钻孔灌注桩钢筋笼制作与安装技术交底

'中国建筑第四工程局有限公司钻孔灌注桩钢筋笼制作与安装技术交底技术交底编号005工程名称贵阳花果园彭家湾危旧房棚户区改造项目E1区基坑边坡支护工程施工单位中国建筑第四工程局有限公司交底部位边坡支护工程工种钢筋工技术交底内容1、施工准备1、已做好图纸会审及设计交底工作。2、根据图纸会审、设计交底，编制施工方案，进行技术、环境、安全交底。3、根据工程进度要求，及时绘制加工图，提出加工计划。2、作业准备2.1技术准备施工图已到位，经过审核已澄清有关技术问题，技术人员已认真熟悉施工图纸、规范及技术标准。人员经培训合格后进场，特种工持证上岗。安全防护用品：穿绝缘鞋、戴绝缘手套和防护面罩或深色防护眼罩等已发放给操作人员，操作人员熟知使用方法。2.2材料准备钢筋已到达现场，其品种、级别和规格符合设计要求，并附有产品合格证、附件清单和有关材质报告单或检查报告，现场质检员已按要求进行外观检查，并按60t为验收批进行力学抽检。热轧圆盘条、热轧光圆钢筋、热轧带肋钢筋和余热处理钢筋的检验应符合下列规定：每批钢筋应由同一牌号，同一炉罐号、同一规格、同一交货状态组成，并不得大于60t。检查每批钢筋的外观质量。钢筋表面不得有裂纹、结疤和折叠；表面的凸块和其它缺陷度的深度和高度不得大于所在部位尺寸的允许偏差在外观经检查合格的每批钢筋中任选两根钢筋，在其上截取1组试样，每组试样各制试件，分别做拉伸（含抗拉强度、屈服点、伸长率）和冷弯试验当试样中有1个试验项目不符合要求时，应另取2倍数量的试件对不合格项目做第二次试验。当仍有1根试件不合格时，则该批钢筋应判为不合格。钢筋机械接头的检验应符合《钢筋机械连接通用技术规程》（JGJ107）规定。加工钢筋笼加强筋、箍筋模具和钢筋笼胎具，并经检查验收合格。对进场钢筋，做拉伸（抗拉强度、屈服点、伸长率）和冷弯试验，并报检。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司钢筋检验数量以同牌号、同炉罐号、同规格、同交货状态的钢筋按每60t一批送检、报检，不足60t也按一批计每批必须抽检一次，不得有漏。钢筋的级别、直径是否与设计相符，查验出厂证明书及复试报告单是否符合有关标准要求。进行可焊性试验和焊接参数试验，取得相应的焊接参数。按材料表或技术交底书进行配料。钢筋加工棚，对场地进行硬化，修整完排水系统，规划场地。3、技术要求3.1所使用的机械及设备具有合格的出场证明及使用期限。3.2在大面积进行钢筋笼加工及安装前进行施工工艺试验，确定工艺参数。4、施工程序及工艺流程4.1施工程序主要施工程序为;原材料报检→可焊性试验→焊接参数试验→设备检查→施工准备→台具模具制作→钢筋笼分节加工→声测管安制→钢筋笼底节吊放→第二节吊放→校正、焊接→最后节定位。4.2工艺流程平整硬化、大棚搭设↓台模、模具放样施工↓钢筋检验、试验、报验→钢筋放样、下料↓声测管报验、安装→钢筋笼分节加工--→钢筋笼报检↓钢筋笼底节吊装↓第二节吊装对位、效验↓钢筋笼上下节焊接连接--→焊接质量检验、报检↓吊放最后一节并定位5、施工要求5.1钢筋储存5.1.1钢筋的外观检查合格后，应按钢筋品种、等级、牌号、规格及生产厂家分类堆放，不得混杂，且应设立识别标志。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司5.1.2钢筋在储存过程中应避免锈蚀和污染，宜在库内或棚内存放，露天堆置时，应架空存放，离地面不宜小于300mm，应加以遮盖。5.1.3检验合格的判定标准：如有一个试样一项指标不合格，则应另取双倍数量的试样进行复检，如仍有一个试样不合格，则该批钢筋判为不合格。5.2钢筋的除锈5.2.1加工方法钢筋均应清除油污和捶打能剥落的浮皮、铁锈。大量除锈，可通过钢筋冷拉或钢筋调直机调直过程中完成；少量的钢筋除锈，可采用电动除锈机或喷砂方法除锈，钢筋局部除锈可采取人工用钢丝刷或砂轮等方法进行。5.2.2注意事项及质量要求如除锈后钢筋表面有严重的麻坑、斑点等。已伤蚀截面时，应降级使用或剔出不用，带有蜂窝状锈迹钢筋，不得使用。5.3钢筋配料整形5.3.1配料单编制：钢筋应平直、无局部弯折，对弯曲的钢筋应调直后使用。调直可采用冷拉或调直机调直冷拉法多用于较细钢筋的调直，调直机多用于较粗钢筋的调直，采用冷拉法调直时应匀速慢拉，Ⅰ级钢筋冷拉率应≦2﹪，牌号钢筋冷拉率应≦1﹪.用调直机调直钢筋时，表面伤痕不应使截面面积减少5﹪以上。调直后的钢筋应平直、无局部弯折，冷拔低碳钢筋表面不得有明显擦伤。应当注意：冷拔低碳钢丝经调直机调直后，其抗拉清强度一般要降低10﹪～15﹪，使用前要加强检查，按调直后的抗拉强度选用。5.4钢筋下料5.4.1下料前认真核对钢筋规格、级别及加工数量，无误后按配料单下料。5.4.2钢筋弯曲成型前，应根据配料表要求长度分别截断，通常用钢筋切断机进行。在缺乏设备时，可用断丝钳、手动液压切断，对直径40mm以上的钢筋，可用氧乙块焰切断。在钢筋切断前，现在钢筋上用粉笔按配料单标注下料长度将切断位置做明显标记，切断时，切断标记对准刀刃将钢筋放入切割槽将其切断。5.4.3应将同规格钢筋根据不同长短搭配、统筹排料；一般先断长料。后断短料，一减少短头和损耗。避免用短尺量长料，防止产生累计误差，应在工作台上标出尺寸、刻度，并设置控制断料尺寸用的挡板。切断过程中如发现劈裂、缩头或严重的弯头等，必须切除，切断后钢筋断口不得有马蹄形或起弯等现象，钢筋长度偏差不得小于±10mm5.4.4钢筋半成品宜在加工棚内集中加工。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司5.5钢筋的弯曲成型5.5.1加工方法钢筋的弯曲成型多用弯曲机进行，在缺乏设备或少量钢筋加工时，可用手工弯曲成型，系在成型台上用摇扳子每次弯4～8根直径8mm以下钢筋，或用扳铁扳和扳子。可弯直径32mm以下钢筋，当弯直径28mm以下钢筋时，可用两个扳柱加不同厚度钢套，钢筋扳子口直径应比钢筋直径大2mm。曲线钢筋成型，可在原钢筋弯曲机的工作中央，放置一个十字架和钢套，另在工作盘四个孔内插上短轴和成型钢套与中央钢套相切，钢套尺寸根据钢筋曲线形状选用，成型时钢套起顶弯作用，十字架则协助推进。螺旋形钢筋成型，小直径可用手摇滚筒成型；较粗钢筋。可在钢筋弯曲机的工作盘上设一个型钢制成的加工圆盘，盘外直径相当于需加工螺旋筋的内径，插孔相当于弯曲机扳柱间距，使用时将钢筋一头固定，即可按一般钢筋弯曲加工方法弯成所需的螺旋形钢筋。钢筋的弯制和末端弯钩均应符合设计要求。箍筋的末端应作弯钩，当弯钩的形式为180°，弯曲直径应大于受力钢筋直径且不小于箍筋直径的2.2倍；弯钩平直部分的长度，不应小于箍筋直径的120倍。5.2.2注意事项及质量要求钢筋弯曲时应将个弯曲点位置划出，划线尺寸应根据不同弯曲角度和钢筋直径扣除钢筋弯曲调直值。划线应在工作台上进行，如无划线台而直接以尺度量化线时，应使用长度适当的木尺接量，以防发生差错。第一根钢筋弯曲成型后，应与配料表进行复核，复核要求后再成批加工。成型后的钢筋要求形状正确，平面上浮无凹曲。弯点处无裂缝。其尺寸允许偏差为：全长±10mm，弯起钢筋起弯点位移20mm，弯起钢筋的起弯高度±5mm，箍筋边长±5mm，箍筋边长±5mm。5.6钢筋的连接接头5.6.1焊工必须经考试合格后持证上岗。钢筋焊接前，必须根据施工条件进行试焊，确定工艺参数，试样数量应与检查验收每批抽样数量要求相同。施工时，操作人员严格执行工艺参数，施工员、质量员对焊机参数、接头质量随机抽样，确保焊接过程监控到位，焊接接头检测由监理工程师见证抽样送检。5.6.2钢筋电弧焊所用焊条牌号应复核设计要求，其性能应符合现行国家标准《碳钢焊条》（GB/T5117-1995）或《低合金钢焊条》（GB/T5118-1995）的规定。5.6.3主筋焊接接头的设置要避开弯曲处，距弯曲点的距离不得小于10d，同一根钢筋尽量少设接头。5.7钢筋笼加工成型5.7.1characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司加工钢筋笼胎具：用槽钢和钢板焊成组合胎具，每组胎具由底梁、底梁端部大样板、加强筋位置弧板三部分构成。底梁采用两根槽钢，槽钢间距50cm左右，之间用钢筋或角钢焊接；底梁一端垂直焊接一块110cm×110cm的钢板，厚不小于0.5mm；在大样板上用油漆绘出加强筋外轮廓及每根0主筋的位置；在底梁上按每节钢筋骨架加强箍筋数量和位置设立弧形板胎具，弧形板采用10mm钢板，弧形板胎具按加强筋外缘弧长的三分之一长设置，弧形胎具上对应大样板主筋位置设置凹槽，校正无误后与底梁焊接。将加强箍筋就位于每道弧板胎具的同侧，按弧形胎膜的凹槽摆焊主筋和箍筋，弧形胎膜上的主筋全部焊完后，滚动钢筋骨架至下一段三分之一弧，如此往复，直至全部焊完。滚出钢筋骨架，然后吊起骨架搁于支架上，套入盘筋，按设计位置布置好螺旋筋并绑扎于主筋上，点焊牢固，最后安装和固定声测管。第一个骨架加工时，每焊完三分之一弧至下一段弧时，要与大样板上的主筋位置核对，焊完后，核对无误，可成批加工。具备条件后可使用钢筋笼成型专用设备进行加工。5.7.2钢筋笼加工场地分节制作，根据具体吊装能力确定每节长度，加工必须按照钢筋配料单或技术交底进行，严禁随意、私自更改制作方式。下料前，必须先进行拉直，然后对号加工下料，并分类标时排放。钢筋笼制造在专用胎具上或台架上进行，钢筋的间距必须至少采用两个间距定位架来进行定位，禁止工人手扶固定间距，保证其主筋和箍筋的轴线、平顺度和间距符合设计要求规范误差要求。5.7.3螺旋筋的安装螺旋筋设置在主筋外侧，螺旋箍筋缠绕要紧密。防止离鼓，采用绑扎或梅花形点焊与主筋连接成型。螺旋筋与主筋连接先点焊在主筋上，然后用绑丝绑扎。钢筋绑扎采用18～22号铁丝，绑丝采用一正一反交叉绑扎的方式，每一扎均要勒紧。螺旋钢筋采用标准卡具进行安装和检查。5.7.4加强筋设于主筋内侧，第一道加强筋距承台底40cm，最下一道设于钢筋底面以上10cm，中间部分自上而下每2m一道，零数可在最下二段平均分配，但不得大于2.5m。加强筋与主筋的连接采用电弧焊，必须焊牢，要求严格控制电流大小，不得烧伤主筋。5.8钢筋笼出场报检成型后的钢筋笼自检合格后报监理验收，验收合格后挂牌置于场地处存放。5.9钢筋笼运输与现场堆放钢筋笼在搬运和吊装时，需做好保护措施避免钢筋笼变形。吊装采用吊车，吊点设两个，在吊装过程中要轻吊轻放。运输采用平板车运输至工点，用吊机将钢筋笼吊入孔中。钢筋笼吊装入孔要将钢筋骨架中心与桩孔对中后插入孔内，下放过程中要保持钢筋笼垂直。5.10钢筋笼下沉与连接5.10.1characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司沉放时要采用逐段吊装逐段沉放的方法，已插入的钢筋笼，利用钢管或型钢通过其架立筋将该段承托临时固定。上段钢筋笼由吊车临时吊住呈悬吊状态，上下两段对中使其成为一条直线后，找正主筋位置并利用吊坠由前后左右控制垂直度，调整完成后进行临时焊接，焊缝长度为10d。焊接时间不超过2h，必要时，采用多人对称同时进行焊接。电焊工要持证上岗，严禁漏焊。5.10.2两节钢筋笼连接时，50﹪的钢筋接头需错开，错开长度不小于35d，并不小于50cm。连接时，上下两节的钢筋笼主筋轴心必须对齐。连接完成后，按要求补焊箍筋使其形成整体。上下节对接完成后，拔掉承托用的钢管或型钢，继续沉放钢筋笼，为避免钢筋笼撞孔壁，要缓慢沉放，并将吊索置于钢筋笼轴线上，不使其摇晃。5.10.3钢筋笼采用圆形水泥砂浆垫块或成品塑料块。垫块对称布置且每圈不少于4处，竖向没2m布置一道。检查合格后监理工程师会签隐蔽工程验收记录。在钢筋笼上端均匀设置吊点，其吊点要有足够的强度和刚度，保证钢筋笼在起吊时不变形。露出承台部分的钢筋均采用塑料包裹措施进行防护。在孔口加强段竖向每1m对称布置一圈，每圈不少于四4个，保证主筋净保护层达到7cm的设计标准。5.10.4钢筋笼入孔吊环必须保证4根，要根据控制平台标高位置，准确计算并确定长度及焊接位置，确保钢筋笼位置标高准确。吊环钢筋的搭接长度及焊缝采用准焊缝。固定钢筋笼的横担要有足够的强度及刚度，横担支点要平，卡环要牢。杜绝钢筋吊环高程偏差、横担支点不平及卡环不牢造成钢筋笼整体倾斜及上浮的现象。钢筋笼安放要对准孔位，其顶面标高和平面位置的误差均不得大于10cm就位后要牢固定位，以免在灌注混凝土过程中发生掉笼或浮笼现象。5.11声测管制造和安装5.11.1声测管采用钢管，内孔径为50mm、厚壁为3.0mm。其数量及布置按按设计要求均设置3根。5.11.2声测管在钢筋笼制造场预先安装在已成型的钢筋笼上，声测管要下端封闭，上端加盖，管内无异物；声测管采用绑扎方式进行，预防连接处断裂或堵管现象；连接处要光滑过度，不漏水；管口要高出桩顶100mm以上，且各声测管管口高度要一致，成型后的声测管要垂直、相互平行，防止堵塞现象。5.12综合接地设施安装按照设计文件规定做好综合接地设施制作和预埋件安装工作，确保综合接地各项检测指标合格后方可埋设。钻孔桩每根桩要选2根最长的主钢筋作为接地钢筋，并在制作钢筋笼时用红油漆标志，并采用包裹保护措施，桩基接地与承台接地圈筋采用“L”形式焊接，采用双面焊，长度不小于10d。6、劳动力组织characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司6.1劳动力组织方式：采用架子队组织模式。6.2施工人员应结合施工方案。机械、人员组合、工期要求进行合理配置。7、材料要求7.1钢筋进场时，应附有质量出场证明书或出场检验报告单，应进行外观检查，并将外观检查不合格的钢筋及时剔除。7.2核对每捆或每盘钢筋上的标志是否与出场质量证明书的型号、批号相同，规格及型号是否符合设计要求。8、设备机具配置主要施工机具设备对焊机及配套的对焊平台、调直机、除锈机或钢丝刷、钢筋切割机、钢筋弯曲机、电焊手套、绝缘鞋、防护深色眼镜，其数量配备根据加工厂大小确定。9、质量控制及检验9.1质量控制9.1.1钢筋原材料质量：钢筋进场后必须按照规定的频次检验合格后方可使用，不合格材料禁止使用。9.1.2钢筋接头质量：钢筋焊接质量频次检验合格，钢筋焊接接头符合规范及设计的规定。9.1.3钢筋笼主筋间距：严格控制主筋间距，间距偏差控制在±0.5d以内。9.1.4钢筋笼保护层厚度：按照施工图的要求均匀布置好混凝土垫块。确保桩体保护层符合设计要求。9.1.5钢筋笼标高和平面定位：钢筋笼安装定位时，根据护筒标高准确计算吊筋长度，并根据护筒埋设时的偏差合理调整钢筋笼的位置。9.1.6锌洛涂层钢筋涂层厚度符合设计要求，且在使用过程中严禁损坏涂层。9.1.7遇有声测管安装时，钢筋骨架必须有足够的刚度保证声测管不变形，且连接应牢固可靠。，防止脱扣。9.1.8钢筋存放现场时，采用等高度方木垫高，确保钢筋顺直不变形。遇有灰尘污染或雨水时必须覆盖。9.1.9钢筋笼吊装及运输过程中要轻拿轻放，防止钢筋笼变形。9.1.10钢筋笼运输过程中，防止保护层掉落。9.2质量检验9.2.1主控项目1原材料characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司1）钢筋进场时，必须对其质量指标进行全面检查并按批抽取试件做屈服强度、抗拉强度、伸长率和冷弯试验，其质量应符合国家现行标准《钢筋混凝土用热轧光圆钢筋》（GB13013）、《钢筋混凝土用热轧带肋钢筋》(GB1449)和《低碳钢热轧圆盘条》（GB/T701）等的规定和设计检验数量：以同牌号、同炉罐号、同规格、同交货状态的钢筋，每60t为一批，不足60t也按一批计。施工单位每批抽检一次;监理单位见证取样检测或平行检验抽检次数为施工单位抽检次数的20﹪或10﹪，但至少一次。检验方法：施工单位全部检查质量证明文件并按批进行抽样做屈服强度、抗拉强度、伸长率和冷弯试验；监理单位全部检查质量证明文件、试验报告并随机抽样进行见证取样检测或平行检验。环氧涂层钢筋的涂层检验应符合规范要求。3）钢筋保护层垫块材质应符合设计要求。当设计无具体要求时，垫块的抗压强度不应低于结构本体混凝土的强度设计。检验方法：按规定方法试验。2钢筋加工钢筋的加工应符合设计要求。当设计未提出要求时，应符合下列规定：受拉热轧光圆钢筋的末端应做180°弯钩，其弯曲直径dm不得小于钢筋直径的2.5倍，钩端应留有不小于钢筋直径的3倍的直线段（图9.2.1-1）受拉热轧光圆和带肋钢筋的末端，当设计要求采用直角形弯钩时，其弯曲直径dm不得小于钢筋直径的5倍，钩端应留有不小于钢筋直径3倍的直线段（图9.2.1-2）。弯起钢筋应弯成平滑的曲线，其弯曲半径不得小于钢筋直径的120倍（光圆钢筋）或12倍（带肋钢筋）（图9.2.1-3）用低碳钢热轧圆盘条制成的箍筋，其末端应做成不小于90°的弯钩，有抗震等特殊要求的结构应做135°或180°的弯钩（图9.2.1-4）；弯钩端直线段的长度，一般结构不得小于箍筋直径的5倍。有抗震等特殊要求的结构，不得小于箍筋直径的10倍。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司图9.1.2-1180○弯钩图9.1.2-2直角形弯钩9.1.2-3弯起钢筋图9.1.2-4箍筋末端弯钩检验数量：施工单位按钢筋编号各抽检10﹪，且各不少于3件；监理单位平行检验数量为施工单位抽检数量的10﹪，且各不少于一件。检验方法：尺量。3钢筋连接1）纵向受力钢筋的连接方式必须符合设计要求。检验数量：施工单位、监理单位全部检查。检验方法：观察。2）钢筋接头的技术要求和外观质量应符合相关检验标准的规定。钢筋焊接接头应按批抽取试件做力学性能检验，其质量必须符合现行行业标准《钢筋焊接及验收规程》（JGJ18）的规定和设计要求。承受静力荷载为主的直径为28～32mm带肋钢筋采用冷挤压套筒连接接头时，应按批抽取试件做力学性能检验，其质量必须符合现行行业标准《带肋钢筋套筒挤压连接技术规程》（JGJ108）的规定和设计要求。检验数量：钢筋接头的外观质量，施工单位、监理单位全部检查。焊接接头的力学性能检验以同级别、同规格、同接头形式和同一焊工完成的每200个接头为一批，不足200个也按一批计。冷挤压套筒连接接头的力学性能检验以同等级、同规格和同接头形式的没200个接头为一批，不足200个也按一批计。施工单位每批抽检一次；监理单位见证取样检测次数为施工单位抽检次数的20﹪，但至少一次。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司检验方法：钢筋接头外观检查，施工单位、监理单位观察和尺量。焊接接头和冷挤压套筒连接接头力学性能检验，施工单位做拉伸试验，闪光对焊接头增做冷弯试验；监理单位检查力学性能试验报告并进行见证取样检测。4钢筋安装1）安装的钢筋品种、级别、规格和数量必须符合设计要求。检验数量：施工单位、监理单位全部检查。检验方法：观察和尺量。2）钢筋保护层垫块位置和数量应符合设计要求。当设计无具体要求时，构件侧面和底面的垫块数量不应少于4个∕㎡。检验数量：施工单位、监理单位全部检查。检验方法：观察和尺量。3）当架力和绑扎环氧涂层钢筋时，不得使用无涂层的普通钢筋和金属丝。环氧涂层钢筋与无涂层的普通钢筋之间不得有电连接。检验数量：施工单位、监理单位全部检查。检验方法：观察和测量。4）在整个施工过程中，应随时检查环氧涂层钢筋的涂层损伤缺陷情况，每米环氧涂层钢筋上小于25mm2的涂层缺陷的总面积不得大于钢筋表面积的0.1﹪.符合修补条件的应按规定及时修补，不符合修补条件的不得再修补使用。检验数量：施工单位、监理单位全部检查。检验方法：观察和尺量。9.2.2一般项目1、原材料钢筋应平直、无损伤、表面无裂纹、油污、颗粒状或片状老锈。检验数量：施工单位全部检查。检验方法：观察。2、钢筋加工钢筋加工允许偏差和检验方法应符合表9.2.2-1的规定。表9.2.2-1钢筋加工允许偏差和检验方法序号名称允许偏差（mm）检验方法L≤5000L＞50001受力钢筋全长±10±20尺量2弯起钢筋的弯折位置203箍筋内净尺寸±3注：L为钢筋长度（mm）。characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司检验数量：施工单位按钢筋编号各抽检10﹪，且各件不少于3件。3、钢筋连接钢筋接头应设置在承受应力较小处，并应分散布置。配置在“同一截面”内受力钢筋接头的截面面积，占受力钢筋总截面面积的百分率，应符合设计要求。当设计为提出要求时，应符合下列规定：焊接接头在受弯构件的受拉区不得大于50﹪，轴心受拉构件不得大于25﹪；绑扎接头在构件的受拉区不得大于25﹪，在受压区不得大于50﹪；钢筋接头应避开钢筋弯曲处，距弯曲点扥距离不得小于钢筋直径的10倍；同一根钢筋上少设接头。“同一截面”内，同一根钢筋上不得超过一个接头。注：两焊接接头在钢筋直径的35倍范围内且不小于500mm以内、两绑扎接头在1.3倍搭接长度范围内且不小于500mm以内，均视为“同一截面”。检验数量：施工单位全部检查。检验方法：观察和尺量。4、钻（挖）孔桩钢筋骨架的允许偏差和检验方法应符合表9.2.2-2的规定。表9.2.2-2钻（挖）孔桩钢筋骨架的允许偏差和检验方法序号项目允许偏差检验方法1钢筋骨架在承台底以下长度±100mm尺量检查2钢筋骨架直径±20mm3主钢筋间距±0.5d尺量检查不少于5处4加强筋间距±20mm5箍筋间距或螺旋筋间距±20mm6钢筋骨架垂直度1﹪吊线尺量检查注：d为钢筋直径（mm）检验数量：施工单位全部检查。针对性交底characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11 中国建筑第四工程局有限公司交底人签名职务交底时间被交底人签名characteristicsanddurationcontrolrequiresadequatelabour,andestablisharewardsystem,emulation,goodteamwork,lifeandotherlogisticalsupport,maintainstrongworkethicandsenseofresponsibility,ensurethesuccessfulcompletionoftasks.Tostrictlyofqualitycontrol,ensureoncesurvived,guaranteeplansofimplementationincreased"fourtechnology"ofapplication,improveconstructionqualityefficiencylifewaterusedPP-Rpipeline,hotmeltconnection,thisapipeofusing,inisbigdegreeShangovercomehaspasttraditionalpipelineexistsasusinglifeshort,andinsulationperformancepoor,andinstallationtechnologyrequirementshigh,andinstallationcosthighofproblem,hasresistancecorrosion,andresistancesmall,andheat,andresistancepressure,andlifelong,andinsulationenergy-saving,andweightlight,andinstallationreliablesimple,advantages.Duetoeaseofinstallation,reducedlabourintensityatthesametime,improvesthespeedofconstruction.Duetoinstallationandreliable,reducingsecondaryconstructionworkload,reducingcostswhileensuringconstructionaccordingtoschedule.Constructionofthefirstsectionoftheprogrammedescriptionaccordingtotheconstructioncontractfortheconstructionofelectricalengineering,ourscopeforlowvoltagedistributionandallfutureprojects,publicstaircasesoflightingengineering;thecontractscopewithembeddedstructurereservedforallelectricalengineeringworkandweakpowerdistributionboxfortheinstallation.ConstructionprocessconstructionQianprepared→tiecivilpreburied,andreserved→wallShangdistributiontubeand11'