JB/T 54301-1992 QCX4系列电磁起动器
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基本信息
标准名称: | QCX4系列电磁起动器 |
中标分类: | 电工 >> 低压电器 >> 低压电器综合 |
发布日期: | |
实施日期: | 1992-07-01 |
首发日期: | |
作废日期: | 2005-04-15 |
出版日期: |
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前言
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目录
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所属分类: 电工 低压电器 低压电器综合
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基本信息
标准名称: | 铝质移门 |
中标分类: | 船舶 >> 舾装设备 >> 舱面属具 |
ICS分类: | 造船和海上建筑物 >> 船舶和海上建筑物综合 >> 甲板设备和装置 |
发布日期: | 1968-07-01 |
实施日期: | 1968-10-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 3页 |
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前言
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目录
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引用标准
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所属分类: 船舶 舾装设备 舱面属具 造船和海上建筑物 船舶和海上建筑物综合 甲板设备和装置
【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