2_bridges in korea _v1

BridgesinKorea-LongSpanBridges-Heungbae“Harry”GilKoreaExpresswayCorporationEmail:[e-mail]KOREAKoreaExpresswayCorporationConstructedLongSpanBridgesUnder-constructionLongSpanBridgesRoadNetworks&KEC3KoreanPeninsulaComplicatedCoastlines721625810919794636225623,174No.ofIslandsLandsofIslands104,702km99,620km²49million17millionKOREAOverview※MLTM:MinistryofLand,Transport&MaritimeAffairsRoadNetworkinKOREANameofRouteAuthorityLength(km)ExpresswayKEC(3,632km)/Others(281km)3,913NationalHighwayMLTM13,905Special•MetropolitanCityRoadSpecialMetropolitanCityGovernment18,517ProvincialRoadProvincialGovernment18,193City•CountyRoadCity/CountyGovernment50,174TotalLengthofRoadNetwork104,702(asof2011)7RoadBridgesRoutesNumbersLength(km)Expressway8,1401,069NationalHighway6,610662Special•MetropolitanCityRoad1,045287ProvincialRoad4,614296City•CountyRoad7,692407Total2,721(asof2011)28,1528RoadBridgesLengthAllRoadsExpressway100M~500M6,1382,428500M~1,000M566300≥1,000M16068Total8,140(asof2011)28,152≤100M21,2885,3449Research&DevelopmentInstallation&ManagementofSubsidiaryFacilitiesConstruction,Maintenance&OperationofExpresswayDevelopmentofAreasAdjacenttoExpresswaysEstablishedin1969KoreaExpresswayCorporation3,913kmPresentGeneralInformation–7x9MasterPlan6,160km7corridorsnorthandsouth9corridorseastandwestWithin30-minutesaccesstoexpresswaysnationwideIncreasealternativeroutes2020LongSpanBridgesbefore2000sHistoricalBridges1213Bridgesin1970~198014NamhaeBridge(1973)SuspensionBridgeTotalLength:606MMainspan:404M15JindoBridge(1984)CableStayedBridgeTotalLength:484MMainSpan:344MSteelBoxGirder16DolsanBridge(1984)CableStayedBridgeTotalSpanLength:450MMainSpan:279.5MSteelBoxGirderBridgesin1990sLargenumberofsea-crossingbridgesforthedevelopmentofislandsSecuringofself-relianttechnologyforBCMandsteelboxbridgesDesignfocusedessentiallyonfunctionalityandeconomyNarodobridge(1994)OnnamBridge(1996)Changseonbridge(1995)Yaksanbridge(1999)JodoBr.(1997)Tongyoungbridge(1998)LongSpanBridgesafter2000s19LongSpanBridgesafter2000sStrongdemandsforroadinfrastructureEarly2000sConservatismindesigns&constructionsCorporationwithforeigncompanies&engineersBeginningofgoldeneraforlongspanbridgesinKoreaInitiationofNationalHighway77constructionprojectLate2000sEPCturnkeyconstructioncontractsPartialcooperation&dependencewithforeigncompanies20SeohaeBridge(2000)Firstcompositecable-stayedbridgeinKoreaSpanlength:990M(60+200+470+200+60)Girder:Stiffenedsteelgirderwithprecastslab22FoundationConcretePylonsKeySagStayCableWorksGirderErectionSeohaeBridge(2000)23Self-anchoredsuspensionbridgewiththree-dimensionalmaincableprofileTotallength:550M(125+300+125)Road-railbridge,Double-deckYongjongBridge(2000)24Cableworkontemp.bentsYongjongBridge(2000)ASequipmentsASonthemainspan3Dcablearrangements25Earth-anchoredsuspensionbridgeTotallength:900M(200+500+200)Girdertype:Stiffenedsteeltrussgirders,double-deckGwanganBridge(2002)26GwanganBridge(2002)LandmarkofBusanCity272ndJindoBridge(2005)NeedsforthenewbridgeIncreasedtrafficdemandsLackofloadbearingcapacity282ndJindoBridge(2005)Twincable-stayedbridgesLength:492.5M(74.25+344+74.25)SteelBoxGirderWinddynamicstabilityduringconstruction:TMD29NationalHighway77Project30SorokBridge(2008)Monocableself-anchoredsuspensionbridgeTotallength:470M(110+250+110)31IncheonBridge(2009)Totallength:18.25kmLengthofCSB:80+260+800+260+80MFast-trackmethodPPPProjects32StiffeningGirderErectionSteelboxgirderHSB600steelplates(Y.S.:450MPa,T.S.:600MPa)IncheonBridge(2009)33PWS(ParallelWireStrand)cable•Ultimatestrength:1770MPa•Diameterofwire:7mmIncheonBridge(2009)34IncheonBridge(2009)Construction:JUN.2005–OCT.2009(52Months)Longestcable-stayedbridgeinKorea35GeogumBridge(2011)Cable-stayedbridgeinasemi-harparrangementTotallength:1,116M(120+198+480+198+120)Bundlesof7cablesDouble-deckWarrentruss36GeogumBridge(2011)Nickname:GoldenSunlightBridge37MokpoBridge(2012)Red-crownedCrane38Steelboxgirdercable-stayedbridgeTotallength:900M(200+500+200)3waystaycablearrangementCenterspan:doubleplaneSidespans:singleplaneMokpoBridge(2012)Three-spansuspensionbridgeTotallength:2,260M(357.5+1545+357.5)4thlongestbridgeintheworldYiSun-sinBridge(2012)AdmiralYiSun-sin(Bornin1545)40Highestconcretetowerintheworldforsuspensionbridges(272m)SlipformconstructionConstructionperiodofpylon:11Months(GreatBeltBridge:254m,30Months)YiSun-sinBridge(2012)41High-strengthsteelcable:1,860MPa(Kiswire)Cableerection:newly-developedASsystemYiSun-sinBridge(2012)42Twin-BoxGirderFloatingGirderSystemYiSun-sinBridge(2012)43YiSun-sinBridge(2012)TemporaryOpeningDate:May10,201244Typicalchoice:-BalancedCantileverPSCBoxGirderBridgesBridgesfor100~200M??45NewAlternative:Extradosed*Bridges*acrossbetweenagirderbridge&acable-stayedbridge462ndPyung-YeoBridge(2007)FirstExtradosedBridgeinKoreaLength:550M(3@50+65+120+65)PierHeight:10.5M47Length:796.6M(85.35+5@125+85.25)PierHeight:8.85MGeumgaBridge(2008)48ApproachtoInchonBridge(2009)Length:310M49Hag-Na-RaeBridge(201