潘黄镇跨蟒蛇河连续梁桥设计

潘黄镇跨蟒蛇河连续梁桥设计摘要:预应力与混凝土简支变连续梁桥是在建筑工程中广泛使用的，此桥型的刚度较大，在整体性能上较为优秀，行车时舒适且平稳，维护时工作量较低，另外伸缩缝小，造型也简洁美观，设计和施工的经验也是最成熟的。此设计位于盐城市潘黄镇蟒蛇河。针对该地区得地质条件和多方面情况，进行比较选择3×39m预应力混凝土连续箱梁连续梁桥，单室预制箱型梁为截面形式。这个设计是综合考虑下面的因素：截面尺寸的拟定,桥跨布设,预应力钢束布置，施工方法,设计参数以及环境的影响。在设计过程中，综合考虑了结构及材料的刚度、强度、稳定性、钢筋等级以及混凝土强度等级及性能。本桥梁设计是值得使用和推广的，它兼具了简支梁经济易施工和连续梁桥的受力状态良好、结构稳定的优点。经过本次的毕业设计，我学到了很多综合性的知识和方法，并且也将它们成功地运用到了实践中去，也对桥梁的具体使用、施工都有了一个全新的认识，在设计的过程中，我们已经可以对基础知识和专业知识进行熟练地掌握和运用，于此同时也了解了相关的设计规范，克服了在设计过程中遇到的困难和阻碍，也为以后踏上工作的时候打好基础，做足准备，迎接下一个挑战。关键词:先简支后连续；预应力混凝土连续梁桥；应力；箱型梁。盐城-滨海龙港高速连续梁桥设计盐城-滨海龙港高速连续梁桥设计AcontinuousbridgedesignofMangSheRiverinPanHuangAbstract:Prestressedandconcretesimplysupportedcontinuousbeambridgeiswidelyusedinconstructionengineering.Thisbridgetypehaslargerigidity,excellentoverallperformance,comfortableandstabledriving,lowmaintenanceworkload,smallexpansionjoints,simpleandbeautifulshape,andthemostmatureexperienceindesignandconstruction.ThisdesignislocatedinAnacondaRiver,panhuangTown,YanchengCity.Accordingtothegeologicalconditionsandvariousconditionsinthisarea,a3×39mprestressedconcretecontinuousboxgirderbridgeisselected,andthesinglechamberprefabricatedboxgirderisthesectionform.Thisdesignisbasedonthefollowingfactors:thedeterminationofthesectionsize,thearrangementofthebridgespan,thearrangementoftheprestressedsteeltendon,theconstructionmethod,thedesignparametersandtheinfluenceoftheenvironment.Inthedesignprocess,thestiffness,strength,stability,reinforcementgradeandconcretestrengthgradeandperformanceofthestructureandmaterialsareconsideredcomprehensively.Thedesignofthisbridgeisworthusingandpopularizing.Ithastheadvantagesofsimplesupportedbeameconomicandeasyconstruction,continuousbeambridgeingoodstressstateandstructuralstability.Afterthisgraduationproject,Ihavelearnedalotofcomprehensiveknowledgeandmethods,andalsosuccessfullyappliedthemtopractice,andalsohaveanewunderstandingofthespecificuseandconstructionofbridges.Intheprocessofdesign,wehavebeenabletomasterandusethebasicknowledgeandprofessionalknowledgeskillfully,andatthesametime,wehavealsounderstoodtherelevantdesignregulationsFan,whohasovercomethedifficultiesandobstaclesencounteredinthedesignprocess,hasalsolaidagoodfoundationforfuturework,madesufficientpreparationsandmetthenextchallenge.Keyword:Firstsimplysupportedandthencontinuous；Prestressedco