【英文标准名称】:Eurocode1:Actionsonstructures-Part1-4:Generalactions-Windactions;GermanversionEN1991-1-4:2005+A1:2010+AC:2010
【原文标准名称】:欧洲规范1:对结构物的作用-第1-4部分:一般作用.风作用;德文版本EN1991-1-4-2005+A1-2010+AC-2010
【标准号】:DINEN1991-1-4-2010
【标准状态】:现行
【国别】:德国
【发布日期】:2010-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acceleration;Aerodynamics;Basis;Bond;Bridges;Buildings;Cards;Chimneys;Civilengineering;Combs;Components;Construction;Constructionworks;Cylinders;Definitions;Design;Domes;Effects;Elections;Eurocode;Fences;Frictionforces;Loading;Locations;Mathematicalcalculations;Meteorology;Methods;Naturalfrequency;Parameters;Pedestrians;Planning;Pressure;Railwayapplications;Railwaybridges;Railways;Reinforcedconcrete;Roadbridges;Roads;Roofs;Scaffolds;Specification(approval);Structuralengineeringdrawings;Structuralsystems;Structures;Surfaces;Terrain;Topography;Trials;Trusses(frames);Velocity;Vibration;Walls;Weatheringresistance;Windloading;Windpower;Windpressure;Windstress;Windvelocity;Winds
【摘要】:EN1991-1-4givesguidanceonthedetermininationofnaturalwindaactionsforthestructuraldesignofbuildingsandcivilengineeringworksforeachoftheloadedareasunderconsideration.Thisincludesthewholestructureorpartsofthestructureorelementsattachedtothestructure,e.g.ThisPartisapplicableto:-Buildingsandcivilengineeringworkswithheightsupto200m,seealso(11).-Bridgeshavingnospangreaterthan200m,providedthatthysatisfythecriteriafordynamicresponse,see(12)and8.2.Thispartisintendedtopredictcharacteristicwindactionsonland-basedstructures,theircomponentsandappendages.Certainaspectsnecessarytodeterminewindactionsonastructurearedependentonthelocationandontheavailabilityandqualityofmeteorologicaldata,thetypeofterrian,etc.TheseneedtobeprovidedintheNationalAnnexandAnnexA,throughNationalchoicebynotesinthetextasindicated.Defaultvaluesandmethodsaregiveninthemaintext,wheretheNationalAnnexdoesnotprovideinformation.AnnexAgivesillustrationsoftheterraincategoriesandprovidesrulesfortheeffectsoforographyincludingdisplacementheight,roughnesschange,influenceoflandscapeandinfluenceofneighbouringstructures.AnnexBandCgivealternativeproceduresforcalculatingthestructuralfactorcc.AnnexDgivesccfactorsfordifferenttypesofstructures.AnnexEgivesrulesforvortexinducedresponseandsomeguidanceonotheraeroelasticeffects.AnnexFgivesdynamiccharacteristicsofstructureswithlinearbehaviour.Thispartdoesnotgiveguidanceonlocalthermaleffectsonthecharactristicwind,e.g.strongarcticthermalsurfaceinversionorfunnelingortornadoes.GuyedmastsandlatticetowersaretreatedinEN1993-3-1andlightingcolumnsinEN40.Thispartdoesnotgiveguidanceonthefollowingaspects:-torsionalvibrations,e.g.tallbuildingswithacentralcore-bridgedeckvibrationsfromtransversewindturbulence-windactionsoncablesupportedbridges-vibrationswheremorethanthefundamentalmodeneedstobeconsidered.characteristicvaluesofsnowloadonthegroundbasedontheresultsofworkcarriedoutunderacontractspecifictothisEurocode,toDGIII/D3oftheEuropeanCommission.TheobjectivesofthisAnnexare:-togiveinformationtoNationalCompetentAuthoritiestohelpthemtoredraftandupdatetheirnationalmaps;-tohelptoensurethattheestablishedharmonisedproceduresusedtoproducethemapsinthisAnnexareusedinthememberstatesfortreatingtheirbasicsnowdata.AnnexDgivesguidanceforadjustingthegroundsnowloadsaccordingtothereturnperiod.AnnexEgivesinformationonthebulkweightdensityofsnow.Thispartdoesnotgiveguidanceonspecialiastaspectsofsnowloading,forexample；-impactsnowloadsresultingfromsnowslidingofforfallingfromahigherroof;-theadditionalwindloadswhichcouldresultfromchangesinshapeorsizeoftheconstructionworksduetothepresenceofsnowortheaccretionofice;-loadsinareaswheresnowispresentallyearround;-iceloading;-lateralloadingduetosnow(e.g.lateralloadsexertedbydrifts);-snowloadsonbridges.
【中国标准分类号】:P20
【国际标准分类号】:91_010_30
【页数】:151P.;A4
【正文语种】:英语