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1、预应力混凝土连续梁桥毕业论文1．择优推荐方案。2．进行推荐方案上部结构内力分析，截面设计。3．进行推荐方案的施工验算。一．设计原始资料（实验、研究方案）1．桥位地址剖面图2．桥面设计标高434.713．平曲线半径R=∞4．纵坡i=05．单向横坡i=2%二．主要技术指标1．设计荷载：汽——超20级。2．桥面净宽：0.5+11.25+2.0+11.25+0.53．桥位气温：平均最底-12.3℃，最高+38.1℃4．地震烈度：7度三．设计完成后提交的文件和图表（论文完成后提交的文件）1．计算说明书部分：1）设计指导思想、重点、难点2）各个方案的特点，推荐方案的被选理
2、由1291）推荐方案上部结构的结构计算书、截面设计计算书2）推荐方案施工验算书3）施工中注意事项4）设计小结1．图纸部分：1）方案比较图2）推荐方案整体布置图3）推荐方案施工示意图4）推荐方案上部结构配筋构造图5）细部构造图一．主要参考资料1.《公路工程技术标准》JTGB01-20032．《桥规》3．教材：《桥梁工程》、《结构设计原理》、《基础工程》、《桥梁电算》4．与推荐方案相类似的手算实例。TheDesignofLuo-XiBridge,GuangdongGeneralTheLuo-Xibridge,Guangdong,nowunderconstructi
3、onisafourlanehighwaybridgedownstreamofZhu-JiangRiver.ThemainbridgeisdesignedjointlybyHighwayPlanningandDesignInstitute,MOCandHighwaySurveying,PlanningandDesignInstitute,Guangdong.ThewholebridgeisconstructedbyConstructionDivision,DepartmentofCommunication,GuangdongProvince.Thisbridge
4、isatsouthpartofGuangzhoucity,acrosstheZhu-JiangRiver.Thewidthoftheriveris129461m,averagedepthofwater7.28m,averagevelocityofwater0.97m/sec.Thebediscoveredwithsandofmediumsize,clayandweatheredsandstoneetc.,averagethickness19.2m.Thebedrockisbrownsandstonewhichhasanaveragecompressivestr
5、ength10MPa.Theflowissteadyandscouringofriverbedisnotgreat.Shippingboatsare5000～7000t,navigationwidth120m,height34m.Becausethenavigationisnotclosedatconstructionperiod,anyconstructionequipmententerthenavigationchannelisnotpermitted.Threealternativeswereconsideredinselectingthetypeofb
6、ridge.Theseare:continuousrigidframebridgewithmainspanof180m,continuousgriderbridgewithmianspanof150mandcablestayedbridgewith2pylonswithmianspanof230m.Asthepersenttrendistoeliminateexpansionjointsaswellasbearingsinthedesignoflongbridges,aftertechnicalandeconomicalcomparison,thescheme
7、of65+125+180+110mcontinuousrigidframeisfinallyadoptedinthedesign.Themainbridgeis480mlongwithexpansionjointsprovidedonlyatitsjunctionswithapproaches,andthesuper-structureofthemianstructureiscompletelyintegralwiththepierstoformarigidframe.Singleboxisusedforsuperstructureofmainbridge.H
8、eightofboxis4matbea
