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relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题,中国作为屹立在世界东方的大国,要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”,再到G20峰会,都体现出中国一个负责任的大国形象。建筑给排水及采暖工程质量控制措施第一条给水塑料管管道穿越楼板必须采取防渗漏措施。穿越处应采用C20细石砼分二次嵌缝(第一次为板厚的2/3,待达到50%强度后进行第二次嵌缝到结构层面),并用定型模具支设,确保其嵌灌密实。第二条敷设管段支撑应符合设计要求,其间距亦应符合DB13(J)23-2000《建筑给排水塑料管道工程技术规程》及CJJ/T29-98要求。给水管道安装完成后,应进行严格的水压试验及外观检查,同时应对管道进行冲洗、消毒(消毒液采用含20~30mg/l有效氯溶液)。第三条排水塑料管材宜采用硬聚氯乙烯(PVC-U)管材,且应按高度不大于4m设一道伸缩节。排水管道穿越楼板、屋面应做好防水措施,并应设止水环,板底应设置塑料装饰圈。立管支撑间距,管径为50㎜应不大于1.2m,管径大于等于75㎜的不得大于2m;横管按管径确定,但最大不得超过2m。第四条管道穿越墙体时,必须设置套管,套管内采用柔性材料填塞,表面应进行封闭处理。管道井的板顶标高应低于休息平台100mm,当管道井板标高与休息平台标高一致时,管道穿越墙体应采用聚氨酯防水做封闭处理并制作混凝土防水墩台。第五条给水管道采暖系统安装完成后必须按规定进行打压试验,试验时须由现场监理人员见证,填写有关试验记录。系统打压前,必须将系统中所有截门打开,不得遗漏,以确保试验准确。第六条下列管道及卫生器具须进行试验,并填写相关资料、经甲方或现场监理人员签字认可:1、±0.000以下埋地管道做灌水试验;relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题,中国作为屹立在世界东方的大国,要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”,再到G20峰会,都体现出中国一个负责任的大国形象。2、各种承压管道系统和设备应做水压试验;3、卫生器具须做满水和通水试验;4、给水系统应打开三分之一的配水点做通水试验;5、生活给水系统管到在交付使用前必须进行清洗和消毒。第七条采暖、给水水平管支架应采用∠20×4角钢加设套箍或定型卡箍,不得用立管卡具代替。在墙上固定管道支架应灌填M10水泥砂浆、细石砼或预制混凝土块固定,不得用木楔、钢钉等固定支架。第八条设置管道支架、吊架时,应充分利用已有的砼带、砼预制块或过梁进行固定;在楼板上安装吊架时应穿透楼板。第九条采暖管道安装前,应清除腔内留存焊渣,防止堵塞。第十条采暖管道主管道中供水管的开口应向下、回水管的开口应向上,管口不得平开。第十一条建筑物采暖入口处应设置平衡阀,户内系统设置过滤器。第十二条采暖及给水管道井内应设置锁闭阀及插卡式水表。第十三条采暖管道的弯曲应采取现场煨制的方法,不得使用弯头、三通等构配件。第十四条散热器安装距墙面宜为130㎜,固定暖气片的支架应有前后限位措施(可背衬角钢)。第十五条散热器水平支管长度大于1500㎜的,应设置水平支架。第十六条水暖、卫生器具安装应严格控制标高,严禁出现管道返坡、地漏超高等问题。第十七条卫生器具安装时,其与地面或墙体的连接应采用金属固定件安装牢固,金属固定件应进行防腐处理。卫生器具与金属固定件relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmetho
本文标题:建筑给排水及采暖工程质量控制措施
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