地面砖(知识讲座).pdf

《地面砖(知识讲座).pdf》由会员分享，可在线阅读，更多相关《地面砖(知识讲座).pdf（9页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、技术交底记录2005 年月日鲁建 5 1 工程名称鑫苑城市之家 7楼分部工程基础分项工程名称：基础钢筋交底内容：此技术交底依据 GB50204-2002 编制1、施工准备(1 、作业条件A钢筋绑扎前，核对钢筋加工料表是否正确，并检查有无锈蚀现象，除锈后再运至绑扎部位。B做好放线工作，弹出柱、墙的位置线，并弹好钢筋位置线。(2)、材质要求A钢筋：级别、规格符合设计要求。质量符合现行标准要求。B2022 号火烧丝、水泥砂浆(塑料)垫块。(3)、主要机具A钢筋切断机、钢筋弯曲机、钢筋调直机、钢筋钩子、钢筋扳子、钢丝刷、断火烧丝铡刀。B墨斗、墨汁、小白线、粉笔。2、操作工艺放线并预检成型钢筋进场排钢筋

2、焊接接头绑扎柱墙插筋定位交接验收2.1、绑底板下层网片钢筋1)根据在防水保护层弹好的钢筋位置线，先铺下层网片的长向钢筋，钢筋接头尽量采用焊接或机械连接，要求接头在同一截面相互错开50，同一根钢筋在500mm 的长度内不得有两个接头。2)后铺下层网片上面的短向钢筋，钢筋接头尽量采用焊接或机械连接，要求接头在同一截面相互错开5O，同一根钢筋尽量减少接头。3)防止出现质量通病：由于底板钢筋施工要求较复杂，此处一定要注意钢筋绑扎接头和焊接接头按要求错开问题。4)绑扎加强筋：根据图纸设计依次绑扎局部加强筋。2.2、绑扎底板上层网片钢筋1)铺设上层铁马凳：马凳用剩余短料焊制成，马凳短向放置，间距1.2。2

3、)绑扎上层网片下层钢筋：先在马凳上绑架立筋，在架立筋上划好的钢筋位置线，按图纸要求，顺序放置上层网的下层钢筋，钢筋接头尽量采用焊接或机械连接，要求接头在同一截面相互错开 50，同一根钢筋尽量减少接头。3)绑扎上层网片上层钢筋：根据在上层下层钢筋上划好的钢筋位置线，顺序放置上层钢筋，钢筋接头尽量采用焊接或机械连接，要求接头在同一截面相互错开50，同一根钢筋尽量减少接头。4)绑扎暗柱和墙体插筋：根据放好的柱和墙体位置线，将暗柱和墙体插筋绑扎就位，并和底板钢筋点焊固定，要求接头均错开50，根据设计要求执行，设计无要求时，甩出底板面的长度45d 360，暗柱绑扎两道箍筋，墙体绑扎一道水平筋。5)垫保护

4、层：垫块底板下保护层为50mm，梁柱主筋保护层为30mm，外墙迎水面为50mm，外墙内侧及内墙均为20mm。保护层垫块间距为600mm，梅花型布置。6)成品保护：绑扎钢筋时钢筋不能直接抵到外墙砖模上，并注意保护防水。钢筋绑扎前，导墙内侧防水必须甩浆做保护层，导墙上部的防水浮铺油毡加盖红机砖保护，以免防水卷材在钢筋施工时被破坏。3、质量标准3.1、钢筋加工工程(1)主控项目1)钢筋进场时，应按现行国家标准钢筋混凝土用热轧带肋钢筋GB1499等的规定抽取试件作力学性能检验，其质量必须符合标准的规定。2)对有抗震设防要求的框架结构，其纵向受力钢筋的强度应满足设计要求；当设计无具体要求时，对一、二级抗

5、震等级，检验所得的强度实测值应符合以下规定：钢筋的抗拉强度实测值与屈服强度实测值的比值不应小于1.25；钢筋的屈服强度实测值与强度标准值的比值不应大于1.3。3)当发现钢筋脆断、焊接性能不良或力学性能显著不正常等现象时，应对该批钢筋进行化学成分检验或其他专项检验。4)受力钢筋的弯钩和弯折应符合以下规定：HPB235级钢筋末端应作1800弯钩，其弯弧内直径不应小于钢筋直径的2.5 倍，弯钩的弯后平直部分长度不应小于钢筋直径的3 倍；当设计要求钢筋末端需作1350弯钩时，HRB335级、HRB400级钢筋的弯弧内直径不应小于钢筋直径的4 倍，弯钩的弯后平直部分长度应符合设计要求；钢筋作不大于900

6、的弯折时，弯折处的弯弧内直径不应小于钢筋直径的5 倍。5)除焊接封闭环式箍筋外，箍筋的末端应作弯钩，弯钩形式应符合设计要求；当设计无具体文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10

7、C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C

8、2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1

9、H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G

10、10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D

11、7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3

12、D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2要求时，应符合以下规定：箍筋弯钩的弯弧内直径除应满足第4 条的规定外，尚应不小于受力钢筋直径；箍筋弯钩的弯折角度：对一般结构，不

13、应小于900；对有抗震等要求的结构，应为1350；箍筋弯后平直部分长度：对一般结构，不宜小于箍筋直径的5 倍；对有抗震等要求的结构，不应小于箍筋直径的10 倍。(2)一般项目1)钢筋应平直、无损伤，外表不得有裂纹、油污、颗粒状或片状老锈。2)钢筋调直宜采用机械方法，也可采用冷拉方法。当采用冷拉方法调直钢筋时，HPB235级钢筋的冷拉率不宜大于4，HRB335级、HRB400级和 RRB400级钢筋的冷拉率不宜大于是1。3)钢筋加工的允许偏差应符合下表的规定：钢筋加工的允许偏差项目允许偏差(mm)受力钢筋顺长度方向全长的净尺寸10 弯起钢筋的弯折位置20 箍筋内净尺寸5、钢筋安装工程(1)主控项

14、目1)纵向受力钢筋的连接方式应符合设计要求。2)在施工现场，应按国家现行标准钢筋机械连接通用技术规程JGJ107、钢筋焊接及验收规程 JGJ18的规定抽取钢筋机械连接接头、焊接接头试件作力学性能检验，其质量应符合有关规程的规定。3)钢筋安装时，受力钢筋的品种、级别、规格和数量必须符合设计要求。(2)一般项目1)钢筋的接头宜设置在受力较小处。同一纵向受力钢筋不宜设置两个或两个以上接头。接头末端至钢筋弯起点的距离不应小于钢筋直径的10 倍。2)在施工现场，应按国家现行标准钢筋机械连接通用技术规程JGJ107、钢筋焊接及验收规程 JGJ18的规定对钢筋机械连接接头、焊接接头的外观进行检查，其质量应符

15、合有关规程的规定。3)当受力钢筋采用机械连接接头或焊接接头时，设置在同一构件内的接头宜相互错开。纵向受力钢筋机械连接接头及焊接接头连接区段的长度为35 倍 d(d 为纵向受力钢筋的较大直径)且不小于500mm，凡接头中点位于该连接区段长度内的接头均属于同一连接区段。同一连接区文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7

16、C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D

17、1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1

18、G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8

19、D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P

20、3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5

21、J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1

22、P8D7C2段内，纵向受力钢筋机械连接及焊接的接头面积百分率为该区段内有接头的纵向受力钢筋截面面积与全部纵向受力钢筋截面面积的比值。同一连接区段内，纵向受力钢筋的接头面积百分率应符合设计要求；当设计无具体要求时，应符合以下规定：在受拉区不宜大于50；接头不宜设置在有抗震设防要求的框架梁端、柱端的箍筋加密区；当无法避开时，对等强度高质量机械连接接头，不应大于50；直接承受动力荷载的结构构件中，不宜采用焊接接头；当采用机械连接接头时，不应大于50。4)同一构件中相邻纵向受力钢筋的绑扎搭接接头宜相互错开。绑扎搭接接头中钢筋的横向净距不应小于钢筋直径，且不应小于25mm。1(11为搭接长度)，凡搭接接

23、头中点位于该连接区段长度内的搭接接头均属于同一连接区段。同一连接区段内，纵向钢筋搭接接头面积百分率为该区段内有搭接接头的纵向受力钢筋截面面积与全部纵向受力钢筋截面面积的比值。同一连接区段内，纵向受拉钢筋搭接接头面积百分率应符合设计要求；当设计无具体要求时，应符合以下规定：对梁类、板类及墙类构件，不宜大于25；对柱类构件，不宜大于50；当工程中确有必要增大接头面积百分率时，对梁类构件，不应大于50；对其他构件，可根据实际情况放宽。纵向受力钢筋绑扎搭接接头的最小搭接长度：根据现行国家标准混凝土结构设计标准GB50010的规定，绑扎搭接受力钢筋的最小搭接长度应根据钢筋强度、外形、直径及混凝土强度等指

24、标经计算确定，并根据钢筋搭接接头面积百分率等进行修正。为了方便施工及验收，给出了确定纵向受拉钢筋最小搭接长度的方法以及受拉钢筋搭接长度的最低限值及确定了纵向受压钢筋最小搭接长度的方法以及受压钢筋搭接长度的最低限值。5)在梁、柱类构件的纵向受力钢筋搭接长度范围内，应按设计要求配置箍筋。当设计无具体要求时，应符合以下规定：箍筋直径不应小于搭接钢筋较大直径的O.25 倍；受拉搭接区段的箍筋间距不应大于搭接钢筋较小直径的5 倍，且不应大于100mm；受压搭接区段的箍筋间距不应大于搭接钢筋较小直径的10 倍，且不应大于200mm；文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8

25、D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P

26、3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5

27、J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1

28、P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH

29、8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7

30、W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4

31、M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2当柱中纵向受力钢筋直径大于25mm 时，应在搭接接头两个端面外100mm 范围内各设置两个箍筋，其间距宜为50mm。图钢筋绑扎搭接接头连接区段及接头面积百分率注：图中所示搭接接头同一连接区段内的搭接钢筋为两根，当各钢筋直径相同时，接头面积百分率为50%。钢筋安装位置的允许偏差项目允许偏差(mm)绑扎钢筋网长、宽10 网眼尺寸20 绑扎钢

32、筋骨架长10 宽、高5 受力钢筋间距10 排距5 保护层厚度基础10 柱、梁5 板、墙、壳3 绑扎箍筋、横向钢筋间距20 钢筋弯起点位置20 预埋件中心线位置5 水平高差注：A、检查预埋件中心线位置时，应沿纵、横两个方向量测，并取其中的较大值；B、表中梁类、板类构件上部纵向受力钢筋保护层厚度的合格点率应到达90及以上，且不得有超过表中数值1.5 倍的尺寸偏差。文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8

33、D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P

34、3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5

35、J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1

36、P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH

37、8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7

38、W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4

39、M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C26、应注意的质量问题6.1、钢筋绑扎应注意的质量问题1)浇筑混凝土前检查钢筋位置是否正确，振捣混凝土时防止碰动钢筋，浇完混凝土后立即修整甩筋的位置，防止柱筋、墙筋位移。2)配制梁箍筋时应按内皮尺寸计算。防止梁钢筋骨架尺寸小于设计尺寸。3)箍筋末端应弯成1350，平直部分长度为1Od。4)梁主筋进支座长度要符合设计要求，弯起钢筋位置要准确。5)板的弯起钢筋和负弯矩钢筋位置应准确，施工时不应踩到下面。6)绑板的钢筋时用尺杆划线，绑扎时随时找正调直，防止板筋不顺直，位置不准。7)绑竖向受力筋时要吊正，搭

40、接部位绑不少于3 个扣，绑扣不能用同一方向的顺扣。8)在钢筋配料加工时要注意，端头有对焊接头时，要避开搭接范围，防止绑扎接头内混入对焊接头。6.2、混凝土浇筑应注意的质量问题1)蜂窝：原因是混凝土一次下料过厚，振捣不实或漏振，模板有缝隙使水泥浆流失，钢筋较密而混凝土坍落度过小或石子过大，墙根部模板有缝隙，以致混凝土中的砂浆从下部涌出而造成。2)露筋：原因是钢筋垫块位移、间距过大、漏放、钢筋紧贴模板造成露筋，或板底部振捣不实，也可能出现露筋。3)麻面：拆模过早或模板外表漏刷隔离剂或模板湿润不够，构件外表混凝土易粘附在模板上造成麻面脱皮，或因砼气泡多，振捣不足。4)孔洞：原因是钢筋较密的部位混凝土

41、被卡，或因石子偏大，未经振捣就继续浇筑上层混凝土。5)缝隙与夹渣层：施工缝处杂物清理不净或未浇底浆等原因，易造成缝隙、夹渣层。6)现浇楼板面和楼梯踏步上外表平整度偏差太大：主要原因是混凝土浇筑后，外表不用抹子认真抹平。冬期施工在覆盖保温层时，上人过早或未垫板进行操作。8、安全标准8.1 进入现场必须遵守安全生产六大纪律。8.2 搬运钢筋要注意附近有无障碍物、架空电线和其他临时电气设备，防止钢筋在回转时碰撞电线或发生触电事故。8.3 起吊钢筋骨架，下方禁止站人，必须待骨架降到距模板1 米以下才准靠近，就位支撑好方可摘钩。文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D

42、7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3

43、D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J

44、1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P

45、8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8

46、P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W

47、5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M

48、1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C28.4 切割机使用前，须检查机械运转是否正常，有否二级漏电保护；切割机后方不准堆放易燃物品。宽，双车来回不小于宽，在运料时，前后应保持一定车距，不准奔跑、抢道或超车。到终点卸料时，双手应扶牢车柄倒料，严禁双手脱把，防止翻车伤人。8.6 用塔吊、料斗浇捣混凝土，在塔吊放下料斗时，操作人员应主动避让，应随时注意料斗碰头，并应站立稳当，防止料斗

49、碰人坠落。8.7 使用振动机前应检查电源电压，必须经过二级漏电保护，电源线不得有接头，观察机械运转是否正常。振动机移动时，不能硬拉电线，更不能在钢筋和其它锐利物上拖拉，防止割破拉断电线而造成触电伤亡事故。技术负责人交底人接收人文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J

50、1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P8D7C2文档编码:CH8P3D1H1S2 HH7W5J1G10C7 ZV4M1P