斜拉桥毕业设计-设计计算书

带给你不一样的东西！斜拉桥毕业设计（论文）设计说明书课题名称白蛇沟大桥设计学院(部)公路学院专业桥梁工程班级21020601学生姓名闫生龙学号21020601274月28日至6月18日共7周指导教师(签字)教学院长(签字)2010年6月12日带给你不一样的东西！┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊摘要本桥根据设计任务要求，依据现行公路桥梁设计规范,综合考虑桥位的地质、地形条件，拟定了三个比选方案：双塔斜拉桥、连续刚构桥、地锚式悬索桥。按“实用、经济、安全、美观、环保”的桥梁设计原则，比较三个方案的优缺点之后，将双塔斜拉桥作为推荐方案，进行了斜拉桥总体布置和上部结构细部尺寸拟定，并利用Midas/Civil6.7.1建立了有限元简化模型，对全桥在施工阶段和成桥使用阶段进行受力和变形分析以及动力特性分析。经过有限元分析，对结构进行了应力强度验算和变形验算，在此基础上，对钢主梁和斜拉索还进行了疲劳验算。最后，对全桥进行了抗风评价和抗风验算。经分析比较和验算，表明该设计计算方法正确，内力分布合理，符合设计任务的要求。关键词：方案，斜拉桥，有限元，结构分析，验算带给你不一样的东西！┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊ABSTRACTAccordingtorequestofthedesigntask，theexistinghighwayandbridgespecification,threetypesofbridgesarepresented,whicharedoublepyloncable-stayedbridge,PCcontinuousrigidframebridgeandsuspensionbridge,onthebasisofconsideringthegeologyandterrainconditionsofthebridgeposition.Accordingtotheprincipleof“practical，economical，secure，aestheticandenvironment-friendly”，aftercomparingtheircharacterscomprehensively,thedouble-pyloncable-stayedbridgeischosenasthemaindesignscheme,andwehaveaccomplishedthegenerallayoutofthecable-stayedbridgeandredactedthedetaileddimensionofthesuperstructure.Atthesametime,wehaveanalyzedthestress,deformationanddynamiccharacteristicsofthebridgeinitsusingstageandtheconstructionstagethroughmakingfiniteelementmodelbyMidas/Civil6.7.1.Moreover,basedonthecalculationresults,thestressintensityanddeformationofbridge’sstructurewaschecked.Onthisbasis,wedidthecheckingcomputationsaboutfatigueofthesteelgirdersandcables.Inthefinally，wedidthewindresistanceassessmentandcheckingcomputation.Throughcomparisonandcheckingcomputations，itshowsthecalculationmethodofthisdesignisright,theinternalforcesdistributingisreasonable,anditissatisfiedwiththerequirementofthedesigntask.Keywords:Designs,Cable-stayedbridge,Finiteelement,Structuralanalysis,Checkingcomputations带给你不一样的东西！┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊目录概述..................................................................................................................1第一章方案比选.......................................................................................................21.1桥型方案设计概述.........................................................................................21.1.1桥型方案设计原则.....................................................................................21.1.2桥梁设计方案概述.....................................................................................21.2主桥桥型方案设计.........................................................................................31.2.1方案一：双塔斜拉桥.................................................................................31.2.2方案二预应力混凝土连续刚构桥..............................................................51.2.3方案三:地锚式悬索桥..............................................................................51.3桥型方案比选.................................................................................................8第二章总体设计.....................................................................................................102.1技术指标与设计资料...................................................................................102.1.1技术标准.................................................................................................102.1.2材料参数.................................................................................................102.1.3设计规范及标准......................................................................................112.2结构构造与总体设计...................................................................................112.2.1方案构思与总体设计...............................................................................112.2.2主梁设计.................................................................................................122.3索塔设计.......................................................................................................152.3.1索塔尺寸的拟定......................................................................................152.3.2索塔基础.................................................................................................172.4斜拉索设计...................................................................................................172.5辅助墩、过渡墩及基础...............................................................................182.5.1辅助墩及基础..........................................................................................182.5.2过渡墩及基础..........................................................................................192.6施工方案设计...............................................................................................192.6.1索塔施工.................................................................................................19带给你不一样的东西！┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊2.6.2主梁施工.................................................................................................192.7桥面系设计..............................................................................