土木工程外文翻译73742.docx
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土木工程外文翻译73742
####大学
毕业设计(论文)外文翻译
题目混凝土结构加固设计
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2014年2月28日
Concretestructurereinforcementdesign
Abstract:
structureinthelong-termnaturalenvironmentandundertheuseenvironment'sfunction,itsfunctionisweakeninevitablygradually,ourstructuralengineering'sdutynotjustmustfinishthebuildingearlierperiodtheprojectwork,butmustbeablethescienceappraisalstructuredamageobjectivelawandthedegree,andadoptstheeffectivemethodguaranteestructurethesecurityuse,thatthestructurereinforcementwillbecomeanimportantwork.Whatmayforeseewillbethe21stcentury,thehumanbuildingalsobytheconcretestructure,thesteelstructure,thebricking-upstructureandsoonprimarily,thepresentstageIwillthinkusinthestructurereinforcementthisaspectresearchshouldalsotakethisasthemainbreakthroughdirection.
Keyword:
Concretestructurereinforcementbricking-upstructurereinforcementsteelstructurereinforcement
1Concretestructurereinforcement
Concretestructure'sreinforcementdividesintothedirectreinforcementandreinforcestwokindsindirectly,whenthedesignmayactaccordingtotheactualconditionandtheoperationrequirementschoicebeingsuitablemethodandthenecessarytechnology.
1.1thedirectreinforcement'sgeneralmethod
1)Enlargesthesectionreinforcementlaw
Addstheconcretescast-in-placelevelinthereinforcedconcretememberinbendingcompressionzone,mayincreasethesectioneffectiveheight,theexpansioncrosssectionalarea,thusenhancesthecomponentrightsectionanti-curved,theobliquesectionanti-cutsabilityandthesectionrigidity,playsthereinforcementreinforcementtherole.
Inthesuitablemusclescope,theconcreteschangecurvedthecomponentrightsectionsupportingcapacityincreasealongwiththeareaofreinforcementandtheintensityenhance.Intheoriginalcomponentrightsectionratioofreinforcementnottoohighsituation,increasesthemainreinforcementareatobepossibletoproposetheplateaucomponentrightsectionanti-curvedsupportingcapacityeffectively.Ispulledinthesectiontheareatoaddthecast-in-placeconcretejackettoincreasethecomponentsection,throughnewCanadapartialandoriginalcomponentjointwork,butenhancesthecomponentsupportingcapacityeffectively,improvementnormaloperationalperformance.
Enlargesthesectionreinforcementlawconstructioncraftsimply,compatible,andhasthematuredesignandtheconstructionexperience;IssuitableinLiang,theboard,thecolumn,thewallandthegeneralstructureconcretesreinforcement;Butsceneconstruction'swetoperatingtimeislong,toproduceshascertaininfluencewiththelife,andafterreinforcingthebuildingclearancehascertainreduction.
2)Replacementconcretesreinforcementlaw
Thislaw'smeritwithenlargesthemethodofsectionstobeclose,andafterreinforcing,doesnotaffectbuilding'sclearance,butsimilarexistenceconstructionwetoperatingtimelongshortcoming;Issuitablesomewhatloworhasconcretescarrier'sandsoonseriousdefectLiang,columninthecompressionzoneconcretesintensityreinforcement.
3)thecakingoutsourcingsectionreinforcementlaw
OutsidetheBaotouSteelFactoryreinforcementiswrapsinthesectionorthesteelplateisreinforcedcomponent'soutside,outsidetheBaotouSteelFactoryreinforcesreinforcedconcreteLiangtousethewetoutsourcinglawgenerally,namelyusestheepoxyresinificationtobeinthemilkandsoonmethodswithtoreinforcethesectiontheconstructioncommissiontocakeawhole,afterthereinforcementcomponent,becauseispulledwiththecompressedsteelcrosssectionalarealargescaleenhancement,thereforerightsectionsupportingcapacityandsectionrigiditylargescaleenhancement.
ThislawalsosaidthatthewetoutsideBaotouSteelFactoryreinforcementlaw,thestressisreliable,theconstructionissimple,thesceneworkloadissmall,butisbigwiththesteelquantity,andusesinabovenotsuitably600Cinthenon-protection'ssituationthehightemperatureplace;Issuitabledoesnotallowintheuseobviouslytoincreasetheoriginalcomponentsectionsize,butrequeststosharpenitsbearingcapacitylargescaletheconcretestructurereinforcement.
4)Sticksthesteelreinforcementlaw
Outsidethereinforcedconcretememberinbendingsticksthesteelreinforcementis(rightsectionispulledinthecomponentsupportingcapacityinsufficientsectorarea,rightsectioncompressionzoneorobliquesection)thesuperficialgluesteelplate,likethismayenhanceisreinforcedcomponent'ssupportingcapacity,andconstructsconveniently.
Thislawconstructionisfast,thescenenotwetworkoronlyhastheplasteringandsoonfewwetworks,toproducesissmallwiththelifeinfluence,andafterreinforcing,isnotremarkabletotheoriginalstructureoutwardappearanceandtheoriginalclearanceaffects,butthereinforcementeffectisdecidedtoagreatextentbythegummycraftandtheoperationallevel;Issuitableinthewithstandingstaticfunction,andisinthenormalhumidityenvironmenttobendorthetensionmemberreinforcement.
5)Gluefibrereinforcementplasticreinforcementlaw
Outsidepastesthetextilefiberreinforcementispasteswiththecementingmaterialthefibrereinforcementcompoundmaterialsinisreinforcedthecomponenttopulltheregion,causesitwithtoreinforcethesectionjointwork,achievessharpensthecomponentbearingcapacitythegoal.Besideshasgluesthesteelplatesimilarmerit,butalsohasanticorrosivemuddy,bearsmoistly,doesnotincreasetheself-weightofstructurenearly,durably,themaintenancecostlowstatusmerit,butneedsspecialfireprotectionprocessing,issuitableineachkindofstressnatureconcretestructurecomponentandthegeneralconstruction.
Thislaw'sgoodandbadpointswithenlargethemethodofsectionstobeclose;Issuitablereinforcementwhichisinsufficientintheconcretestructurecomponentobliquesectionsupportingcapacity,ormustexertthecrosswisebindingforcetothecompressionalmemberthesituation.
6)Reelinglaw
Thislaw'sgoodandbadpointswithenlargethemethodofsectionstobeclose;Issuitablereinforcementwhichisinsufficientintheconcretestructurecomponentobliquesectionsupportingcapacity,ormustexertthecrosswisebindingforcetothecompressionalmemberthesituation.
7)Fangboltanchorlaw
ThislawissuitableintheconcretesintensityrankistheC20~C60concretesload-bearingmembertransformation,thereinforcement;Itisnotsuitableforalreadytheabovestructurewhichandthelightqualitystructuremakesdecentseriously.
1.2Theindirectreinforcement'sgeneralmethod
1)Pre-stressedreinforcementlaw
(1)Thepre-stressedhorizontaltensionbarreinforcesconcretesmemberinbending,becausethepre-stressedandincreasestheexteriorloadthecombinedaction,inthetensionbarhastheaxialtension,thisstrengtheccentrictransmitsonthecomponentthroughthepoleendanchor(,whentensionbarandLiangboardbottomsurfaceclosefitting,tensionbarcanlookfortunetogetherwithcomponent,thisfashionhaspartialpressurestotransmitdirectlyforcomponentbottomsurface),hastheeccentriccompressionfunctioninthecomponent,thisfunctionhasovercomethebendingmomentwhichoutsidetheparttheloadproduces,reducedoutsidetheloadeffect,thussharpenedcomponent'santi-curvedability.Atthesametime,becausethetensionbarpassestocomponent'spressurefunction,thecomponentcrackdevelopmentcanalleviate,thecontrol,theobliquesectionanti-tocutthesupportingcapacityalsoalongwithitenhancement.
Asaresultofthehorizontalliftingstem'sfunction,theoriginalcomponent'ssectionstresscharacteristicbyreceivedbendsturnedtheeccentriccompression,therefore,afterthereinforcement,component'ssupportingcapacitywasmainlydecidedinbendsundertheconditiontheoriginalcomponent'ssupportingcapacity。
(2)Afterthereinforcedconcretecomponentusesunderthepre-stressedtosupportthetypetensionbarreinforcementdecides,formsonebytoreinforcethecomponentandundersupportsthecompoundultrastaticallydeterminatestructuresystemwhichthetypetensionbariscomposed,undertheoutsideloadandthepre-stressedcombinedaction,inthetensionbarhastheaxialforceandthrough(nextsupportsandpoleendanchorspot)withcomponent'scombiningsitetransmitsforisreinforcedthecomponent,hascounter-balancedoutsidetheparttheload,changedtheoriginalcomponentsectionendogenicforcecharacteristic,thussharpenedcomponent'sbearingcapacity.
Thislawcanreduceisreinforcedcomponent'sstresslevel,notonlycausesthereinforcementeffecttobegood,moreovercanalsothegreatscopeenhancethestructureoverallsupportingcapacity,butafterreinforcing,hascertaininfluencetotheoriginalstructureoutwardappearance;Issuitableaswellasisunderthehighstress,thehighstrainedconditionconcretescomponent'sreinforcementinthegreatspanortheheavystructurereinforcement,butinthenon-protection'ssituation,cannotuseinthetemperatureabove600Cintheenvironment,isalsonotsuitableusesintheconcreteshrinkagecontinuousvariationbigstructure.
2)Increasesthesupportingreinforcementlaw
Theadditionpivotreinforcementlawisthroughthereducedmemberinbendingeffectivespan,achievesthereducedfunction,inisreinforcedonthecomponenttocarrytheeffect,raisesthestructureloadbearinglevelthegoal.Thislawsimplereliable,buteasytoharmbuilding'soriginalconditionandtheusefunction,possiblyandreducesusesthespac