您好,欢迎访问三七文档
当前位置:首页 > 电子/通信 > 综合/其它 > 张彦龙(第四代移动通信的研究)
宁夏理工学院毕业论文I摘要毕业设计是培养学生综合运用所学的基础理论、基本知识和基本技能,分析和解决实际问题的能力。它具有很强实践性和综合性,是培养学生独立工作的一种良好途径和方法。在设计过程中,我重温和巩固了以前所学的基础理论和专业技术知识,弥补了自身在这些方面的欠缺,同时更深刻地体会到了作为一名建设者无论是在设计还是在施工过程中,都必须以科学严谨的态度将理论与实践切实联系起来。在设计中,我翻阅了大量的参考资料,努力使所学的知识不断地系统化,不断地融会贯通。本设计是沈阳铁路局办公室结构设计,要求完成必要的毕业论文及建筑施工图和结构施工图等图纸。本工程占地面积约为1206.9平方米左右,总建筑面积6034.6平方米,五层,首层层高为3.9米,其余各层层高均为3.6米。办公楼主体结构采用钢筋混凝土现浇框架结构,柱网尺寸为3.3m×6.0m,总长度为82.64m,总宽度为14.64m,总高度为18。1m。本设计包括建筑设计和结构设计两个部分。设计内容包括(建筑设计部分)平面设计、立面设计、剖面设计及相应的构件设计,(结构设计部分)计算模型的选取、荷载计算、内力计算、构件设计及相应的配筋图。外墙采用240mm厚空心砖水泥砌块;楼梯间墙为240mm实心砌块;内墙采用240mm厚空心水泥砌块。柱子采用500mm×500mm方形柱,每层的柱子截面尺寸一样。梁的截面高度由其跨度确定,考虑到施工便利,边跨主梁尺寸为250mm×500mm,中跨主梁采用250㎜×400㎜,所用钢筋为HRB400级,梁板混凝土为C30,柱子为C30。本设计依据现行国家规范和相关参考设计资料完成,根据经济、安全、适用、美观、私密性的原则,并且考虑了与周围环境的和谐和统一,进行设计。结构计算中,采用D值法,计算水平地震作用和风荷载作用下框架的顶点位移和内力;采用宁夏理工学院毕业论文II分层法计算竖向荷载作用下的框架内力,并考虑地震、风的影响进行内力组合。在此基础上,进行框架梁、柱的配筋设计计算。同时,还对楼板和楼梯进行了设计。关键词:钢筋混凝土;框架结构;结构设计;内力分析宁夏理工学院毕业论文IIIAbstractGraduationdesignistocultivatestudents'comprehensiveknowledgeofbasictheory,theelementaryknowledgeandthebasicskill,analysisandtheabilitytosolvepracticalproblems.Ithasaverystrongpracticalityandcomprehensive,istocultivatestudents'workindependentlyofagoodwayandmethod.Inthedesignprocess,reviewandconsolidatethebeforeIlearnedthebasictheoryandprofessionaltechnicalknowledge,tomakeupforthelackoftheirownintheseaspects,andmoredeeplyrealizedasabuildereitherinthedesignorintheconstructionprocess,musttaketherigorousscientificattitudetothetheoryandpracticeandconnected.Inthedesign,Ilookedthroughalargenumberofreferencematerial,andstrivetomakeofknowledgeconstantlysystematic,constantmastery.Thisdesignisshenyangrailwayofficestructuredesign,askedtocompletethenecessarygraduationthesisandarchitecturalconstructiondrawingandstructureconstructiondrawinganddrawings.Theprojectcoversanareaofabout1206.9squaremeters,withatotalconstructionareaof6034.6squaremeters,fivelayers,layersofthefirsthighof3.9m,theotherseachlayeruponlayerwhichis3.6metershigh.Themainstructureofreinforcedconcretebuildingthecast-in-situframestructure,columngridsizeof3.3mx6.0m,thetotallengthof82.64m,widthis14.64mtotal,totalheightof18.1m.Thisdesignincludingbuildingdesignandstructuredesignoftwoparts.Designcontentincluding(architecturedesignpart)planedesign,theverticaldesign,thedesignofcrossandthecorrespondingcomponentdesign,(structuredesignpart)calculationmodelselection,theloadcalculation,internalforcecalculationandcomponentdesignandthecorrespondingreinforcementfigure.By240mmthickwallhollowbrickscementblock;Thestairsofthewallbetween240宁夏理工学院毕业论文IVmmsolidblock;By240mmthickwallinsidethehollowcementblock.Thepillars500mmx500mmsquarecolumn,theeverylayerofthepillarsofthesectionsize.Thebeamsectionheightbyitsspansure,consideringtheconstructionisconvenient,acrossthemaingirdersizeis250mmx500mm,acrossthemaingirderin250㎜x400㎜,usedforHRB400reinforcedlevel,beamslabconcreteasC30,pillarsforC30.Thisdesignaccordingtothenationalstandardandrelatedreferencedesignmaterialcomplete,accordingtoeconomic,security,applicationandbeautiful,theprincipleofillicitclosesex,andconsidertheandthesurroundingenvironmentharmonyandunity,tocarryonthedesign.Structuralcalculation,theDvaluemethod,thecalculationofhorizontalearthquakeeffectandwindloadtheverticesoftheframeworkofdisplacementandinternalforce;Bystratifiedunderverticalloadmethodtocalculatetheframeoftheinternalforce,andconsideringtheinfluenceoftheearthquake,windforcecombination.Onthisbasis,thebeamandcolumnonthereinforcementdesigncalculation.Atthesametime,alsoonthefloorandthestairdesign.Keywords:reinforcedconcrete;Framestructure;Structuredesign;Internalforceanalysis宁夏理工学院毕业论文V目录1摘要.................................................................IAbstract………………………………………………………………………………错误!未定义书签。1绪论...............................................错误!未定义书签。2移动通信的发展历程与4G网络结构....................错误!未定义书签。2.1移动通信的发展历程............................错误!未定义书签。2.24G网络的组成结构.............................错误!未定义书签。34G网络中的关键技术............................................-10-3.1OFDM的基本原理...............................错误!未定义书签。3.1.1OFDM的系统结构.........................错误!未定义书签。3.1.2DFT的实现..............................错误!未定义书签。3.1.3保护间隔数的选择.......................错误!未定义书签。3.1.4子载波调制与解调.......................错误!未定义书签。3.2智能天线技术(SA)..............................错误!未定义书签。3.3多输入多输出(MIMO)技术........................错误!未定义书签。3.3.1多天线系统............................错误!未定义书签。3.3.2空间分集...............................错误!未定义书签。3.3.3空分复用...............................错误!未定义书签。3.4基于IP的核心网...............................错误!未定义书签。44G的核心阅读.......................................错误!未定义书签。4.14G是什么......................................错误!未定义书签。4.24G会采用什么标准.............................错误!未定义书签。54G的发展愿望.......................................错误!未定义书签。5.1显著的差异....................................错误!未定义书签。1宁夏理工学院毕业论文VI5.2无线宽带,一插即行............................错误!未定义书签。5.3其他市场......................................错误!未定义书签。5.4我国4G的发展.................................错误!未定义书签。64G的主要优势.......................................错误!未定义书签。6.1网络频谱更宽.......
本文标题:张彦龙(第四代移动通信的研究)
链接地址:https://www.777doc.com/doc-316286 .html