本科毕业设计外文资料翻译1.英文题目:TallingbuildingandSteelconstruction2.中文题目:高层结构与钢结构学院(部):土木建筑学院专业班级:学生姓名:指导教师:XXX助教2012年06月02日安徽理工大学毕业设计(论文)AnhuiUniversityOfScienceandTechnology外文资料TallingbuildingandSteelconstructionAlthoughtherehavebeenmanyadvancementsinbuildingconstructiontechnologyingeneral.Spectaculararchievementshavebeenmadeinthedesignandconstructionofultrahigh-risebuildings.Theearlydevelopmentofhigh-risebuildingsbeganwithstructuralsteelframing.Reinforcedconcreteandstressed-skintubesystemshavesincebeeneconomicallyandcompetitivelyusedinanumberofstructuresforbothresidentialandcommercialpurposes.Thehigh-risebuildingsrangingfrom50to110storiesthatarebeingbuiltallovertheUnitedStatesaretheresultofinnovationsanddevelopmentofnewstructualsystems.GreaterheightentailsincreasedcolumnandbeamsizestomakebuildingsmorerigidsothatunderwindloadtheywillnotswaybeyondanacceptablelimitExcessivelateralswaymaycauseseriousrecurringdamagetopartitions,ceilings.andotherarchitecturaldetails.Inaddition,excessiveswaymaycausediscomforttotheoccupantsofthebuildingbecausetheirperceptionofsuchmotion.Structuralsystemsofreinforcedconcreteaswellassteeltakefulladvantageofinherentpotentialstiffnessofthetotalbuildingandthereforerequireadditionalstiffeningtolimitthesway.InasteelstructureforexampletheeconomycanbedefinedintermsofthetotalaveragequantityofsteelpersquarefootoffloorareaofthebuildingCurveAinFig.1representstheaverageunitweightofaconventionalframewithincreasingnumbersofstories.CurveBrepresentstheaveragesteelweightiftheframeisprotectedfromalllateralloads.Thegapbetweentheupperboundaryandthelowerboundaryrepresentsthepremiumforheightforthetraditionalcolumn-and-beamframeStructuralengineershavedevelopedstructuralsystemswithaviewtoeliminatingthispremium.Systemsinsteel.Tallbuildingsinsteeldevelopedasaresultofseveraltypesofstructuralinnovations.Theinnovationshavebeenappliedtotheconstructionofbothofficeandapartmentbuildings.Framewithrigidbelttrusses.Inordertotietheexteriorcolumnsofaframestructuretotheinteriorverticaltrussesasystemofrigidbelttrussesatmid-heightandatthetopofthebuildingmaybeused.AgoodexampleofthissystemistheFirstWisconsinBankBuilding(1974)inMilwaukee.Framedtube.Themaximumefficiencyofthetotalstructureofatallbuilding,forbothstrengthandstiffnesstoresistwindloadcanbeachievedonlyifallcolumnelementcanbeconnectedtoeachotherinsuchawaythattheentirebuildingactsasahollowtubeorrigidboxinprojectingoutoftheground.Thisparticularstructuralsystemwasprobablyusedforthefirsttimeinthe43-storyreinforcedconcreteDeWittChestnutApartmentBuildinginChicago.Themostsignificantuseofthissystemisinthetwinstructuralsteeltowersofthe110-storyWorldTradeCenterbuildinginNewYorkColumn-diagonaltrusstube.Theexteriorcolumnsofabuildingcanbespacedreasonablyfarapartandyetbemadetoworktogetherasatubebyconnectingthemwithdiagonalmembersinterestingatthecentrelineofthecolumnsandbeams.ThissimpleyetextremelyefficientsystemwasusedforthefirsttimeontheJohnHancockCentrein2安徽理工大学毕业设计(论文)AnhuiUniversityOfScienceandTechnologyChicago,usingasmuchsteelasisnormallyneededforatraditional40-storybuilding.BundledtubeWiththecontinuingneedforlargerandtallerbuildings,theframedtubeorthecolumn-diagonaltrusstubemaybeusedinabundledformtocreatelargertubeenvelopeswhilemaintaininghighefficiency...