现浇楼板裂缝防治外文翻译文献.docx
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现浇楼板裂缝防治外文翻译文献.docx
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现浇楼板裂缝防治外文翻译文献
现浇楼板裂缝防治外文翻译文献
(文档含中英文对照即英文原文和中文翻译)
roductionandpreventionandcureofthecrackofskyscraper
Alongwiththespeedingoftownhouseconstructionstep,notafewareaswithsmallresidencessetuponeafteranother,manyinhabitantsmovecontinuouslyintothenewresidence,theirqualitytohousingrequestismoreandmorehigh,particularlypayattentiontoverymuchtosomecrackscircumstanceswhichsprinklebuildingplanktoappearnow,worrythesecracks'aringendwillcauseinsecuritytrouble,butinsuccessiontobuildingqualitydirectthesectionhurltell.
Suchasoncethesomecitydevelopacompanytosetup6layersoffloorresidence16totally,constructingareaabout100,000squaremeters,thebrickmixsstructure,thebeginningrepairs,onesteps2boxoffwiththebrickwall,eachone'sestablishingaturnofbeamtogetherbuildingplankistogetherwholetosprinkle,theplankthick100mms,concretemarknumberisC20,houselongaboutwith80-90ms,don'testablishflexiblesew,firstflooristhe2.2mgaragelayer,theC20reinforcingbarcageofthefoundationadoptioninfusestonoteastake.It'ssmallarea'sturntocompleteworkinOctober,2003,finishingconstructionacceptance,didn'tdiscoverobviouscrack,discoverthebuildingplankappearscrackwhentheinhabitantrepair,pastjointlytoqualitydirectthesectionhurltell,throughsteptoseeonthespot,16housesallexistthedepthdifferentcrack.Thecrackwidthisbetweenthe0.2mmsmms-0.4ses,thegreatmajorityofthecrackpositionisplacedinplankfourCapes,thedynastysunismoreobvious.Hence,theSuperintendentofficeofqualityconcerned,sinkingtodeclinequantityandinclinationdegreetocarryonareexaminationtothehousefirst,resultallinallowthescope,againlookintoconstructiondiagrampapertoalsomatchtorequestconcerningthenorm.Owingtoabove-mentionedcircumstance,passbyhardanalytical,theconfirmationcrackreasonhasthefollowingwhattime:
1.causenowmainreasonofsprinklingtheplankcrackistheconstringencyofconcrete,theconcreteisinthenaturethehardeningtheprocess,becausewaterevaporatescontinuously,butthephysicalvolumegradualconstringency,buttheplankisonallsidestobesubjectedtoastipulationof,can'tflexfreely,sowhentheconstringencyofconcretecausetosprinkleknotholestipulationnowshouldthedintexceedcertainlimit,certanlywillcausetosprinkleplanktoopencracknow.AndthecrackparttakeplacemuchatshouldthedintmoreconcentratedCapeintheplace-plank,butismutuallyperpendicularwiththeOvercastanglelineofwall
2.constructtooearlyonthecast-in-placeboard,addandcarryonone'sshoulderorbackthecrackcaused."normofinspectionofqualityofstructuralconstructionofconcrete"stipulates,beforetheconcreteintensityreaches1.2N/mm2,can'ttrampleorinstalltemplateandsupportonit.Butdeveloper,forraceagainsttime,catchupwithprogress,orconcreteat,congealandcongealstageafterallforthefirsttimestillinwateratthegoodcast-in-placeboardjust,takeupthepostofpurposetotrample,carrythematerial,concentrateonpilingupfragmentofbrick,mortar,template,etc..Prematureaddingandiscarriedonone'sshoulderorback,hascausedthecrackofcast-in-placeboardartificially.
3.thecrackwhichthetemperaturechangecauses.Aseverybodyknows,thecementcondensesandhardensfastatroomtemperature,thecharacteristicsuchasbeinggreatofheatofhydration,especiallyinsummer,aftertheconcreteisbuilt,thereleaseamountoftheheatofhydrationisgreat,theconcreteisunderthehightemperature,can'tgetandwatermaintenanceintime,anddesiccateandshrink,makeconcretetakeplacedrytosplit,resultinfracturingfinally.Investigationfindinthemajorityboardcornercrackin,tanbythesuntowardsthefrontdirectlythesun.
4.thehouseiscrossedtoolongtosetuptheessentialexpansionjoint,isthereasonwhichcausesthecracktoo.Thedeveloperisinordertosavetheland,oftentakethelengthofthehouseintoaccount,makethehousewholetoolong,setupexpansionjointeither,becauseoflackessentialexpansionjoint,freedomflexibledegreeinhousereachorexceedshouldsetupintervalthatexpansionjointrequire,willpresentthecracktoo.
5.theboardisdefeatedbythemuscleandsunkinthecrackproduced.Inthecourseofconstructing,becauseconstructorsoperatebarbarously,tramplethereinforcingbararbitrarily,causeandshoulderthemuscleandsink,theantiabrasionlayeristoobig,reducethesectionaleffectiveheightoftheboard,makethebearingcapacityoftheboardunabletoreachtherequirementofonesthatdesign,thuscausetheproductionofthecrackofboard.
Effectiveheight,makethebearingcapacityoftheboardunabletoreachtherequirementofonesthatdesign,thuscausetheproductionofthecrackofboard.Howtopreventandcuretheproductionoftheboardcrackofcast-in-placeboard,accordingtotheconstructionexperienceformanyyears,offersomefollowingpreventionmeasures,suitableforconsulting:
1.Dowellcast-in-placeboardmaintain,work,guaranteeconcreteintensity,preventandcureimportantlinkthatcrackproduceoneofconscientiously.Thenormstipulates,mustcoverandkeepmaintenancewarmin12hoursaftertheconcreteisbuiltatroomtemperature,ordinarycementisnolessthan7days,iftheonethatignoredtoconcretewateredmaintenance,ononehanditreduceconcreteintensity,ontheotherhanditmakeconcretetobeinthecourseofhardeningtoolatetosupplementthemoisture,thereforelackwaterandproducethecrackinalargeamount.Sodoagoodjobofwateringmaintenanceofconcrete,canalreadyreducethecrackthattemperatureproduces,canalsoreducethecrackthattheconcreteshrinkandproduce.
2.cast-in-placeboarddon'tpassmorningpeople,pilematerial,HeShiload,becauseconcretehaveasclerosiscoursebuild,,justhaveintensity;Inthiscourse,shouldmaintaintheconcrete,can'texertanyexternalforcetotheconcrete.Inasituationthattheconcretehasnothadcertainintensityyet,concentrateon,pileupconstructionmaterialorpropupmouldstand,restonit,thatbroughtthecast-in-placeboardisnotintensitylikethis,butmorecracks.So,mustmakesurethatjustallowtotrampleorinstalltemplateandsupportonitaftertheconcreteintensityreaches1.2N/mm2.
3.shoulderthicknessofantiabrasionlayerofthemusclethestrictcontrolpanel.Cast-in-placeboardshouldermuscleput,onboard,haveroofbeamaccordingtodesigningrequirementthroughgenerallyputonreinforcingbarofroofbeamorstaywithreinforcingbarlashingofroofbeamcutoff,Forcontrolgoodtoshouldermuscleantiabrasionlayerthickness,mustadopt
10-
14reinforcingbarhorsestool,vertical-horizontalinterval800mmcomefixedpositiontoshouldermusclefromsidetoside,andwithelectricweldinghorsewithshouldermuscleweldfirmstool,makehorsetobestoolwhiletheconcretebuildsnon-wiping,guarantee,shouldermusclesink,control,shouldermusclethicknessofantiabrasionlayereffectively,makeboardshouldermuscleantiabrasionlayercrossthickproducingcracking.
4.controlgoodsand,stoneinafoot-pathandmudcontentstrictly.Thethicksandinthecast-in-placeboardshouldbeselectedforuse,astoneoffoot-pathbetween0.25-0.5mm,themudcontentofgritcan'texceed1%.Sand,,stonegrainsoffoot-pathcarefulandtoolight,mudcontenttoobig,willreduceconcreteintensity,willmaketheconcreteproducethecrackfinally.
5.disposecertainamountsofanglemusclesinfourcornersoftheboard,radiatethemuscle.Takeplaceinboardcornerphenomenonthismoretocast-in-placeboardcrack,cornersetupallaroundinboardThelengthradiatesthemuscleforabout1800mm,soastomeetdemandsofanglestressoftheboard,thestresssphereofactionofmakingthecast-in-placeboardproducethecrackconformswithradiationmuscle,thuschangeandcontroltheproductionofthecrackeffectively
forcedconcretestructurereinforcedwithanoverviewRein
Sincethereformandopeningup,withthenationaleconomy'srapidandsustaineddevelopmentofareinforcedconcretestructurebuilt,reinforcedwiththedevelopmentoftechnologyhasbeengreat.Therefore,topromotetheuseofadvancedtechnologyreinforcedconnectingtoimproveprojectqualityandspeedupthepaceofconstruction,improvelaborproductivity,reducecosts,andisofgreatsignificance.
Reinforcedsteelbarsconnectingtechnologiescanbedividedintotwobroadcategorieslinkingweldingmachineryandsteel.Therearesixtypesofweldingsteelweldingmethods,andsomeapplytotheprefabricatedplant,andsomeapplytotheconstructionsite,someofbothapply.Therearethreetypesofmachinerycommonlyusedreinforcementlinkingmethodprimarilyapplicabletotheconstructionsite.Wayshasitsowncharacteristicsanddifferentapplication,andinthecontinuousdevelopmentandimprovement.Inactualproduction,shouldbebasedonspecificconditionsofwork,workingenvironmentandtechnicalrequirements,thechoiceofsuitablemethodstoachievethebestoverallefficiency.
1.1radialsqueezelink
Willbeasteelsleeveintwosetstothehighly-reinforcedDepartmentwithsuperhighpressurehydraulicequipment(squeezetongs)alongsteelsleeveradialsqueezesteelcasing,insqueezingouttongssqueezepressureroleofasteelsleeveplasticitydeformationcloselyintegratedwithreinforcedthroughreinforcedsteelsleeveandWangLiang'sPositionwillbetwosolidsteelbarslinked
Characteristic:
Connectinten
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