新型复合板与钢筋混凝土码头的可靠性分析毕业论文外文翻译Word文档下载推荐.docx
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新型复合板与钢筋混凝土码头的可靠性分析毕业论文外文翻译Word文档下载推荐.docx
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lConferenceonSTELL,SPACE&
COMPOSITE:
10-15OCT2007,Yantai&
Beijing,China
RELIABILITYANALYSISOFNEWTYPECOMPOSITEPANELSOFSTELLANDCONCRETEFORWHARFS
ChanghongHuang*,NavyUniversityofEngineering,tianjin,China
ZhuobinWei.NaVyUniversityofEngineering,tianjin,china
ABSTRACT
Newtypesteel-concretecompositeslabswithstiffeningribswereporposedas
panelsofwharfstomeetspecialrequirements.Workingprocedureofawharfcanbe
reducedandprojectconstructionspeedcanbefesterbyusingthisnewtypesteel-
concretecompositeslabs.Basedonthestatisticparametersofloadandmaterial
charactersanddimensions,thesecurityandreliabilityforthenewtypesteel-
concreteslabsforwharfsintheperiodsofconstructionandusinginseaare
calculatedandcomparedwithcommonconcretepanelsofwharfs.Bythecalculated
results,advicesofthenewtypesteel-concretestructureforwharfonPilesare
proposed.
KEYWORDS:
newtypesteel-concretecompositeslabswithstiffeningribs,wharf,concretestructure,reliability,andconstructionperiod
1.Introduction
Stell-concretecompositestructurehasbeenappliedwidelyinthebuildingproject,butitisseldomappliedinwharfsinsea.Insteadofreinforcedconcretebeam-slabsystem,anewtypesteel-concretecompositestructureisdesignedforwharfonpilestomeetspecialrequirements.AtypeofcompositebeamwithconcreteandU-shapedsteelisdesignedasthebeamofwharfonpiles,andanewtypeofsteel-concretecompositeslabwithstiffeningribsisdesignedasthepanelofwharfonpiles.
Steelslabwithstiffeningribscanspanalongdistancewithoutanytemporarybraces;
furthermore,ithasbiggercarryingcapacitythanRCslabhasduringconstruction,andafterintegratingwithconcretethesteel-concretecompositeslabwithstiffeningribscansupportmoreloads.Becausetheconstructionofthisslabneedn'
tusemouldingboardandbindreinforcingsteelbars.workingprocedureofawharfcanbereducedandprojectconstructionspeedcanbefasterbyusingthisnewtypesteel-concretecompositestructure.AndbecausethisSteel-concretecompositeslabhaslessdeadweight,thehoistabilityofffloatingcranewillnotbesoimportantinbuildingawharfU-shapedsteelconcretecompositebeamhasthesameadvantage.Thusthissteel-concretecompositestructuresystemisagoodchoicetobuildawharfonPilesunderbrieftimelimitforaproject.
Thenewtypeofstell-concretecompositestructreisresearchedtoapplyinwharfs,sotherearefewexperiencesofdesign,constructionanduseoftheapplicationofthecompositestructureinwharfs.BasedonthestatisticParametersofloadandmaterialcharactersanddimensions,thesecurityandreliabilityforthenewtypesteel-concreteslabsforwharfsintheperiodsofconstructionandusinginseaarecalculatedandcomparedwithcommonconcretepanelsofwharfs.Basedonthecalculatedresultsadvicesofthenewtypesteel-concretestructureforwharfonpilesareproposed.
2.Thenewtypeofcompositebeam-slabssystems
2.1Beam-slabssystems
Tomeettherequirementsofawharfonpilesinsea,twokindsofcompositestructureareadoptedtoformanewtypeofcompositestructurebeam-slabssystem(Fig.1).OneisU-shapedsteelconcretecompositebeamwhichisalsocalledcap-stylesectioncompositebeam,Theotheristheribbedsteelformconcretecompositeslabsorthesteelsheeting-concretecompositeslabswiththereinforcedbarofprofiledsteel.
WeldingorcoldbendingsslabsintotheU-shapedsectionasthebeam'
srib,pouringconcreteintotheribandtheupsideofflangeontheU-shaPedsection,theU-shapedsteel-concretecompositebeamisformed.
Accordingasrequire,U-shapedsteelbeamscanadoptthetypeofthesectionwithliPPedbarorthesectionwithoutlip,justasFig.2.WhentheU-shapedsteelhasthelippedbar,onewayistolaythebottomslabsonthelippedbarandrootthemwithbolt(asFig.2(a)).Theotherwayistogroovefirstlyonthebottomslabsandconnectitwiththelippedbarbyplugwelding.whentheU-shapedsteelbeamhasnotthelippedbar,theendofslabsmaybeextendedintoconcreteofthebeam,thentheyarebracedonthesideribofU-shapedsteelbeam(asFig.2(b)),andthewidthofthiskindofU-shapedsteelbeamislonger.
2.2Steel-concretecompositeslabswithstiffeningribsslab
0nthebottomofthesteel-concretecompositeslabswithstiffeningribsslab,isweldedintothesteeldeckonwhichthecertainconcreteispoured(Fig.3).Theslabisone-wayslab,andtheI-shapedsteelortheT-shapedsteelmustbeParalleledtothedirectionofthespanoftheslab.Iftheslabisdesignedasone-waycontinuousplate,reinforcingsteelbarscanbesetattheupsideoftheslabonthebearingbycalculation.Becauseofstiffeningribs,theslabcanendurebigs
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