国外浅沉井基础The Rion-Antirion Bridge

WhenaDreambecomesRealityTheRion-AntirionBridgeJacquesCombault(France)Second Severn Crossing(UK)5 kmConfederation Bridge(Canada)13 kmRion‐AntirionBridge(Greece)5 cable‐stayed spansVasco de GamaBridge(Portugal)16.5 kmOresundBridge(Denmark –Sweden)13 kmMillauViaduct(France)8 cable‐stayed spansSutongBridge(China)1088 m long main spanHangzhouBridge(China)36 km215 yearsofMajor AchievementsGulfofCorinth2252m7383ft392m1285ft239m783ftMAINBRIDGESiteCharacteristicsSiteCharacteristics65mRIONANTIRIONDEEPWATER65m.RIONANTIRIONSANDANDGRAVELCLAYSILTWEAKALLUVIUMSSEISMICandTECTONICACTIVITY00.10.20.30.40.50.60.70.80.911.11.21.3012345678VibrationPeriodoftheStructure(s)Acceleration•PicGroundAcceleration:0.48g•MaximumAcceleration:1.20g•TectonicDrift:8mm/yearPLANELEVATIONPIERBASEVERTICALSLIP:2mHORIZONTALOPENING:2mTECTONICMOVEMENTS180000tRIONANTIRIONSHIPIMPACT16knotsNOUNUSUALPROBLEM65mWATERDEPTHWEAKALLUVIUMSSEISMICINTENSITYSHIPIMPACTTECTONICACTIVITYDEEPWATERHUGEINTERACTIONFORCESSEISMICandTECTONICACTIVITY+WEAKALLUVIUMSWHATABOUTFOUNDATION?HUGEINTERACTIONFORCES+TheAkashiKaikioBridge-Kobe(Japan)MAINBRIDGEInitialConceptInitialConceptLargediameterfootingShallowpadfoundationSpreadingwalls+PylonBasePoorqualitysoilShallowpadfoundationSoilimprovement+SupportingSoilPylonDeckConnectionDisplacementcapacitySeismichazardEnergydissipation+ExpansionjointsTectonicMovementDrop-insection+DeckConceptPylonHeadTransversePTConcretepylonheadWeight+MAINBRIDGEFinalConceptFinalConceptPylon•MadeMonolithic•Basere-designedandSimplified•HeadmadeCompositeandLight65m90m230mPylonsConceptSeabed•DepositsRemoved•ReinforcedwithSteelPipes•GravelSoil–PylonInterfaceDeck•MadeContinuous•FullySuspended•MadeSlenderDeckandCablesTheRion-AntirionBridge•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•Simplysupportedatbothends•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•SimplysupportedatbothendsCONTINUOUSDECKStay-Cables•spacing:12.174m•strands:43-55-61-73TopFlange•width:0.80-1.00m•thickness:40-80mm22.10mBottomFlange•width:1.00-1.35-1.70m•thickness:80-90mm2.20m15mm25mm•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•Simplysupportedatbothends•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•SimplysupportedatbothendsCONTINUOUSDECK2865602252560560286FinalCharacteristicsoftheBridge•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•Simplysupportedatbothends•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•SimplysupportedatbothendsCONTINUOUSDECKDAMPERSFUSE•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•Simplysupportedatbothends•Compositesteel-concretedeck•SteelIgirders2.20mhigh•Concretetopslab25cmthick•5continuousspans•Rionsidespan286mlong•3typicalspans560mlong•Antirionsidespan286mlong•Fullysuspended•2*23pairsofcable-stays•Uniformlydistributed•Regularspacing12.15m•SimplysupportedatbothendsCONTINUOUSDECKRION-ANTIRIONBridge(Greece)28656022525605602862701480890320TATARABridge(Japan)1274484751271177TINGKAUBridge(HongKong)•StructuralStability•NaturalSeimicIsolation•StructuralFlexibility•Forlinearvariations(shrinkage,creep,temperature)•Fortectonicdisplacements•Forgravityloads(traffic)•StructuralLightness•Betterseismicbehaviour•BetteraerodynamicbehaviourADVANTAGESMAINBRIDGEFinalDesignFinalDesignReinforcedSoilCapacityTHEORETICALANALYSESGlobalSoilBearingCapacityTHEORETICALANALYSESKinematicApproachoftheYieldDesignTheory01000020000300000200400600800HorizontalShearForce(MN)OverturningMoment(MN-m)9mx9m7mx7mTHEORETICALANALYSESInclusionSpacingEffectWHMCentrifugeTestinaLaboratoryEXPERIMENTALVALIDATIONCentrifugeTest:ReinforcedSoilModelEXPERIMENTALVALIDATIONCentrifugeTest:BeforeInstallationoftheFoundationModelEXPERIMENTALVALIDATIONCentrifugeTest:UltimateCapacityTestEXPERIMENTALVAL