考虑不同加固方法的双曲拱桥稳定性分析-豆柴文库

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考虑不同加固方法的双曲拱桥稳定性分析
Abstract:
Thestabilityanalysisofhyperbolicarchbridgeswithdifferentreinforcementmethodsisofgreatsignificanceforthedesignandconstructionofsuchstructures.Inthispaper,wesystematicallyanalyzethestabilityofhyperbolicarchbridgesundervariousreinforcementmethods,includingstrengtheningthematerials,addingtransversesupports,usingprestressedcables,andmodifyingthearchgeometry.Thenumericalanalysisandtheoreticalmodelingprovideinsightsintothestabilitybehaviorofhyperbolicarchbridges,offeringpracticalguidancefortheengineeringapplications.
1.Introduction
Hyperbolicarchbridgeshavebeenwidelyadoptedincivilengineeringduetotheiraestheticappealandstructuralefficiency.However,theirstabilityundervariousloadingconditionsisacriticalconcernforengineers.Therefore,itisnecessarytoinvestigatedifferentreinforcementmethodstoenhancethestabilityofhyperbolicarchbridges.
2.StrengtheningMaterials
Thestabilityofhyperbolicarchbridgescanbeimprovedbyenhancingthematerialproperties,suchasincreasingthecompressivestrengthofconcreteorusinghigh-strengthsteelreinforcements.Thenumericalanalysisandsimulationresultsdemonstratetherelationshipbetweenmaterialstrengthandbridgestability.However,simplyincreasingthematerialstrengthmaynotalwaysbethemosteconomicalsolution.
3.AddingTransverseSupports
Transversesupportscaneffectivelyimprovethestabilityofhyperbolicarchbridges.Byaddingtransversebeamsortrussesalongthespan,theloaddistributionandstructuralresponsecanbemodified,reducingthepotentialforinstability.Additionally,transversesupportscanprovidelateralrestraintandpreventthearchfromexcessivedeformation.Theoreticalanalysisandnumericalsimulationselucidatetheeffectivenessoftransversesupportsinenhancingthestabilityofhyperbolicarchbridges.
4.PrestressedCables
Theapplicationofprestressedcablescansignificantlyimprovethestabilityofhyperbolicarchbridges.Byintroducingadditionalaxialforcestocounteracttheexternalloads,thearchstructurecanbepre-tensionedtoreducedeformationandenhancestability.Thetheoreticalanalysisandfiniteele