土木工程重载运输下的铁路简支钢桁梁桥加固设计VIP免费

重载运输下的铁路简支钢桁梁桥加固设计——2#桥墩加固设计专业：土木工程姓名：xxx指导教师：xxx摘要本文主要通过对某铁路简支钢桁梁桥2#重力式桥墩进行承载能力检算、稳定性检算、以及使用有限元软件分析地震力分别与中活载、重载组合作用下的桥墩整体变形和应力检算。对该重力式桥墩进行加固设计，并进行加固设计后的检算。本文中讨论了桥墩加固方案的选择。可为其他铁路简支钢桁梁桥的桥墩的检算加固提供一定的参考。本文的主要工作：1.对桥墩在承载能力下进行墩身截面验算和抗倾覆验算。2.对桥墩在地震力作用下进行墩身截面和基础截面检算。3.对桥墩进行加固和加固后的检算。关键词桥墩，重载，检算，加固ABSTRACTThispapermainlythroughthe2#bridgetestanalysis,putingimportantonanalysisandcalculationofthepierinseismic,seismicforcewiththecombinationofCRliveloadingorheavyloadinginpierfoundationundertheactionofthedeformationandstressdistribution.Andthebridgereinforcementdesignandreinforcementcalculation.Thispaperdiscussesthepierreinforcementschemeselection.Providingsimplysupportedreinforcedconcretebeambridgecalculationprovidesthecertainreferencereinforcement.forotherrailway.Themainworkofthispaper:1.The2#pierinthecapacityofpiersectioncheckingandanti-overturningchecking.2.The2#bridgepiersectionandthebasesectionandcalculationunderseismicaction.3.Thestrengtheningandreinforcementcalculationofthepier.KeyWords:Bridge,Heavyloading,Checking,Reinforcement目录摘要ABSTRACT目录第一章绪论.............................................1.1研究背景...........................................1.1.1桥梁概况........................................1.1.2基础的地质及桥梁线路荷载情况.....................1.1.3运营中出现的病害状况............................1.2国内外关于桥墩病害与加固的研究现状................1.2.1桥墩检测加固现状................................1.2.2桥墩病害及其检测................................1.2.3桥墩加固整治....................................1.3研究意义...........................................第二章2#桥墩加固前的检算分析...........................2.1基本资料与检算要求..................................2.2荷载计算...........................................2.2.1竖向恒载计算....................................2.2.2竖向活载计算....................................2.2.3附加力的计算....................................2.3基底检算...........................................2.3.1基地倾覆稳定性检查..............................2.3.2地基承载力检查.................................2.3.3基底竖向合力偏心距检算.........................2.3.4考虑土弹性抗力的计算...........................2.4墩身截面承载系数及偏心系数检算.....................第三章有限元理论分析及建模.............................3.1概述................................................3.2midas软件介绍及实际建模3.3特征值分析.............................3.3RC设计截面配筋问题..................................3.4桥墩基础弹性抗力和基地旋转的处理...................第四章对2#桥墩抗震分析.................................4.1横桥向抗震分析......................................4.2顺桥向抗震分析.......................................4.3重载作用下的抗震分析.................................第五章2#桥墩加固........................................5.1加固思路及方案选定.................................5.2加固施工方法........................................5.3加固材料和尺寸拟定.................................第六章2#桥墩加固后检算分析................................6.1基本资料及检算要求.................