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-1-无尘室天花板工程施工技术方案DUST－FREEROOMCEILINGGRIDEXECUTIONPLAN1.施工准备PreparationA.承包商须于施作前提出施工计划书，依送审规定送请设计单位及业主审核，确认无误后再行施工。Contractorshallproposeaworkexecutionplanpriortoworkcommencementandsubmitittothedesigninstitutionandtheownerforreviewpertheregulationsfordocumentationsubmissionandreview.Workmayonlybeinitiatedafterverificationoftheworkexecutionplan.B.施工计划书内容应包括：材料说明合格检测文件施工大样图施工步骤及与其它工程之配合计划。Theworkexecutionplanshallcover:Instructionsonmaterials,inspectioncertificate,constructiondrawings,constructionproceduresandschemeofcoordinationwithothertradesC．材料搬运堆放注意事项Precautionsformaterialhandlingandstorage材料出厂前须有适当之保护座绑。Materialsshallbefittedwithappropriateprotectivetie-wrapspriortoshipmentfromfactory货品需平均置放于运输器具上，并用缓冲材料保护与固定避免滑动，导致材料受挤压变形。Materialsorcommoditiesshallberestedhorizontallyontransportvehiclesandprotectedandsecuredwithbuffersagainstslidingthatmaycausedistortiontomaterialsduetobumpingorsqueezing.与业主或总工程师确认材料放置地点，不得任意置放，影响材料安全性及造成施工障碍。Consultandverifywiththeownerorthechiefengineerformaterialstagingarea.Arbitraryunloadingorstorageisprohibitedforpreventionofadverseaffecttosafetyperformanceofmaterialsandofpossiblehindrancetoconstructionprogress.材料以工程进度先后顺序放置整齐，并标示内容、规格。Materialsshallbeplacedinanorderlymannerinaccordancewiththeconstructionprogressscheduleandtaggedwithnames,sizesandspecifications.如放于室外，须请相关厂商会同讨论及确认。Outdoorstorage,ifunavoidable,shallbesubjecttoconsultationwithandconfirmationoftherelevantmanufacturers.2．材料要求MaterialRequirements2.1基本说明及整体构造GeneralinstructionsandoverallconfigurationsA.材料之规格、性能、品质均须依设计图上所列之说明、并符合规定标准。-2-Materialsshallcomplywiththeinstructionsinthedesigndrawingsinrespecttosizes,performancesandqualityandconformtothecodesspecified.B.承包商应于施作前，将施工计划书、原厂授权书及相关数据、送请设计单位及业主审核合格后，始得施工。Contractorshallsubmittheworkexecutionplan,authorizationoftheoriginalmanufacturerandpertinentdatatothedesigninstitutionandtheownerforreviewpriortoworkcommencement.Workmayonlybeinitiatedaftertheapprovalisobtained.C.安装标准模距尺寸1200mmx1200mm，厚度50mm；含盲板、骨架、悬吊材、接头、调整器、相关螺丝螺帽、及标准衬垫及孔塞材。Thestandarddimensionsforinstallationshallbe1200mmx1200mmand50mminthickness,inclusiveofblankpanels,framework,suspensionsandhangers,connectors,balancers,screwsandnuts,standardgasketsandopeningplugs.D.整体或任一单块盲板均不得产生振动或移动情况。Anyblankpanel,whetherintegralorindividual,shallnotproduceanyvibrationordisplacement2.2载重型天花板系统Load-bearingceilingsystemA.盲板Plenumblankpanel(1)采用t=1.5mm六折型，彩色烤漆镀锌钢板。Blankpanelsshallbeofcoloredgalvanizedsheetsteel,hex-reinforcedandt=1.5mm.(2)底材为双面热浸镀锌钢板。Thebasematerialshallbedouble-sidehot-dipgalvanizedsheetsteel.(3)表面烤漆膜厚50μm。正面漆采用高分子线性热硬化型多元聚酯涂料，2涂2烤；背面漆采用高防锈性环氧树脂涂料，(以上均须附原厂品质保证书及出厂证明书)。Thesurfacefilmthicknessshallbe50μm.Thefrontsideshallbecoatedwithpoly-moleculelinearhot-hardenedpolyesterintwocoatsandtwobakeswhilethebacksidecoatedwithhigh-performanceanti-corrosionepoxy-resin.(Theabovematerialsshallbeallprovidedwiththemanufacturers’qualitycertificates).(4)单片面材载重150kg/m2以上。Single-pieceweight-bearingcapacityshallbeover150kg/m2.(5)盲板制造反折角落处须点焊处理，附强度计算书。Thereflectioncornersofblankpanelsshallbespotweldedduringfabrication.Thestrengthcalculationformatshallbeattached.(6)烤漆颜色依业主指定。Thecoloroftheprotectivefilmshallbeasspecifiedbytheowner.B.骨架系统(T-BAR)(1)材质为铝合金挤型，尺寸为1200×1200。Ofextrudedaluminumalloymaterial,1200×1200indimension(2)表面经雾化阳极处理12μm以上。-3-Surfaceshallbeanodizedtoathicknessofover12μm.(3)单支每一M荷重300kgf时，变形量3.7m/m以下，荷重消失时变形量为0。DeformationofanindividualT-barshallbesmallerthan3.7m/munderaloadofmorethan300kgand0whentheloadisrelieved.(4)单点破坏强度1000kg以上。Single-pointbreaking-downstrengthshallbegreaterthan1000kg.(5)可轻易安装FFU,灯具等设备。CapableofaccommodatingFFU,lightfixturesandotherancillariesinaneasymanner.C.吊筋螺栓及吊杆Hangerboltsandrods(1)吊筋螺栓使用3/8¨规格，两端须有螺槽以利调整水平高度，外表需电镀处理；Hangerboltsare3/8withthreadslotsonbothendsforheightadjustment.Exteriorsurfacesshallbetreatedbyplating.(2)吊杆电镀处理，厚度2.0μm.以上，两端亦须有螺槽。Hangerrodsareplatedtoathicknessover2.0μmandmachinedwiththreadslotsonbothends.D.连接接头(1)直角、三向、十字接头皆采用铝合金精密压铸一体成型，表面阳极处理。Rightangle,three-wayandcrossconnectorsareallofaluminumalloycastpreciselyintointegralpiecesandthensurface-anodized.(2)最大负荷须达450kgf以上；抗压破坏强度1500kg以上，抗拉破坏强度738kg以上Themaximumloadbearingcapacitymustexceed450kgf,thebreakingdownstrengthover1500kgandthetensilestrengthover738kg.(3)外型尺寸误差0.1mm以下，目视端正挺直，不得有扭曲变形现象。Thetoleranceofoutsidedimensionsshallbebelow0.1mm.Mustbevisuallyupright,squareandfreeoftwistingordistortion.(4)可配搭加装消防洒水头、探测器、温湿度监测器穿管及相关电气管线接头。Capabletoaccommodatepenetratingpipingoffiresprinklers,detectorsandtemperature/humiditymonitorsandotherrelatingelectricalconduitconnectors.E.衬垫材(GASKETS)(1)厚度1.5mm，黑色高密度合成橡胶材质。1.5mminthickness,ofblackhigh-densitysyntheticrubbermaterial(2)单面布胶宽10mm带状。Single-sidetapeof10mminwidth(3)迫紧密贴于骨架，完成与盲板之间气密处理。Pressedtightagainsttheframeworkforair-tightnesstogetherwithblankpanels-4-3.施工要求Requirementsforworkexecution3.1准备工作：Preparationa.施工前应与无尘室隔间工程配合施工顺序及进度。Coordinatewithdust-freeroompartitioningworkforexecutionprocessandprogresspriortoworkcommencement.b.施工时天花板是否维持高度之水平，若不一致则应拆除重新施工。Checkceilingpan