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钢筋绑扎搭接的机理是什么?

添加时间:2019-06-14      发布人:http://www.jzqgc.com

  钢筋绑扎研磨的机理是钢筋的锚固。但是由于搭接部分的钢筋相互接触,接触面缺少足够的混凝土包裹,缺少一定的抓地力。考虑到这一点,研究人员经过研究和实践,引入了一个大于锚固长度1倍的修正系数作为标准应用的补偿,即搭接接头的长度。因此,搭接长度=锚固长度×修正系数。
  The bonding and grinding mechanism of reinforcing bars is anchorage of reinforcing bars. However, due to the contact of the overlapping steel bars, the contact surface lacks enough concrete wrap and a certain grip force. In view of this, after research and practice, the researchers introduced a correction factor greater than 1 times the anchorage length to compensate for the standard application, that is, the length of lap joint. Therefore, lap length = anchorage length * correction factor.
  我们知道11g101-1的钢筋搭接需要我们计算,应该说有点麻烦。但是,16g101-1的新版本要简单得多,直接提供表格,只要一对一的对应就可以。16G101也是常用的结构。
  We know that the overlap of 11g101-1 steel bar needs our calculation. It should be said that it is a bit troublesome. However, the new version of 16g101-1 is much simpler, providing tables directly, as long as one-to-one correspondence. 16G101 is also the most commonly used structure.
  表面层钢筋与钢框架的焊接或绑扎允许偏差应符合表7.5.4-1的规定。
  The allowable deviation of welding or binding between surface steel bars and steel frames shall be in accordance with Table 7.5.4-1.
  表7.5.4-1表面钢筋与钢筋框架焊接或绑扎允许偏差(mm
  Table 7.5.4-1 Allowable deviation (mm) of welding or binding between surface steel bar and steel frame
  钢筋焊接搭接长度不小于5d(d为钢筋直径),单面焊接搭接长度不小于10d。钢筋绑扎搭接长度不应小于35d。
  The overlap length of steel bar welding is not less than 5 days (d is the diameter of steel bar), and the overlap length of single side welding is not less than 10 days. The overlap length of steel bar should not be less than 35 days.
  3.同一竖向截面上焊接或绑扎钢筋的数量不得超过截面钢筋总数的25%,相邻钢筋的焊接或绑扎接缝应错开500mm或1000mm。纵向连续加固应每隔30米在绑扎处设置一次。点击这里下载施工技术
  3. The number of welded or bonded reinforcing bars on the same vertical section shall not exceed 25% of the total number of reinforcing bars on the section. The welded or bonded joints of adjacent reinforcing bars shall be staggered by 500 mm or 1000 mm. Longitudinal continuous reinforcement should be set at the binding site every 30 meters. Click here to download construction technology for free
  4. 路面、桥梁表面及加固框架上钢筋安装位置的允许偏差应符合表7.5.4-2的规定。
  4. The allowable deviation of the installation position of reinforcing bars on pavement, bridge surface and reinforced frame should comply with Table 7.5.4-2.
  地下铁道工程施工及验收规范gb50299 - 1999(2003版)> 5隧道开挖方法明建筑钢材加工和安装> > 5.5(Ⅱ)钢绑定
济南钢筋批发
  Code for Construction and Acceptance of Underground Railway Engineering gb50299 - 1999 (2003 edition)> 5 Tunnel Excavation Method for Open Building Steel Processing and Installation > 5.5 (II) Steel Binding
  钢筋绑扎搭接长度应满足设计要求,绑扎点应满足以下要求:
  The overlap length of steel bar should meet the design requirements, and the binding point should meet the following requirements:
  1钢筋搭接时,中间和两端应搭接三处,必须单独搭接,再搭接交叉钢筋;
  When the reinforcing bars are lapped, three places should be lapped at the middle and two ends, and the cross reinforcing bars must be lapped separately, and then the cross reinforcing bars should be lapped.
  主筋2根,分布筋2根,变形节处除2 ~ 3根骨架柱外,其余绑扎均可交叉;
  There are 2 main reinforcements and 2 distributed reinforcements. Except for 2 - 3 skeleton columns at the deformed joints, all the other bonds can be crossed.
  3主杆之间或双向受力杆之间的交点应全部绑扎;
  The intersection points between the main poles or the two-way bearing poles should be all tied up.
  4. 单腿箍筋与双腿箍筋的角部应在主腱交点处完全结扎,双腿箍筋的直部与主腱交点可交叉结扎;
  4. The corner of single-leg stirrups and double-leg stirrups should be ligated completely at the junction of the main tendon, and the straight part of the double-leg stirrups and the junction of the main tendon can be cross-ligated.
  5. 墙体、立柱立柱与底板水平主杆的交接点必须绑扎牢固。悬臂梁较长时,交点必须焊好,必要时增加支撑;
  5. The joints of the wall, column and horizontal main pole of the floor must be firmly tied. When the cantilever beam is long, the intersection must be welded well and support should be added if necessary.
  除了两排外,所有的钢网片的交叉点都是被绑住的。中间部分的交叉口可以相互交错并牢固结合。
  Except for two rows, all the intersections of the steel mesh are tied. Intersections in the middle can be crisscrossed and firmly integrated.
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