公共建筑節(jié)能設(shè)計標(biāo)準(zhǔn)

·5·

Foreword

Accordingtotherequirementsof"NoticeonPrintingDevelopmentandRevisionPlanofNationalEngineeringConstructionStandardsandCodesin2012"(JIANBIAO[2012]No.5)issuedbyMinistryofHousingandUrban-RuralDevelopmentofthepeople'sRepublicofChina,thisstandardisrevisedbythestandarddraftinggrouponthebasisofextensiveinvestigationandcarefulsummarizationofpracticalexperienceandbyreferringtotherelevantinternationalandforeignadvancedstandardsandwidelysolicitingforopinions.

Maintechnicalcontentsofthisstandard:1.GeneralProvisions;2.Terms;3.BuildingandEnvelopeThermalDesign;4.Heating,VentilationandAirConditioning;5.WaterSupplyandDrainage;6.Electric;7.RenewableEnergyApplication.

Maintechnicalcontentsrevisedinthisstandardare:1.settingupatypicalpublicbuildingmodeldatabaserepresentingcharacteristicsanddistributioncharacteristicsofpublicbuildingsinChina,onsuchbasisdeterminingthegoalofenergyefficiencyofthisstandard;2.updatingbuildingenvelopethermalperformancelimitsandcoolingsourceenergyefficiencylimits,andmakingrequirementsrespectivelyaccordingtobuildingclassificationandbuildingthermalzones;3.addingpreconditionforbuildingenvelopetrade-off,supplementingandsubdividingtherequirementsoftrade-offcalculationsoftwareandinputandoutputcontent;4.addingrelevantrequirementsofwatersupplyanddrainagesystem,electricalsystemandrenewableenergyapplication.

Theprovisionsprintedinboldtypeinthisstandardarecompulsoryandmustbeenforcedstrictly.

MinistryofHousingandUrban-RuralDevelopmentisinchargeoftheadministrationofthisstandardandtheexplanationofthecompulsoryprovisions.ChinaAcademyofBuildingResearchisresponsiblefortheexplanationofspecifictechnicalcontents.Ifthereisanycommentorsuggestionduringtheprocessofimplementingthisstandard,pleasesendittothedraftinggroupforDesign

StandardforEnergyEfficiencyofPublicBuildingsofChinaAcademyofBuildingResearch

(address:No.30,North3rdRingEastRoad,100013,Beijing).

ChiefDevelopmentOrganization:

ChinaAcademyofBuildingResearch

ParticipatingDevelopmentOrganizations:

BeijingInstituteofArchitecturalDesign

ChinaArchitectureDesignandResearchGroup

ShanghaiConstructionDesignandResearchInstituteCo.,Ltd.

ChinaSouthwestArchitecturalDesign&.ResearchInstituteCo.,Ltd.TianjinArchitectureDesignInstitute

TongjiUniversityArchitecturalDesign(Group)Co.,Ltd.(TJAD)NorthwesternArchitecturalDesignInstituteCo.,Ltd.

ChinaNorthcastArchitccturalDesign&.ResearchInstituteCo.,Ltd.

·6·

Sino-GermanCollegeAppliedSciencesofTongjiUniversityShenzhenInstituteofBuildingResearch

ShanghaiAcademyofBuildingResearch

XinjiangArchitectureDesign&.ResearchInstituteChinaConstructionDesignInternational(CCDI)

ShandongProvincialArchitecturalDesignInstitute

Central-SouthArchitecturalDesignInstituteCo.,Ltd.

ArchitectDesign&.ResearchInstituteofSouthChinaUniversity

ofTechnology

ZhongkaiUniversityofAgricultureandEngineeringTechnavotorInternationalLimited

CarrierAirConditioningSales&.Service(Shanghai)Co.,Ltd.TraneAirConditioning(China)Co.,Ltd.

Daikin(China)InvestmentCo.,Ltd.

JohnsonControlsBuildingEquipmentTechnology(Wuxi)Co.,Ltd.BeijingJEGNewEnergyTech.DevelopmentCo.,Ltd.

BeijingSiemensCerberusElectronicsLtd.(BSCE)BeijingGBSWARESoftwareCo.,Ltd.

GreeElectricAppliances,Inc.ofZhuhai

ShenzhenFangdaBuildingTechnologyGroupCo.,Ltd.OwensCorning(China)InvestmentCo.,Ltd.

MENREDGroup

GuangdongAKETechnologyCo.,Ltd.OrientSundarWindoorGroup

BeijingZhenliEnergyConservationandEnvironmentalProtection

TechnologyCo.,Ltd.

ChiefDraftingStaff:

XuWeiZouYuXuHongqingWanShuie

PanYungangShouWeiweiChenQiXuFengFengYaGuFangCheXueyaLiuPeng

WangQianJinLinaLongWeidingZhaoXiaoyu

LiuMingmingLiuMingMaoHongweiZhouHuiYuXiaomingMaYoucaiChenZumingDingLixing

LiuJunyueChenXiSunDeyuYangLiming

ShiMinqiZhongMingShiWenBanGuangshengShaoKangwenLiuQiyaoChenJinZengXiaowuTianHuiChenLinanLiFeilongWeiHedong

HuangZhenliWangBilingLiuZongjiang

ChiefExaminersofThisStandard:

LangSiweiSunMinshengJinHongxiangXuHuadongZhaoLiDaiDeciWuXuelingZhangXu

ZhaoShihuaiZhiJianminWangSuying

·7·

Contents

1GeneralProvisions (1)

2Terms (2)

3BuildingandEnvelopeThermalDesign (4)

3.1GeneralRequirements (4)

3.2ArchitecturalDesign (5)

3.3BuildingEnvelopeThermalDesign (7)

3.4BuildingEnvelopeThermalPerformanceTradeoff (12)

4Heating,VentilationandAirConditioning (14)

4.1GeneralRequirements (14)

4.2HeatingandCoolingSource (15)

4.3TransmissionandDistributionSystem (21)

4.4TerminalSystem (28)

4.5Monitor,ControlandMeasure (28)

5WaterSupplyandDrainage (31)

5.1GeneralRequirements (31)

5.2WaterSupplyandDrainageSystem (31)

5.3ServiceWaterHeating (32)

6Electric (34)

6.1GeneralRequirements (34)

6.2PowerSupplyandDistributionSystem (34)

6.3Lighting (34)

6.4ElectricPowerSupervisionandMeasure (35)

7RenewableEnergyApplication (37)

7.1GeneralRequirements (37)

7.2SolarEnergyApplication (37)

7.3GroundSourceHeatPumpSystem (38)

AppendixACalculationofMeanHeatTransferCoefficientofExternalWalls (39)

AppendixBBuildingEnvelopeThermalPerformanceTrade-off (40)

AppendixCBuildingEnvelopeThermalPerformanceComplianceForm (46)

AppendixDInsulationThicknessofPipes,DuctsandEquipments (48)

ExplanationofWordinginThisStandard (51)

ListofQuotedStandards (52)

·1·

1GeneralProvisions

1.0.1Thisstandardisformulatedwithaviewtoimplementingtherelevantnationallawsandregulationsandprinciplesandpolicies,improvingindoorenvironmentofpublicbuildings,increasingenergyutilizationefficiency,promotingrenewableenergyapplicationinbuildings,andreducingbuildingenergyconsumption.

1.0.2Thisstandardisapplicabletoenergyefficiencydesignfornew,extendedandrenovatedpublicbuildings.

1.0.3Energyefficiencydesignforpublicbuildingsshall,accordingtolocalclimateconditions,improvebuildingenvelopeinsulation,increaseenergyutilizationefficiencyofbuildingequipmentandsystem,andreduceenergyconsumptionbyheating,ventilationandairconditioning,watersupplyanddrainageandelectricalsystemofbuildingsusingrenewableenergyunderthepremisesofensuringindoorenvironmentparameters.

1.0.4Whenthebuildingheightismorethan150mortheabove-groundbuildingareaofasinglebuildingismorethan200,000m2,notonlyshalltherequirementsofthisstandardbecompliedwith,butalsoexpertsshallbeorganizedtoconductspecialdemonstrationontheenergyefficiencydesign.

1.0.5Theenergy-efficientmeasuresfortheprojectshallbeindicatedintheconstructiondrawingdesigndocument.Besides,theoperatingrequirementsaresuggestedtobedescribed.

1.0.6Energyefficiencydesignforpublicbuildingsshallnotonlymeettherequirementsofthisstandard,butalsocomplywiththoseinthecurrentrelevantonesofthenation.

·2

2Terms

2.0.1Transparentcurtainwall

Thecurtainwallthroughwhichvisiblelightmaybedirectlytransmittedintotheroom.

2.0.2Shapefactor

Theratioofthebuildingexternalsurfaceareacontactingwiththeoutdooratmosphericairtotheenclosedvolumeofthebuilding.Theexternalsurfaceareaexcludestheareaofground,andnon-heatingstaircaseinternalwalls.

2.0.3Singlefacadewindowtowallratio

Theratioofthewindowopeningareaonafacadeofbuildingtothetotalareaofthefacade,windowtowallratioforshort.

2.0.4Solarheatgaincoefficient(SHGC)

Theratioofsolarradiationobtainedintheroomthroughtransparentbuildingenvelope(doorandwindowortransparentcurtainwall)tosolarradiationprojectedontheexternalsurfaceoftransparentbuildingenvelope(doorandwindowortransparentcurtainwall).Theamountofsolarradiationobtainedintheroomincludesheatobtainedfromsolarradiationthroughradiationtransmissionandthatofsolarradiationtransmittedintotheroomafterabsorbedbymembers.

2.0.5Visibletransmittance

Theratioofluminousfluxofthevisiblelightthroughtransparentmaterialstothatofthevisiblelightprojectedontheirsurfaces

2.0.6Buildingenvelopethermalperformancetrade-off

Itreferstoamethodtocalculateandcomparefull-yearenergyconsumptionbyheatingandairconditioningofreferencebuildinganddesignedbuilding,andtojudgeiftheoverallthermalperformanceofbuildingenvelopemeetstherequirementsofenergyefficiencydesign,whenarchitecturaldesignfailstofullymeettheindexrequirementsspecifiedintheBuildingEnvelopeThermalDesign,trade-offforshort.

2.0.7Referencebuilding

Thebenchmarkbuildingusedtocalculatefull-yearenergyconsumptionbyheatingandairconditioningforcompliancewiththestandardrequirements,inbuildingenvelopethermalperformancetrade-off.

2.0.8Integratedpartloadvalue(IPLV)

Asinglevalue,basedontheperformancecoefficientvalueoftheunitunderpartload,weightedaccordingtothepercentageofaccumulatedloadoftheunitundervariousloadingconditions,tocalculatetheefficiencyofwaterchillingunitatpartloadforairconditioning.

2.0.9Electricityconsumptiontotransferredheatquantityratio(EHR-h)

Theratiooftotalpowerconsumption(kW)ofcirculatingwaterpumpincentralheatingsystemtodesignthermalload(kW)underdesignconditions.

2.0.10Electricityconsumptiontotransferredcooling(heat)quantityratio[EC(H)R-a]

Thcratiooftotalpowcrconsumption(kW)ofcirculatingwaterpumpinairconditioning

·3·

chilled/hotwatersystemtodesignedcooling(heating)loadunderdesignconditions.

2.0.11Systemcoefficientofrefrigerationperformance(SCOP)

Theratioofrefrigeratingcapacityofelectricallydrivenrefrigeratingsystemtonetenergy

inputofrefrigerator,coolingwaterpumpandcoolingtowerunderdesignconditions.2.0.12Energyconsumptionperunitairvolumeofairductsystem(Ws)

Electricpower(W)consumedbyairductsystemforairconditioningandventilationbytransmittingperunitairvolume(m3/h)underdesignconditions.

·4·

3BuildingandEnvelopeThermalDesign

3.1GeneralRequirements

3.1.1Publicbuildingsshallbeclassifiedaccordingtothefollowingrequirements:

1Thebuildingswithsinglebuildingareamorethan300m2orthebuildingcomplexwithsinglebuildingarealessthanorequalto300m2buttotalbuildingareamorethan1,000m2shallbeCategoryApublicbuildings;

2Thebuildingswithsinglebuildingarealessthanorequalto300m2shallbeCategoryBpublicbuildings.

3.1.2BuildingthermaldesignzonesofrepresentativecitiesshallbedeterminedaccordingtoTable3.1.2.

Table3.1.2BuildingThermalDesignZoneofRepresentativeCities

Climatezonesandclimatesub-zones

Representativecities

Severecoldzone

SeverecoldzoneA

Boketu,Yichun,Huma,Hailar,Manzhouli,Arxan,Madoi,Heihe,NenRiver,Hailun,Qiqihar,Fujin,Harbin,Mudanjiang,Daqing,Anda,Jiamusi,Erenhot,Duolun,DaQaidam,Altay,Naqu

SeverecoldzoneB

SeverecoldzoneC

Changchun,Tonghua,Yanji,Tongliao,Siping,Fushun,Fuxin,Shenyang,Benxi,Anshan,Hohhot,Baotou,Erdos,Chifeng,EjinaCounty,Datong,Urumqi,

Karamay,Jiuquan,Xining,Shigatse,Ganzi,Kangding

Coldzone

ColdzoneA

Dandong,Dalian,Zhangjiakou,Chengde,Tangshan,Qingdao,Luoyang,Taiyuan,Yangquan,Jincheng,Tianshui,Yulin,Yanian,Baoji,Yinchuan,Pingliang,Lanzhou,Kashgar,Yining,Aba,Lhasa,Nyingchi,Beiing,Tianjin,Shijiazhuang,Baoding,Xingtai,Jinan,Dezhou,Yanzhou,Zhengzhou,Anyang,Xuzhou,Yuncheng,Xi'an

Xianyang,Turpan,Korla,Hami

ColdzoneB

Hotsummerandcoldwinterzone

Hotsummerand

coldwinterzoneA

Nanjing,Bengbu,Yancheng,Nantong,Hefei,Anqing,Jiujiang,Wuhan,

Huangshi,Yueyang,Hanzhong,Ankang,Shanghai,Hangzhou,Ningbo,Wenzhou,Yichang,Changsha,Nanchang,Zhuzhou,Yongzhou,Ganzhou,Shaoguan,Guilin,Chongqing,Dachuan,Wanzhou,Fuling,Nanchong,Yibin,Chengdu,Zunyi,Kaili,

Mianyang,Nanping

Hotsummerand

coldwinterzoneB

Hotsummerandwarmwinterzone

Hotsummerand

warmwinterzoneA

Fuzhou,Putian,Longyan,Meizhou,Xingning,Yingde,Hedi,Liuzhou,Hezhou,Quanzhou,Xiamen,Guangzhou,Shenzhen,Zhanjiang,Shantou,Nanning,Beihai,Wuzhou,Haikou,Sanya

Hotsummerand

warmwinterzoneB

Temperatezone

TemperatezoneA

Kunming,Guiyang,Lijiang,Huize,Tengchong,Baoshan,Dali,Chuxiong,Qujing,Luxi,Pingbian,Guangnan,Xingyi,Dushan

TemperatezoneB

Ruili,Gengma,Lincang,Lancang,Simao,Jiangcheng,Mengz

·5·

3.1.3Reliefofheatislandeffectshallbetakenintoconsiderationinthegeneralplanningofthearchitecturalcomplex.Generalplanningandgenerallayoutdesignofbuildingsshallfacilitatetonaturalventilationandsunlightinwinter.Thelocaloptimalorientationoroptimumorientationissuggestedtobeselectedasthemainbuildingorientation,andthebuildingsisshouldbekeptclearfromtheprevailingwinddirectioninwinter.

3.1.4Architecturaldesignshallfollowthepriorityprincipleofpassiveenergy-efficientmeasuresandreduceenergydemandofbuildingsbymakingthebestofnaturallightingandventilationincombinationwiththermalinsulationandsunshadingmeasuresofbuildingenvelope.

3.1.5Buildingsaresuggestedtobeshapedregularlyandcompactly,avoidingexcessivechangeofconcavO-concave.

3.1.6Inthegenerallayoutdesignandplanelayoutofbuildings,itisrequiredtoreasonablydeterminepositionofenergyequipmentroomandshortenenergysupplyconveyingdistanceHeating/coolingsourceequipmentroomsofthesamepublicbuildingaresuggestedtobearrangedintensivelyatorclosetothecentralpositionofcooling/thermalload.

3.2ArchitecturalDesign

3.2.1ShapefactorofpublicbuildingsinseverecoldandcoldzonemustbeinaccordancewiththosespecifiedinTable3.2.1.

Table3.2.1ShapefactorofPublicBuildingsinSevereColdandColdzone

SinglebuildingareaA(m2)

Shapefactor

300<A≤800

≤0.50

A>800

≤0.40

3.2.2Singlefacadewindowtowallratio(includingtransparentcurtainwall)ofCategoryApublicbuildingsinseverecoldzoneisnotsuggestedtobegreaterthan0.60;thatinotherzonesisnotsuggestedtobegreaterthan0.70(includingtransparentcurtainwall).

3.2.3Singlefacadewindowtowallratioshallbecalculatedaccordingtothefollowingrequirements:

1Orientationofconcavo-convexfacadeshallbecalculatedaccordingtotheorientationofthefacadeitislocated;

2Externalwallandexternalwindowofstaircaseandelevatorroomshallbecountedin;

3Areaoftop,bottomandsidewallofbaywindowshallnotbecountedintheexternalwallarea;

4Whentheexternalwindow,topandsideontheexternalwallisbaywindowwithopaque,windowareashallbecalculatedaccordingtothewindowopeningarea;whenthetopandsideofbaywindowistransparent,baywindowareashallbecalculatedaccordingtotheactualtransparent

area.

3.2.4WhensinglefacadewindowtowallratioofCategoryApublicbuildingsislessthan0.40,visibletransmittanceoftransparentmaterialsshallnotbelessthan0.60;WhensinglefacadewindowtowallratioofCategoryApublicbuildingsisgreaterthanorequalto0.40,visibletransmittanccoftransparcntmatcrialsshallnotbelessthan0.40.

·6·

3.2.5Sunshadingmeasuresshallbetakenfortheexternalwindows(includingtransparentcurtainwall)inallorientationofthebuildingsinhotsummerandwarmwinterzones,hotsummerandcoldwinterzonesandtemperatezones;sunshadingmeasureissuggestedtobetakenforthebuildingsincoldzones.Arrangementofexternalsunshadeissuggestedtomeetthefollowingrequirements:

1Movableexternalsunshadeissuggestedtobearrangedintheeast-westdirectionandhorizontalexternalsunshadeissuggestedtobearrangedinthesouthdirection;

2Externalsunshadingdevicesofbuildingsshallgiveconsiderationtoventilationandsunlightinwinter.

3.2.6Classificationofbuildingfacadeorientationshallmeetthefollowingrequirements:

1Inthenorth,northbywest60°tonorthbyeast60°;

2Inthesouth,southbywest30°tosouthbyeast30°;

3Inthewest,westbynorth30°(including)towestbysouth60°(including);

4Intheeast,eastbynorth30°(including)toeastbysouth60°(including);

3.2.7TransparentareaontheroofofCategoryApublicbuildingsmustnotbegreaterthan20%ofthetotalroofarea.Otherwise,trade-offmustbecarriedoutaccordingtothemethodspecifiedinthisstandard.

3.2.8Effectiveventilationandairchangeareaofsinglefacadeexternalwindow(includingtransparentcurtainwall)shallmeetthefollowingrequirements:

1Operablesashshallbearrangedontheexternalwindow(includingtransparentcurtainwall)ofCategoryApublicbuildings,anditseffectiveventilationandairchangeareaisnotsuggestedtobelessthan10%oftheexternalwallareaoftheroom;ventilationandairchangeequipmentshallbearrangedifitisimpossibletoarrangeoperablesashduetorestrictionsofconditionsfortransparentcurtainwall.

2EffectiveventilationandairchangeareaofexternalwindowofCategoryBpublicbuildingsisnotsuggestedtobelessthan30%ofthewindowarea.

3.2.9Effectiveventilationandairchangeareaofexternalwindow(includingtransparentcurtainwall)shallbeareaofoperablesashorventilationinterfaceareawhenwindowisopen,whicheverissmaller

3.2.10Stormporchshallbearrangedfortheexternaldoorsofbuildingsinseverecoldzone;forthebuildingsincoldzone,Stormporchordouble-layerexternaldoorsshallbearrangedfortheexternaldoorstowardtheprevailingwinddirection,Stormporchorothermeasuresisolatingcoldblastissuggestedtobearrangedforotherexternaldoors;asforbuildingsinhotsummerandcoldwinterzone,hotsummerandwarmwinterzoneandtemperatezone,thermalinsulationmeasuresshallbetakenfortheexternaldoors

3.2.11Buildingatriumshalltakefulladvantageofnaturalventilationforcooling,wheremechanicalairexhaustdevicemaybearrangedtostrengthennaturalairsupply.

3.2.12Buildingdesignshalltakefulladvantageofnaturaldaylight.Inthelocationswherenaturaldaylightfailstomeettheilluminationrequirements,lightguiding,reflectingandotherdevicesaresuggestedtobeadoptedtointroducenaturaldaylightintotherooms.

3.2.13VisiblelightreflectanceoftheinternalsurfacesintheroomswherepeoplestayforlongissuggcstcdtomcctthcrcquircmcntsspccificdinTable3.2.13.

·7·

Table3.2.13VisibleLightReflectanceoftheInternalSurfacesintheRoomswherePeopleStayforLong

Locationsofsurfacesintherooms

Visiblelightreflectance

Ceiling

0.7～0.9

Wallsurface

0.5～0.8

Groundsurface

0.3～0.5

3.2.14Elevatorsshallhavethefunctionsofenergyefficiencyoperation.Groupcontrolmeasuresshallbetakenwheretwoormoreelevatorsarearrangedcentralized.Elevatorsshallhavethefunctionsofautomaticswitchtoenergyefficiencyoperationmodeifthereisnoexternalcallandnopresetcommandintheelevatorcarwithinaperiodoftime.

3.2.15Theescalatorandmovingsidewalkshallhavethefunctionsofunloadedsuspendandslowspeedoperation.

3.3BuildingEnvelopeThermalDesign

3.3.1Accordingtoclimatezonesofbuildingthermaldesign,buildingenvelopethermalperformanceofCategoryApublicbuildingsmustmeettherequirementsofTables

3.3.1.1

～3.3.1-6respectively.Trade-offmustbecarriedoutaccordingtothemethodspecifiedinthisstandardifitfailstomeettherequirementsofthisarticle.

Table3.3.1-1LimitsofBuildingEnvelopeThermalPerformanceof

CategoryAPublicBuildingsinSevereColdZonesAandB

Buildingenvelopeparts

Shapefactor≤0.30

0.30<Shapefactor≤0.50

HeattransfercoefficientK[W/(m2·K)]

Roofing

≤0.28

≤0.25

Externalwall(includingnon-transparentcurtainwall)

≤0.38

≤0.35

Overheadoroverhangingfloor-slabwithbottomsurfacecontactingoutdoorair

≤0.38

≤0.35

Floorslabbetweenundergroundgarageandheatingroom

≤0.50

≤0.50

Partitionwallbetweennon-heatingstaircaseandheatingroom

≤1.2

≤1.2

Singlefacadeexternal

window(including

transparent

curtainwall)

Windowtowallratio≤0.20

≤2.7

≤2.5

0.20<Windowtowallratio≤0.30

≤2.5

≤2.3

0.30<Windowtowallratio≤0.40

≤2.2

2.0

0.40<Windowtowallratio≤0.50

≤1.9

≤1.7

0.50<Windowtowallratio≤0.60

1.6

≤1.4

0.60<Windowtowallratio≤0.70

≤1.5

≤1.4

0.70<Windowtowallratio≤0.80

≤1.4

≤1.3

Windowtowallratio>0.80

≤1.3

1.2

Transparentpartontheroof

(transparentareaontheroof≤20%)

≤2.2

Buildingenvelopeparts

ThermalresistanceofinsulationmateriallayerR[(m2·K)/w]

Surroundingground

≥1.1

Externalwallofheatingbasementincontactwithsoil

≥1.1

Deformationjoint

(inthecaseofintcrnalinsulationoftwosidewalls)

≥1.2

·8·

Table3.3.1-2LimitsofBuildingEnvelopeThermalPerformance

ofCategoryAPublicBuildingsinSevereColdZoneC

Buildingenvelopeparts

Shapefactor≤0.30

0.30<Shapefactor≤0.50

HeattransfercoefficientK[W/(m2·K)]

Roofing

≤0.35

≤0.28

Externalwall(includingnon-transparentcurtainwall)

≤0.43

≤0.38

Overheadoroverhangingfloor-slabwith

bottomsurfacecontactingoutdoorair

≤0.43

≤0.38

Floorslabbetweenundergroundgarageandheatingroom

≤0.70

≤0.70

Partitionwallbetweennon-heatingstaircaseandheatingroom

≤1.5

≤1.5

Singlefacadeexternal

window(including

transparent

curtainwall)

Windowtowallratio≤0.20

≤2.9

≤2.7

0.20<Windowtowallratio≤0.30

≤2.6

≤2.4

0.30<Windowtowallratio≤0.40

≤2.3

≤2.1

0.40<Windowtowallratio≤0.50

≤2.0

≤1.7

0.50<Windowtowallratio≤0.60

≤1.7

≤1.5

0.60<Windowtowallratio≤0.70

≤1.7

≤1.5

0.70<Windowtowallratio≤0.80

≤1.5

≤1.4

Windowtowallratio>0.80

≤1.4

≤1.3

Transparentpartontheroof(transparentareaontheroof≤20%)

≤2.3

Buildingenvelopeparts

ThermalresistanceofinsulationmateriallayerR[(m2·K)/W

Surroundingground

≥1.1

Externalwallofheatingbasementincontactwithsoil

≥1.1

Deformationjoint(inthecaseofinternalinsulationoftwosidewalls)

≥1.2

Table3.3.1-3LimitsofBuildingEnvelopeThermalPerformanceofCategoryAPublicBuildingsinColdZone

Buildingenvelopeparts

Shapefactor≤0.30

0.30<Shapefactor≤0.50

Heattransfercoefficient

K[w/(m2·K)]

Solarheatgain

coefficientSHGC

(east,south,

west/north)

Heattransfercoefficient

K[W/(m2·K)]

SolarheatgaincoefficientSHGC

(east,south,west/north)

Roofing

≤0.45

≤0.40

Externalwall(includingnon-transparentcurtainwall)

≤0.50

≤0.45

Overheadoroverhangingfloor-slabwithbottomsurfacecontactingoutdoorair

≤0.50

≤0.45

Foorslabbetweenundergroundgarageandheatingroom

≤1.0

≤1.0

Partitionwallbetweennon-heatingstaircaseandheatingroom

≤1.5

—

≤1.5

Singlefacade

externalwindow

(including

transparent

curtainwall)

Windowtowallratio≤0.20

≤3.0

≤2.8

0.20<Windowtowallratio≤0.30

≤2.7

≤0.52/—

≤2.5

≤0.52/—

0.30<Windowtowallratio≤0.40

2.4

≤0.48/—

≤2.2

0.48/—

0.40<Windowtowallratio≤0.50

≤2.2

≤0.43/一

≤1.9

≤0.43/—

0.50<Windowtowallratio≤0.60

≤2.0

≤0.40/—

≤1.7

≤0.40/—

0.60<Windowtowallratio≤0.70

≤1.9

≤0.35/0.60

≤1.7

0.35/0.60

0.70<Windowtowallratio≤0.80

≤1.6

≤0.35/0.52

≤1.5

≤0.35/0.52

Windowtowallratio>0.80

≤1.5

≤0.30/0.52

≤1.4

≤0.30/0.52

·9·

Table3.3.1-3(continued)

Buildingenvelopeparts

Shapefactor≤0.30

0.30<Shapefactor≤0.50

HeattransfercoefficientK[W/(m2·K)]

Solarheatgain

coefficientSHGC

(cast,south,

west/north)

HeattransfercoefficientK[W/(m2·K)]

Solarheatgain

coefficientSHGC

(east,south,

west/north)

Transparentpartontheroof

(transparentareaontheroof≤20%)

≤2.4

≤0.44

≤2.4

0.35

Buildingenvelopeparts

ThermalresistanceofinsulationmateriallayerR[(m2·K)/w]

Surroundingground

≥0.60

Externalwallofheatingbasementwithairconditioner(wallincontactwithsoil)

≥0.60

Deformationjoint(inthecaseofinternal

insulationoftwosidewalls)

≥0.90

Table3.3.1-4LimitsofBuildingEnvelopeThermalPerformanceofCategory

APublicBuildingsinHotSummerandColdWinterZone

Buildingenvelopeparts

HeattransfercoefficientK[W/(m2·K)]

Solarheatgain

coefficientSHGC(east,south,

west/north)

Roofing

ThermalinertiaindexesofbuildingenvelopeD≤2.5

≤0.40

ThermalinertiaindexesofbuildingenvelopeD>2.5

≤0.50

Externalwall

(includingnon-transparent

curtainwall)

ThermalinertiaindexesofbuildingenvelopeD≤2.5

≤0.60

ThermalinertiaindexesofbuildingenvelopeD>2.5

≤0.80

Overheadoroverhangingfloor-slabwithbottomsurfacecontactingoutdoorair

≤0.70

Singlefacadeexternalwindow

(includingtransparent

curtainwall)

Windowtowallratio≤0.20

≤3.5

—

0.20<Windowtowallratio40.30

≤3.0

≤0.44/0.48

0.30<Windowtowallratio≤0.40

≤2.6

≤0.40/0.44

0.40<Windowtowallratio≤0.50

≤2.4

≤0.35/0.40

0.50<Windowtowallratio≤0.60

≤2.2

0.35/0.40

0.60<Windowtowallratio≤0.70

≤2.2

≤0.30/0.35

0.70<Windowtowallratio≤0.80

≤2.0

≤0.26/0.35

Windowtowallratio>0.80

≤1.8

0.24/0.30

Transparentpartontheroof(transparentareaontheroof≤20%)

≤2.6

≤0.30

Table3.3.1-5LimitsofBuildingEnvelopeThermalPerformanceofCategoryAPublicBuildingsinHotSummerandWarmWinterZone

Buildingenvelopeparts

HeattransfercoefficientK[W/(m2·K)]

Solarheatgain

coefficientSHGC

(east,south,

west/north)

Roofing

ThermalinertiaindexesofbuildingenvelopeD≤2.5

≤0.50

Thermalinertiaindevesofbuildingenv