Advantages & Disadvantages of Beam Bridges - Civiljungle

A beam bridge is a strong, horizontal structure that rests on two end supports, and carries traffic by acting as a beam. Beam bridges are often used for heavy ... ImportantPoint IntroductionofBeamBridgeWhatIsBeamBridge?MaterialUsedintheConstructionofBeamBridge.TypesofBeamBridges#1BeamBridgesBasedontheGeometry#aStraightBeamBridge#bCurvedBeamBridge#cTaperedBeamBridge#2ClassificationofBeamBridgeBasedontheShape#aIBeamBridge#bTBeamBridge#cCBeamBridge#3ClassificationBasedontheEquilibriumConditions#aStaticallyDeterminateBeamBridge#bStaticallyIndeterminateBeamBridge#4ClassificationBasedontheTypeofSupport#aSimplySupportedBeamBridge#bCantileverBeamBridge#cOverhangingBeamBridge#dContinuousBeamBridge#eFixedBeamBridgeHowDoesaBeamBridgeWorks?#1.Substructure#2.Superstructure#3.DeckoftheBridgeAdvantagesofBeamBridgesDisadvantagesofBeambridgesBeamBridgesExamplesVikramShilaBridgeLakePontchartrainCauseway,LouisianaManchacSwampBridgeBeamBridgeProsandConsPros of BeamBridgeCons of BeamBridge AdvantagesofBeamBridge:BeamBridgeStrengthsandWeaknessesFamousBeamBridgeBeamBridgeFactsAdvantagesandDisadvantagesofBeamBridgesBeamBridgeExamplesHowDoesaBeamBridgeWork?BeamBridges IntroductionofBeamBridge BridgesareoneofthemostimportantpartsoftheInfrastructureofthecountrywhichplaysagreatroleinthetransportationofrawmaterialsfromoneendtoanotherend. Therearemanytypesofbridgeswhichareconstructedforthemovementoftraffic.Inwhicharticle,youwillgettoknowaboutbeamBridge andthetypesofbeamBridge. WhatIsBeamBridge? BeamBridgeisoneofthemostcommonandwidelyusedbasictypesofBridge.BeamBridgeisalsoknownastheGirderBridge. Themainaimofconstructingabridgeistoprovidepassageoftrafficfromoneendtoanotherend.BeamBridgesarethesimpleststructuralformsforthespansofthebridgewhichissupportedbytheabutmentsorpiersateachend. Itisbasicallyahorizontalslabforbeamwhichissupportedateachend.BeamBridgeisacommontypeofbridgewhichisheldbythesupportsattheends. Inthistypeofbridge,nomomentswillgettransferredthroughoutthesupportsothatitisknownassimplysupported.Beambridgescancarrypedestrians,trucks,lightrailandheavyrailetc. Itisverynecessarytocalculateallthebendingmomentsinabeamtoestablishasafedesignfortheconstructionofbeambridges. Also,Read: WhatIsZeroForceMemberforTruss|HowtoIdentificationof ZeroForceMembersinTruss MaterialUsedintheConstructionofBeamBridge. NowadaysthereisanAdvancementinthetechnologyduetowhichtheadvancedmaterialsareusedfortheconstructionofbridges. Thematerialswhichareusedintheconstructionofbeambridgesareasfollows. Timber Iron Steel Reinforcedcementconcrete Prestressedconcrete. PrestressedconcretematerialisbestfortheconstructionofbeamBridgebecauseitcanendurehighcompressivestresses. Also,Read: WhatIsFalsework|TypesofFalsework|CausesofFalseworkFailures TypesofBeamBridges TheBeamBridgeiscategorisedintomainlyfourtypeswhicharelistedbelow #1BasedontheGeometry StraightbeamBridge CurvedbeamBridge TaperedbeamBridge #2BasedontheShapeoftheCross-SectionoftheBridge I-BeamBridge T-BeamBridge C-BeamBridge #3BasedontheEquilibriumConditionsoftheBridge StaticallydeterminatebeamBridge StaticallyindeterminatebeamBridge #4BasedontheTypeofSupport SimplysupportedbeamBridge CantileverbeamBridge OverhangingbeamBridge ContinuousbeamBridge FixedbeamBridge Also,Read: WhatIsCrossDrainageWork|TypesofCrossDrainageWorks|SyphonAqueduct DescriptionofthebeamBridgesindetailisgivenbelow #1BeamBridgesBasedontheGeometry #aStraightBeamBridge Streetbeamsatthehorizontalcomponentwhichareusedtosupportverticalloads. #bCurvedBeamBridge Inthecurvedbeam,therearesomeassumptionswhicharetakenlikethecross-sectionhasaccessofsymmetryinaplanealongwiththelengthofthebeam.Themodulusofelasticityeremainsthesameintensionandcompression. #cTaperedBeamBridge Thestressanalysisofthetaperedbeamisdifferentascomparedtotheuniformbeamsection.Thetaperedbeamissubjectedtothetipbendingloadwhichisanalysedtopredictthedistributionsofstresses. Also,Read: WhatIsSofteningPoint|Ring-BallTestforSofteningPointofBitumen|ListofProposedtoDeterminetheSofteningPoint #2ClassificationofBeamBridgeBasedontheShape #aIBeamBridge I-beambeamsaremoreeconomicalandeasytofabricate.I-Beamhasahighmomentofinertiawhichwillhelptoresistthemoment. #bTBeamBridge Thistypeofbeamismademonolithicallywiththereinforcedcementconcrete. #cCBeamBridge C-beamisalsoknownaschannelBeam.Ithashighloadcarryingcapacityandcanbemadefromconcrete,steelandheavywood. Also,Read: IS1200ImportantPointPart-2 #3ClassificationBasedontheEquilibriumConditions #aStaticallyDeterminateBeamBridge Inregardsto beams,ifthereactionforcescanbecalculatedusingequilibriumequationsalone,theyare staticallydeterminate. Ontheotherhand,ifthereactionforcecan’tbedeterminedusingequilibriumequationsonly,othermethodshavetobeused,andthestructureissaidtobe statically indeterminate. #bStaticallyIndeterminateBeamBridge Thestructuresofthebridgeswhichcannotbeanalysedusingstaticsequationsonly,theymayrequirematerialproperties. Also,Read: DifferenceBetweenWholeCircleBearingandQuadrantalBearing|WhatIsWCB|WhatIsQB #4ClassificationBasedontheTypeofSupport #aSimplySupportedBeamBridge supports,itiscalleda simplysupportedbeambridge.Iftwoormore beams arejoinedrigidlytogetherover supports,the bridgebecomescontinuous. #bCantileverBeamBridge CantileverbeamBridgeisatypeofbeamBridgewhichissupportedatoneendonlyandfreeatanotherend. #cOverhangingBeamBridge Overhangingbeamhasatleasttwosupportsatoneendandotherisatanotherend. #dContinuousBeamBridge ContinuousbeamBridgeisatypeofbridgewhichhasmorethantwosupports. #eFixedBeamBridge FixedBeamBridgeisatypeofbridgewhichisrigidlyfixedatbothends. Also,Read: WhatIsAACBlocks|Disadvantages&AdvantagesofAACBlocks|WhyAACBlocksGetCracks|AACBlocksTechnicalSpecifications|UsesofAACBlocks HowDoesaBeamBridgeWorks? TheBeambridgeissimplyahorizontalslabwhichrestsonthesupportsattheends.Thesupportcarriestheloadcomingonthebridgeduetoheavytrafficandtransfersittothefoundation. IncaseofthebeamBridge,thewholeweightofthebeampushesstraightdownonthepiersorthesupports.Thebeamshouldbestrongsuchthatitdoesnotbendunderitsself-weightitandtheadditionalweightbythemovementofheavytraffic. WhentheloadcomingfromtheheavytraffictendstheBeamtobend.Inthiscase,theupperedgeofthebeamisincompressionandthebottomportionofthebeamisintension. Beambridgecanendurebothcompressivestressesaswellastensilestresses.Beambridgesweightandstrengthdependuponthedistanceoffthebridge. ThestrengthofthebeamBridgeisinfluencedbythe distancebetweentwopiers. Thebridgemainlyconsistsofthreeelementswhichare Substructure Superstructure DeckoftheBridge #1.Substructure ThesubstructureconsistsofthefoundationwhichtransferstheloadoftheweightofthebridgetotheundergroundStrata.Italsoconsistsofcolumnsorpiersandabutments #2.Superstructure Thesuperstructureofthebridgeisthehorizontalslabwhichspansbetweenthetwosupports. #3.DeckoftheBridge ThefunctionoftheDeckofthebridgeistocarrythemovementoftrafficfromoneendtoanotherend. Also,Read: WhatIsHardHat|HardHatColourDefinition|DifferentHardHatColourCodes|TypesofSafetyHelmets|ClassificationofHardHats AdvantagesofBeamBridges Therearemanyadvantagesofbridgeswhichareasfollows Beambridgesareverysimpleandeasytoconstruct. Beambridgesaremostlyusedintheruralandurbanareas. Intheconstructionofbeambridges,theBeamrestssimplyonthesupports. Beambridgesareeconomicalascomparedtoothertypesofbridges. Beambridgescaneasilysustaintheeffectsofthermalexpansionandmovementsoftheground. Also,Read: WhatDoesParapetMean|TypesofParapetWall|UsesofParapetWall DisadvantagesofBeambridges TheConstructionofBeamBridgeisexpensiveforlongerspans. Beambridgesundergoasignificantamountofwearandtear. BeamBridgesrequiredmoreMaintenanceascomparedtotheothertypesofbridges. TheBeamBridgeisonlysuitablefortheshortdistance. Beambridgesarenotaestheticalgoodascomparedtootherbridges. Beambridgesmaystarttosagduetoexcessiveloads. BeamBridgesExamples SomeFamousbeamBridgearelistedbelow VikramShilaBridge LakePontchartrainCauseway,Louisiana ManchacSwampBridge VikramShilaBridge LakePontchartrainCauseway,Louisiana ManchacSwampBridge Note BeamBridgeProsandCons Pros of BeamBridge BeamBridgesAreanAffordableBuildingOption. TheyCanBeBuiltVeryQuickly. ThereAreMultipleDesignOptionsAvailableforBeamBridges. MultipleMaterialOptionsAreAvailabletoUseforBeamBridges. TheyCanBePlacedAlmostAnywhere. Cons of BeamBridge ThereAreSpanLimitationstoBeamBridges. BeamBridgesCanBeSusceptibletoSagging. ABeamBridgeProvidesOnlyBasicSupports. TheyWeakenasTheyGetOlder. ABeamBridgeHasLimitedPlacementOptions. TheDeckSpanWidthofaBeamBridgeIsNaturallyLimitedbyItsDesign. TheCostAdvantagesofaBeamBridgeCanDisappear. ItIsaDesignOptionThatOffersLittleFlexibility.  AdvantagesofBeamBridge: Beambridgesareanaffordablebuildingoption. Theycanbebuiltveryquickly.  Therearemultipledesignoptionsavailablefor beambridges.  Multiplematerialoptionsareavailabletousefor beambridges. Theycanbeplacedalmostanywhere.  Therearespanlimitationsto beambridges. BeamBridgeStrengthsandWeaknesses Beambridgesmaybecostlyevenforrathershortspans,sinceexpensivesteelisrequiredasaconstructionmaterial. Whenlongspansarerequiredtobecovered, beambridges areextremelyexpensiveduetothepiersrequiredforholdingthelong beams. FamousBeamBridge SituatedinChina,theDonghaiBridgeisoneofthelongestseabridgesintheworldmeasuring32.5km(20.2miles).ThebeambridgeconnectsmainlandShanghaitooffshoreYangshanwithacablestayedsectioninthemiddleallowingthepassageoflargeships.ThebridgewascompletedbackinDecember2005andissaidtohavecost$1.64billion. BeamBridgeFacts Abeambridgeisa strong,horizontalstructurethatrestsontwoendsupports,andcarriestrafficbyactingasabeam.Beambridgesareoftenusedforheavycarsandtrainstopass,andsomearealsobuiltforpeopletowalkon.Beambridgesusedtobemadefromwoodandwerecalledlogbridges. AdvantagesandDisadvantagesofBeamBridges Beambridgesmaybecostlyevenforrathershortspans,sinceexpensivesteelisrequiredasaconstructionmaterial. Whenlongspansarerequiredtobecovered, beambridges areextremelyexpensiveduetothepiersrequiredforholdingthelong beams. BeamBridgeExamples LakePontchartrainCausewayinLouisiana,theworld’slongestover-waterbridge,isanexampleofabeambridge.Thecauseway’s24milelengthismadeupof2,243separatespansonthesouthboundlaneand1,500spansonthenorthboundlane. HowDoesaBeamBridgeWork? Initsmostbasicform,abeambridgeconsistsofahorizontalbeamthatis supportedateachendbypiers.Theweightofthebeampushesstraightdownonthepiers.Underload,thebeam’stopsurfaceispusheddownorcompressedwhilethebottomedgeisstretchedorplacedundertension. BeamBridges Beambridges,alsoknownasstringerbridges,are thesimpleststructuralformsforbridgespanssupportedbyanabutmentorpierateachend.Nomomentsaretransferredthroughoutthesupport,hencetheirstructuraltypeisknownassimplysupported. Likethispost?Shareitwithyourfriends! SuggestedRead– WhatIsBridgeAbutment|Typesof Abutments WhatArePlanted Column,FloatingColumn,HangingColumn,andStubColumn LuminousFluxVsLumens|WhatIsLuminousFlux|WhatAreLumens|HowBrightIs1000Lumens WhatIsMixDesignofConcrete|NominalMix|DesignMix|DifferenceBetweenNominalMixandDesignMix Meaning|WhatIsWaterlogging|HowtoPreventWaterlogging|EffectofWaterlogging|CausesofWaterlogging HowtoBuildaSuspensionBridge|SuspensionBridgeFacts|SuspensionBridge-Strength&Weaknesses|AdvantagesandDisadvantagesofaSuspensionBridge Comments itisverynicearticleaboutbridgeandhelpfulforcivilengineersandrelatedpeoples. Reply Superbarticlewrittenwithindepthresearch,Irecommendalltoreadthisarticle.Thanksforprovidingsuchvaluablearticles. Reply LeaveaReplyCancelreplyYouremailaddresswillnotbepublished.Requiredfieldsaremarked*Comment*Name* Email* Website Δ WriteforUsandEarnMoney PopularPost WhatDoesParapetMean|TypesofParapetWall|UsesofParapetWall WhatIsaFlightofStairs|TypesofStairs|HowManyStairsinaFlight|SomeFactsAboutStairwells CinderBlockVsConcreteBlock|WhatIsCinderBlocks|WhatIsConcreteBlocks WhatIsShoringInConstruction|TypeofShoring FloatingSlabVsMonolithicSlab|WhatIsMonolithicSlab|WhatIsFloatingSlab H-BeamvsI-Beam|WhatIsH-Beam|WhatIsI-Beam MINDBEHINDCIVILJUNGLE Hey,IamKrunalRajput.TheManBehindCivilJungle.IstartedthissitetospreadknowledgeaboutCivil/Mechanical/ElectricalEngineering.IamaDegreeHolderinCivilEngineering. YoucanfindhimonFacebook, Twitter,Tumblr,InstagramandGoogleNews. ADVERTISE AtCivilJungle,weclarifycivilengineeringandpublishallthehappenings&newsofcivilengineering. GetTraffic&Exposure.Wehelpbrandsoptimizetheironlinepresence&performance. MOREDETAIL CONNECTWITHUS