土木工程專業(yè)設(shè)計(jì)外文翻譯

土木工程專業(yè)設(shè)計(jì)外文翻譯

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1、外文翻譯題目:高層建筑學(xué)院土木建筑工程學(xué)院專業(yè)土木工程(建筑工程方向)班級(jí)2006級(jí)3班學(xué)號(hào)0603110405姓名賴俊宇指導(dǎo)教師梁新彩二〇一〇年五月19日77TallBuildingsAlthoughtherehavebeenmanyadvancementsinbuildingconstructiontechnologyingeneral,spectacularachievementshavebeenmadeinthedesignandconstructionofultrahigh-risebuildings.Theearlydevelopmentofhigh-risebuild

2、ingsbeganwithstructuralsteelframing.Reinforcedconcreteandstressed-skintubesystemshavesincebeeneconomicallyandcompetitivelyusedinanumberofstructuresforbothresidentialandcommercialpurposes.Thehigh-risebuildingsrangingfrom50to110storiesthatarebeingbuiltallovertheUnitedStatesaretheresultofinnovati

3、onsanddevelopmentofnewstructuralsystems.Greaterheightentailsincreasedcolumnandbeamsizestomakebuildingsmorerigidsothatunderwindloadtheywillnotswaybeyondanacceptablelimit.Excessivelateralswaymaycauseseriousrecurringdamagetopartitions,ceilings,andotherarchitecturaldetails.Inaddition,excessivesway

4、maycausediscomforttotheoccupantsofthebuildingbecauseoftheirperceptionofsuchmotion.Structuralsystemsofreinforcedconcrete,aswellassteel,takefulladvantageoftheinherentpotentialstiffnessofthetotalbuildingandthereforedonotrequireadditionalstiffeningtolimitthesway.Inasteelstructure,forexample,theeco

5、nomycanbedefinedintermsofthetotalaveragequantityofsteelpersquarefootoffloorareaofthebuilding.CurveAinFig.1representstheaverageunitweightofaconventionalframewithincreasingnumbersofstories.CurveBrepresentstheaveragesteelweightiftheframeisprotectedfromalllateralloads.Thegapbetweentheupperboundary

6、andthelowerboundaryrepresentsthepremiumforheightforthetraditionalcolumn-and-beamframe;Structuralengineershavedevelopedstructuralsystemswithaviewtoeliminatingthispremium.Systemsinsteel.Tallbuildingsinsteeldevelopedasaresultofseveraltypesofstructuralinnovations.Theinnovationshavebeenappliedtothe

7、constructionofbothofficeandapartmentbuildings.Frameswithrigidbelttrusses.Inordertotietheexteriorcolumnsofaframestructuretotheinteriorverticaltrusses,asystemofrigidbelttrussesatmid-heightandatthetopofthebuildingmaybeused.Agoodexampleofth

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