momentandtorquecombinedeffectclearlyrelated,andbecauseofthepassageofoverloadedvehicles,increasingtheappearanceofcracks.(3)Piercracksarisemainlyfromthetopofthe4~5mintheDepartment,thisisbecausethe金陵科技学院毕业论文英文翻译-3-计佳伟bridgewillbepartofacontinuousrigidframestructure,thepiersintheoverallcoordinationofdeformationforceafterthepierfromthepiertopandbottomabout1/3bythepowerthemost,sothatthesiteeasytocrackingphenomenonoccurs.4StructuralreinforcementForatypicaldiseaseofthebridgeappeared,afterrepeatedchecking,takingintoaccountexperienceofothersimilarbridgesreinforced,thefollowingreinforcement.4.1SuperstructureReinforcement(1)CrampPierNo.5toNo.4top-sideboxgirderpieronbothsidesofweb10tothetopofPierNo.9,onbothsidesofpier-sideboxgirderwebs,onthe10thtothepiertop11onbothsidesofpier-sideboxgirderweb,needtoadoptCFRPreinforcement.(2)Thereinforcementoftherangeof3mbyendofthebeamsectionoftheentireweb,verticalandvertical30cmwideandcarbonfiberclothareused,spacing20cm.4.2ReplacementBearing(1)theneedforbearingreplacementpierNo.:CRampBridgePier15,Pier14,byside.Replacedtheoriginalbearingasingle,bi-directionalslidingpotrubberbearings,verticaltotheflatcurveoftheinsideofthebridgetoreplaceGPZ(II)2.5DX,theoutercurvereplacedGPZ(II)2.5SX.(2)Atemporarypiertopreinforcedtopbeamfulcrum.4.3substructurereinforcementTheanalysisconsideredpairsofCramp10,15,20,piersubstructurereinforceme