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An arch bridge is a bridge whose main structure is composed of arches or reinforced arches. Arch bridges are very economical and advantageous if the ... midasBridge Products midasCivil Overview AllFeatures midasFEANX Overview AllFeatures GetStartedmidasCivil Getexperiencefully-functionalversionofmidasCivilforfree Solutions Analysistype MovingLoad DynamicAnalysis ConstructionStage RailStructureInteraction SoilStructureInteraction Bridgetype Cable-StayedBridges SuspensionBridges SteelBridges ArchBridges BalancedCantileverBridges PrecastConcreteBridges IntegralBridges Culverts Substructures What'sthebenefitofusingmidasCivil? ExplorewhatmidasCivilcandoforyourprojects,andwhatfeaturescanhelpforyou Customers ProjectApplications Clients MIDASExpertNetwork GetStartedmidasCivil Getexperiencefully-functionalversionofmidasCivilforfree Resources Productsupport ProductUpdate ThelatestInstalls,patchesandreleasenotes CustomerHub Searchourknowledgebase,oropentechnicalqueries Learn Blog Exploreengineeringtrends,casestudies,tricks,andtips Events Technicalseminarsandwebinarsbybridgeexperts Featuredblogofthisweek BridgeInsight:NewDevelopmentinLongSpanArchBridges Company Aboutus midasGeotech GetStartedmidasCivil Getexperiencefully-functionalversionofmidasCivilforfree Talktous TryforFree midasBridge Products Solutions Customers Resources Company Talktous TryforFree ArchBridge Solution Tableofcontents 1.WhatisanArchBridge? 2.MaincomponentsofArchBridges 3.TypesofArchBridges   1.WhatisanArchBridge? Anarchbridgeisabridgewhosemainstructureiscomposedofarchesorreinforcedarches.Archbridgesareveryeconomicalandadvantageousifthehorizontalreactionforcecausebytheloadingofverticalloadsiseffectivelyappliedandiftheyareproperlydesignedtoreducesectionalforcesofmembers. Archbridgeshavebeenwidelyusedaroundtheworldbecauseoftheiruniqueaesthetics,andareusedforlong-spanbridgesaftersuspensionandcable-stayedbridges.   Fig.Archbridge(SydneyHarbourBridge) Thestructuralpropertiesofarchesvarydependingontheshapeofthearchesandthenumberofhingers.Ingeneral,archesbecomestrongerasthenumberofhingesdecreases;however,itgreatlyimpactssettlement.     2.MainComponentsofArchBridge Themaincomponentsofarchbridgesare: Deckarchbridge Archrib Abutments/Supports HangersandSpandrels   Archbridgesareconsideredoneoftheoldesttypesofbridges.Forexample,theMycenaeanbridge,whichwasbuiltaround1600BC,wasconsideredtheoldestCorbelarchbridgetoeverbebuilt.inthiscontent,however,onlymodernarchbridgesandtheircomponentswillbereviewed.   Fig.TheMycenaeanbridge Forarchbridges,thearchservesasthemainstructuralmemberthatcarriestheloadsdirectlytotheabutmentsorsupportsascompressiveforces.Furthermore,bendingmomentsandshearforcesaresmallcomparedtogirderbridges,makingitamoreeconomicalchoice.Therearethreemaintypesofarchbridgesbeingbuiltnowadays:deckarchbridges,througharchbridges,andtied-archorbowstringarchbridges.Indeckarchbridges,thedeckliesontopofthearchrib.Thedeckcanbesupportedbyspandrelsmadeofanumberofverticalcolumns(open-spandreldeckarchbridge)orbysolidspandrelwalls(closed-spandreldeckarchbridge).Furthermore,whenthetopofthearchribdirectlysupportsthedeck,itisalsoknownasacathedralarchbridge.Inthrougharchbridges,thedeckliesbelowthearchstructureandissupportedbyverticalhangers.Furthermore,thearchribissupportedbytheabutments/supportsateachend.Lastly,intied-archbridges,theendsofthearchribareconnectedbytieswherethedeckservesastheprimarysupport.Instructuralterms,oneendofthesupportofatied-archbridgeservesasahingedwhereastheotherendofthesupportservesasaroller,allowinglongitudinalmovement.     A.DeckArchBridge   Fig.Deckandbridge Fig.Througharchbridge Fig.Tied-archbridge Therearevariouscomponentsthatcompromisesarchbridges,butthemaincomponentsarethefollowing:   B.ArchRib Thearchribisthemainstructuralmemberofthearchandisresponsibleofcarryingthedifferentloadsgeneratedinthestructure.Thearchribsarecommonlybuiltusingreinforcedconcreteorsteel,butnewinnovativematerialshavebeenusedforthearchribs,includingconcrete-filledsteeltubular,high-performanceconcrete,steelconcretecomposites,etc.Thearchribcanbebuiltasatruss,aboxgirder,aplategirder,orasahollowsection,dependingonitsusage.Forlongspanbridges,thearchribiscomposedoftrusssectionsinordertocounterthetrafficloadingscausedbythevariousvehiclescrossingthebridge.Thearchribdoesn’tonlyrepresentthemainload-bearingelementofanarchbridge,butalsorepresentthemostaestheticcomponentofthebridge.   Fig.RamstoreArchbridgeonQabanbayBatyrAve C.Abutments/Supports Theabutments/supportsareoneofthemostimportantcomponentsofarchbridgesbecausemostoftheloadscarriedbythearchribaretransmittedintotheabutments.Therefore,theabutmentsmustbeheavyandlargeenoughtocarrythehorizontalthrustfromthearch.Reinforcedconcreteandsteelarecommonmaterialsusedfortheabutments,butnewmaterialslikecellularreinforcedconcreteandmassconcreteareusedinordertoreducecosts.Forexample,incellularreinforcedconcreteabutments,thecellularportionoftheabutmentisfilledwithsoilinordertoadjustthenecessaryweightoftheabutment.   Fig.AbutmentoftheBlackfriarsRailwaybridge D.Hangers(througharchbridges)andSpandrel(deckarchbridges) Dependingonthetypeofarchbridge,thedeckcanbesupportedbyspandrelsontopofthearchribofsuspendedbyverticalhangers.Fordeckarchbridges,solidspandrelwallscanbeplacedontopofthearchribtosupportthebridgedeck.Thefillonthewallsaremostlymadeoutofmasonryorconcrete.However,modernbridgesuseadifferentapproachbyaddingverticalcolumnsmadeoutofsteelorconcretethatdirectlysupportthedeckofthebridge. Forthrougharchbridges,thedeckofthebridgeissuspendedbyhangers,whichareloadedintension.ThehangerscanbedesignedasI-sections,circularhollowsections,orcablesdependingontheconditionstowhichthearchbridgeissituated.Furthermore,recentstudiesonhangerarrangementoptimizationhaveshownthatsparsehangersystemsprovideadvantagessuchasbettermechanicalperformance.   Fig.Spandrels(verticalcolumns) Fig.Hangers 3.TypesofArchBridge Archbridgesaresubdividedintodeckbridges,half-throughbridges,andthroughbridgesdependingonthelocationoftheroad.Moreover,theyarefurtherdivideddependingonthetypeofarchrib,suchassolidarchribs,bracedarchribs,andspandrelbracedarchribs. ThereareothertypesofarchbridgessuchastheLangerbridge,Lohsebridge,NielsenBridge,andTiedarchbridge.   A.TiedArch Thearchribrigidityisgreaterthanthatofthestiffenedgirder,sotheribmainlyresistsaxialforcesandbendingmoments.Furthermore,onlyaxialforcesaregeneratedinthestiffenedgirder.     Fig.Tiedarch B.LangerArch Therigidityofthestiffenedgirderislargerthanthatofthearchrib.Therefore,thestiffenedgirderresistsaxialforcesandbendingmoments,andonlyaxialforcesaregeneratedinthearchrib.  Fig.Langerarch C.LohseArch Astructureinwhichthearchribandthestiffeninggirderareconnectedwithtwoelementswithflexuralstiffnessatbothends,andareconnectedbyverticalmembersthatconnectthearchribandstiffeninggirderusinghingersatbothendsoftheverticalmembers. Fig.Lohsearch D.NielsenArch Anarchtypethatusescablesasstayedstrutstoenhancetheaestheticsofthebridgeinsteadofusingverticalmemberswithflexuralstrength. Fig.Nielsenarch AnexampleofthestructuralanalysismodelforArchBridgedesignusingmidasCivilisshowninthefigurebelow: Fig.Steelbridgemodel ExplorethefeaturesprovidedinmidasCivilforArchBridges! Learnmore FreeTrialsetup Trynow.Nottomorrow. Nowaiting.Nonasties.Nocreditcardrequired. StartFreeTrial Talktoconsultants Keepexploringengineeringideas CaseStudy Cable-archBridgeAnalysiswithSeismicDamper BridgeInsight NewDevelopmentinLongSpanArchBridges News&Trends MainComponentsofArchBridges midasBridge ©MIDASITCo.,Ltd. Aboutus Partnership Contactus MIDASAccount TermsofUse PrivacyPolicy GetUpdates&Newsletters Language English Spanish Korean Chinese Japanese Russian Top midasBridge GetUpdates&Newsletters ©MIDASITCo.,Ltd. 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