毕业设计-人行天桥结构设计与有限元仿真分析

_______大学毕业设计（论文）人行天桥结构设计与有限元仿真分析院系名称：xx学院专业班级：xxxxxxxxxxxxxxxxx学生姓名：xxxx指导老师：xxxx教授学位论文原创性声明本人郑重声明：所呈交的论文是本人在导师的指导下独立进行研究所取得的研究成果。除了文中特别加以标注引用的内容外，本论文不包括任何其他个人或集体已经发表或撰写的成果作品。本人完全意识到本声明的法律后果由本人承担。作者签名：年月日学位论文版权使用授权书本学位论文作者完全了解学校有关保障、使用学位论文的规定，同意学校保留并向有关学位论文管理部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权省级优秀学士论文评选机构将本学位论文的全部或部分内容编入有关数据进行检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。本学位论文属于1、保密囗，在年解密后适用本授权书2、不保密囗。（请在以上相应方框内打“√”）作者签名：年月日导师签名：年月日I摘要随着改革开放的深化和经济的快速增长，城市道路日渐拥挤。为了改善城市交通状况，人行天桥应运而生。人行天桥作为城市步行空间的组成部分，不但在城市中发挥着缓解交通压力、疏散人流、为行人提供安全舒适的出行环境等重要作用，而且已经成为城市中一道亮丽的风景线，具有很高的观赏性。本文拟对武汉雄楚大道省出版城路段武汉理工大学理工一桥原址处进行人行天桥方案设计，提出三种可行的不同方案，利用Auto-CAD画出图纸，并利用计算机有限元软件对每种方案分别进行有限元仿真分析。综合考虑经济、安全、功能、美观等各方面因素，从三种方案中选出最佳方案。所得结果对改善雄楚大道车辆通行状况和武汉理工大学学生交通安全具有重要意义，并能成为雄楚大道上一道亮丽的风景线。本文特色：理论联系实际，所得方案现实中完全可行。关键词：人行天桥；方案设计；有限元仿真IIAbstractWiththerapidgrowthoftheeconomyandthedeepeningofreformandopeningup,cityroadsincreasinglybecomecrowed.Inordertoimproveurbantrafficconditions,pedestrianbridgesemerged.Footbridgepedestrianspaceaspartofthecity,notonlyplaysanimportantrole,toeasetrafficpressure,evacuationofpeople,toprovideasafeandcomfortablepedestriantravelenvi-ronmentinthecity,butalsohasbecomeabeautifullandscapeinthecity.Italsohavehighornamental.ThispaperintendstocarriedoutafootbridgedesignatthesiteofLiGongYiQiaoinWuhanUniversityofScienceandTechnologyXiongChuAvenue,andproposedthreepossibledifferentschemes.Then,useAuto-CADdrawingstodrawandusethecomputerfiniteelementanalysisseparatelyforeachprogram.Consideringvariousfactorsincludingeconomic,safety,functionality,aestheticsandotherfactorstoselectthebestsolutionfromthethreeschemes.TheresultshasgreatsignificanceinimprovingvehicletrafficconditionsinXiongChuAvenueandtrafficsafetyofstudentsinWuhanUniversity.AnditcanbecomeabeautifullandscapeinXiongChuAvenue.Thisarticlefeatures:combinationoftheorywithpractice,andtheresultingsolutioniscompletelyfeasibleinreality.Keywords:footbridge;programdesign;finiteelementsimulation目录第1章绪论.........................................................................................................................................................11.1研究的背景及意义.................................................................................................................................11.2国内研究现状.........................................................................................................................................11.3发展趋势.................................................................................................................................................11.4桥梁的几种主要分类.............................................................................................................................21.5钢结构桥梁的优势.................................................................................................................................31.6钢材的选择.............................................................................................................................................41.7本章小结.................................................................................................................................................42.1地形概况.................................................................................................................................................62.2主要技术指标.........................................................................................................................................62.3净高设计.................................................................................................................................................62.3.1桥下净高......................................................................................................................................62.3.2桥面净高......................................................................................................................................62.4桥面净宽.................................................................................................................................................62.5跨度设计.................................................................................................................................................72.6钢材选择.................................................................................................................................................72.7挠度允许值.............................................................................................................................................72.8荷载.........................................................................................................................................................72.8.1天桥设计荷载分类......................................................................................................................72.8.2人群荷载......................................................................................................................................82.9本章小结...............................................................................................