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