装配式混凝土简支T梁桥毕业设计

I装配式混凝土简支T梁桥毕业设计II目录摘要.................................................................IIAbstract..............................................错误!未定义书签。引言...................................................................1第1章绪论...........................................................21.1设计选题前提....................................................21.2设计内容和方法..................................................21.3毕业设计的意义..................................................2第2章设计资料和尺寸拟定...........................................32.1基本设计资料....................................................32.2方案比选........................................................32.2.1装配式钢筋混凝土简支T梁桥....................................42.2.2梁拱组合体系桥................................................42.3桥梁构造尺寸拟定................................................52.3.1主梁高........................................................52.3.2主梁间距......................................................52.3.3主梁梁肋宽....................................................52.3.4翼缘板的尺寸..................................................52.3.5横隔梁........................................................52.4桥面铺装........................................................52.5桥面防水与桥面排水设施..........................................62.6伸缩缝..........................................................6第3章主梁计算......................................................73.1主梁的荷载弯矩横向分布系数......................................73.1.1跨中荷载弯矩横向分布系数......................................73.1.2梁端剪力横向分布系数计算.....................................13III3.2作用效应计算...................................................143.2.1永久荷载.....................................................143.2.2活载内力计算.................................................153.3.3弯矩计算结果.................................................183.3.4剪力计算结果.................................................183.4截面设计、配筋与验算...........................................213.4.1配置主筋.....................................................213.4.2持久状况截面承载能力极限状态计算.............................233.4.3根据斜截面抗剪承载力进行斜筋配置.............................243.4.4箍筋设计.....................................................283.4.5斜截面抗剪承载力验算.........................................293.4.6抗震措施.....................................................31第4章裂缝宽度和挠度验算..........................................324.1持久状况正常使用极限状态下裂缝宽度验算.........................324.2持久状况正常使用极限状态下的挠度验算...........................34第5章横隔梁计算...................................................385.1内力计算.......................................................385.1.1计算ik.......................................................385.1.2绘制弯矩影响线...............................................395.1.3内力基本组合.................................................415.2横隔梁配筋.....................................................425.2.1正弯矩配筋...................................................425.2.2负弯矩配筋...................................................43第6章行车道板计算.................................................456.1恒载及其内力...................................................466.2车辆荷载产生的内力.............................................466.3配筋...........................................................48第7章支座..........................................................49IV结论..................................................................52致谢..................................................................53参考文献.............................................................53I摘要：本桥为装配式混凝土T形梁结构，跨度为16m，主梁高1.0m，主梁采用C50混凝土，主筋采用HRB335，其他采用HPB300钢筋，桥宽为11m,桥梁上部采用5片主梁，主梁间距2.2m。按照桥梁设计的基本原则：技术先进、安全可靠、适久耐用、经济合理、美观以及利于环保，进行认真细致的设计。按照所给的桥梁基本资料，进行主梁跨径和截面尺寸的拟定，计算恒载、活载产生的内力，对这些内力进行承载能力极限状态组合和正常使用极限状态内力组合，根据这些内力组合所产生的最不利数据进行主梁、横隔梁以及行车道板的配筋和验算。关键字：荷载内力组合弯矩配筋T型梁桥IIAbstract：ThebridgeistheconstructionofTtypegirderwhichisassemblyreinforcingsteelbarthesimpleporespanis16m.Themaingirderis1.4m,whichadopttheC50concrete.CommonreinforcingsteelbaradoptHRB335andotherwithHPB300.Widthofthebridgeisnet-9m+2×1.0msidewalks.Inaccordancewiththebasicprinciplesofbridgedesign:advancedtechnology,safeandreliable,comfortableanddurable,economicalandreasonable,beautifulandenvironmentallyfriendlytocarefullydesign.Workoutthegirderbeinginprogresstostrideoverthefootpathandthecrosssectiondimensionbasedbygivenfundamentaldata.Calculatethecharacterofgirdercrosssectionandtheinternalforcethatisbeproducedbydeadloadandliveload.Combinationthecarryabilityoflimitstateofinternalforce,alsowemustcombinationthelimitstateofinternalforcefornormaluse.Calculateandcheckingcomputationconstructionassemblyofgirder,roadway’sboardanddiaphragmsaccordingtodisadvantageousdataproducedbythesecombination.Keywords：Constructionassembly、CombinationofInternalforceConstructionassemblyLoad、ConstructionofTtypegirderMoment周洛二级公路颍河简支桥梁设计1引言公路桥梁交通是为国民经济、社会发展和人民生活服务的公共基础设施，是衡量一个国家经济实力和现代化水平的重要标志。近些年随着公路等级的不断提高，路桥方面知识得到越来越多的应用，同时，各项规范也有了较大的变动，为掌握更多路桥方面知识，我选择了桥梁设计这一课题。本设计是根据设计任务书的要求和《公路桥规》的规定，选定装配式简支梁桥，该类型的梁桥具有受力均匀、稳定，施工简单且进度迅速等优点。设计内容包括拟定桥梁纵,横断面尺寸、上部结构计算，各结构配筋计算，书写计算说