Chasing,passing,hitting,shootingandcheering...Theicehockeycompetitionofthe2022BeijingWinterOlympicGamesstartsasscheduled.TopicehockeyplayersfromallovertheworldcompeteinthenewlyrenovatedandexpandedNationalStadium-"icesail".
Althoughitisthereconstructionandexpansionofexistingvenues,the"icesail"traininghallhasaddedmanyiceandsnowelementsoftheWinterOlympics.Fromtheoutside,itlookslikeacrystalclear"iceCastle"likeiceflowersblooming,whichmakestheatmosphereoftheWinterOlympicGamesmoreandmorestrong.
Inordertoachieveperfectvisualeffect,theprojectteamofChinaConstructionSecondEngineeringBureauunderCSCECcreativelyappliedtheembossedglassusedonlyforinteriordecorationinthepasttotheoutercurtainwall.Thetotalareaofthecurtainwallis2245squaremeters,andthetotalconsumptionofembossedglassis700pieces,about196tons,ofwhichthelargestembossedglassis8squaremetersandweighsmorethan700kilograms.
Ifyouwanttopresenttheunevenfacadeeffectof"iceCastle",theembossedglassoftheoutercurtainwallmustbeinstalledfrombottomtotop,concavefirstandconvexlater,andtheconstructiongapshouldalwaysbekeptwithin2cmtoavoidglasscollision.Aftertwomonthsofactualcombatdrills,theteamofChinaConstructionSecondBureauunderCSCECcaninstallthreepiecesofmorethan700kgofembossedglassinonedayassoonaspossible,andtheinstallationaccuracyiscontrolledwithin3mm.Inaddition,ChinaConstructionSecondEngineeringBureauunderCSCEChasalsodevelopedanewpointglassconnectionsystemtoincreasethenumberofglassfixingpointsandreducethesizeofconnectingparts.Aftertheglasswith"snowflake"textureisinstalled,combinedwithlightirradiation,thelighttransmissioneffectof"icebrickcastle"canbedisplayedtothegreatestextent.
Whilepursuingexquisiteappearance,thenationalstadiumalsomakestheconceptofgreenandlow-carbonintoreality.Theprojectteammadeanotherlayerofinnercurtainwallinsidetheouterembossedglasscurtainwall,usingthelatestlowradiationtemperedglasstoplaytheroleofheatinsulation,heatpreservationandsoundinsulation,greatlyreduceultravioletrays,reduceenergyconsumption,energyconservationandemissionreduction.
QualityserviceignitesthepassionofWinterOlympics
TheNationalStadiumisequippedwithtwo1800squaremeterstandardicerinks,onefortheicehockeyeventofBeijing2022WinterOlympicGamesandtheotherforthedailytrainingofathletes.Astheworld'stopevent,icehockeyintheWinterOlympicshasverystrictrequirementsforice.Asthemainconstructionunitoficemakingproject,CSCECinstallationunderCSCECmustfirstensurethattheflatnessof11structurallayersundertheiceiscontrolledwithin5mminordertomeettherequirementsof"flat,brightandslippery"ontheicesurface.Facingthedifficulties,theprojectteamintroducedSwisslaserpaversandlaserrangingandotherdetectionequipment.Duringtheconstructionprocess,theicesurfacestructurelayerwasverifiedlayerbylayerandcorrectedatanytimetoensurethattheicesurfacestructurewasflatandflawless.
CSCEC'sCSCECinstallationprojectteamcompletedtheconstructionoficesurfacestructurelayeroftwoicerinksinonly60days.Inordertoachievethe"bright"effectontheicesurface,theprojectteamneedstoensurethatthespacingoficemakingpipelinesisuniform,thespacingofpipelinesistoodenseandsparse,orthepipelinesareslightlycloseandfarfromthestructurallayer,whichcannotformthebrighteffect.Finally,theprojectteamrealizedtheuniformlayingofthecolddiskpipelinethroughthefinishedM-shapedsupport,sothatthedistancebetweentheupper,lower,leftandrightofthepipelinewasconsistent.
Inadditiontothehigh-qualityicesurface,thefunctionalservicesofthevenuealsoshowthestrengthandconfidenceofBeijinginhostingtheWinterOlympicGames.Onthebasisofnotchangingtheoriginallightingstructureofthevenue,ChinaConstructionSecondEngineeringBureauunderCSCECnotonlyensuresthecomfortofathletesduringthecompetition,butalsosetsofftheexcellentatmosphereofthevenuethroughdigitalsimulation,lampprefabricationangledesignandon-siteaccuratepositioningandinstallation.Inaddition,theprojectteamhasnewlyinstalledacentralcurvedbucketscreentoprovideaclearperspectivefortheaudienceinalldirections.ThebucketscreeniscomposedoffourlargeLEDscreens4.5mhighand8mwide,andtheinteriorisspeciallyinlaidwithfoursmallscreens2.5mwideand1.5mhigh.Thevenueisalsoequippedwithaprefabricateddressingroom,whichcanbesplit,reorganizedandreusedafterthegame,witharecyclingrateof95%.
Duringthe2022WinterOlympicGamesandwinterParalympicGamesinBeijing,CSCEC'ssecondconstructionbureauandCSCECinstallationareequippedwith28managersand77workerstoparticipateinthesupportservicesoftheNationalStadium.Amongthem,ChinaConstructionSecondEngineeringBureauunderCSCECisresponsibleforcomprehensivelyensuringmorethan10systems,suchaspowersupplysystem,sitelighting,soundreinforcementsystem,securitysystem,fireprotectionsystem,ventilationandairconditioning,whileChinaConstructionInstallationNorthChinacompanyisresponsiblefor24-hourinspectionofmaintenanceandicemakingsystem,soastoensurecompletestaffing,cleardivisionoflaborandprofessionalproficiency,anddealwithemergenciesthatmayoccurduringthegameatanytime.
Afterthecompetition,theNationalStadiumwillmainlyundertakesportsevents,carryoutallkindsoficetrainingandotherpublicicefitnessactivities,andincreasetheoperationandcultivationofselfcreatedIPsportseventsandculturalactivities.Inthefuture,anationalgymnasiumwith"sports+culture+scienceandtechnology"innovationandintegrationwillbepresented.