桥梁博士毕业设计电子版.doc

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1、.word格式,摘要这次毕业设计是针对西河大桥的四车道方案进行初步设计，结合桥址处的地质条件、设计基本要求与主要技术标准，拟定了等截面预应力混凝土简支变连续梁桥、连续T梁桥、简支板桥方案，经过桥型方案比选，最终选定等截面预应力混凝土简支变连续梁桥作为推荐方案，并对m等截面预应力混凝土简支变连续梁桥方案进行了详细设计。通过查阅资料和参考相关成桥经验数据拟定主梁结构尺寸，利用桥梁博士V3.0对主梁结构进行一次成桥和施工成桥内力分析，根据分析结果进行估束，并经过配束、调束确定预应力钢束的数量与布置形式。根据配筋结果对主梁结构进行应力、内力计算组合和强

2、度、抗裂验算，根据结果表明主梁结构满足设计要求。在设计过程中，按照设计要求同时进行工程图绘制。关键词：预应力混凝土简支变连续梁桥结构设计Abstract,专业.专注..word格式,Thisgraduationdesignoffour-laneoftheWestRiverBridgeispresentedinthispaper.Accordingtogeologicalconditionsinthebridgesite,basicrequirementsofdesigningandprincipaltechnicalstandards,thre

3、ebridgeprojectshavebeendrawnup.ThefirstprogramistheSectionofprestressedconcretesimply-supportedintocontinuousgirderbridge.ThesecondprogramistheContinuousTbeambridge.ThethirdprogramisSimplysupportedslabbridge.Ultimately,theSectionofprestressedconcretesimply-supportedintoconti

4、nuousgirderbridgeisdeterminedastherecommendedproject,andadetaileddesigniscarriedoutontheprojectnamedmthevariableconstantsectionprestressedconcretecontinuousbeambridge.Structuredimensionsofmaingirderisdrewupbyresourcingandreferringtothecorrelatedexperiencedata,andtheinternalf

5、orceanalysisofonetimeformingbridgeandconstructionformingbridgeofmaingirderiscarriedonbyDoctorBridgeV3.0.Quantityofprestresswireisestimatedaccordingtotheanalysisresults,amountandlayouttypesarefixedthroughdistributingandadjustingprestresswire.Calculationofstressandinternalforc

6、eandcheckingofstrengthandcrack-resistancearebasedonthedistributionresults,designingandcomputingofpiersarebasedontheconstructionwaterlevel,andtheresultsshowthatbothmaingirderandsubstructuremeetthedesigningrequirements.Protactingofengineeringdrawingsisprogressedduringthedesign

7、ing.Keyword:prestressedconcreteacontinuousgirderbridgearchitecturaldesign,专业.专注..word格式,目录摘要IAbstractII第一章设计基本资料与主要技术指标61.1工程概况：61.2设计技术标准：61.3有关设计资料：61.4基本计算数据：7第二章桥型方案比选82.1桥梁设计原则82.2桥型方案82.3方案比选11第三章主梁截面尺寸的拟定123.1设计特点123.2主梁间距与主梁片数123.3主梁细部尺寸拟定123.4横隔梁设计133.5截面几何特性13第四章主梁

8、作用效应计算164.1单元的划分164.2施工阶段的划分174.3恒载内力的计算194.4活载内力的计算274.2.1横向分布系数计算27,专业.专注