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1、本科桥梁专业毕业设计长安大学毕业设计(论文)任务书一.设计内容(论文阐述的问题)1.拟定桥型比较方案三个。2.择优推荐方案。3.进行推荐方案上部结构内力分析,截面设计。4.进行推荐方案的施工验算。二.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%三.主要技术指标1.设计荷载:汽——超20级。1311.桥面净宽:0.5+11.25+2.0+11.25+0.52.桥位气温:平均最底-12.3℃,最高+38.1℃3.地震烈度:7度一.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
2、指导思想、重点、难点2)各个方案的特点,推荐方案的被选理由3)推荐方案上部结构的结构计算书、截面设计计算书4)推荐方案施工验算书5)施工中注意事项6)设计小结2.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)细部构造图二.主要参考资料1.《公路工程技术标准》JTGB01-20032.《桥规》1313.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,nowu
3、nderconstructionisafourlanehighwaybridgedownstreamofZhu-JiangRiver.ThemainbridgeisdesignedjointlybyHighwayPlanningandDesignInstitute,MOCandHighwaySurveying,PlanningandDesignInstitute,Guangdong.ThewholebridgeisconstructedbyConstructionDivision,DepartmentofCommunication,GuangdongProvince.Thisbridge
4、isatsouthpartofGuangzhoucity,acrosstheZhu-JiangRiver.Thewidthoftheriveris461m,averagedepthofwater7.28m,averagevelocityofwater0.97m/sec.Thebediscoveredwithsandofmediumsize,clayandweatheredsandstoneetc.,averagethickness19.2m.Thebedrockisbrownsandstonewhichhasanaveragecompressivestrength10MPa.Theflo
5、wissteadyandscouringofriverbedisnotgreat.Shippingboatsare5000~7000t,navigationwidth120m,height34m.Becausethenavigationisnotclosedatconstructionperiod,anyconstructionequipmententerthenavigationchannelisnotpermitted.Threealternativeswereconsideredinselectingthetypeofbridge.Theseare:continuousrigidf
6、ramebridgewithmainspanof180m,continuousgriderbridgewithmianspanof150mandcablestayedbridgewith2pylonswithmianspanof230m.Asthepersenttrendistoeliminateexpansionjointsaswellasbearingsinthedesignoflongbridges,aftertechnicalandeconomicalcomparison,theschemeof65+125+180+110mcontinuousrigidframeisfinall
7、yadoptedinthedesign.Themainbridgeis480mlongwithexpansionjointsprovidedonlyatitsjunctionswithapproaches,andthesuper-structureofthemianstructureiscompletelyintegralwiththepierstoformarigidframe.Singleboxisusedforsuperstr