1、精轧螺纹钢的联结器位置应在粗钢筋中底部,以免与纵向预应力筋发生碰撞,具体下料长度按照技术交底执行。

1, the bar at the bottom of the coupling position should be reinforced in order to avoid collisions with longitudinal prestressed reinforcement, concrete cutting length according to the technical disclosure execution.

2、钢筋的联结器应相互错开,50cm范围内联结器数量不宜大于钢筋总数的25%。

2, reinforced connector should be staggered, the range of 50cm inline junction should not be greater than 25% of the total number of reinforced.

3、精轧螺纹钢筋的波纹管内径为ф50,联结器位置波纹管内径为ф80,长度40cm,施工时应保证ф80波纹管与ф50波纹管的连接质量，以免漏浆,两端用封口胶密封。

3, finishing rolling rebar corrugated tube diameter Phi 50, coupling position corrugated pipe diameter is Phi 80, length 40cm, construction should guarantee the quality of connection of phi 80 Phi 50 corrugated pipe and corrugated pipe, to avoid leakage, ends with sealing glue seal.

4、精轧螺纹钢宜用砂轮锯切割下料,严禁用电焊或氧气切割。

4. It is necessary to cut down the blanking with a grinding wheel saw and strictly prohibit the use of electric welding or oxygen cutting.

5、精轧螺纹钢用连接器连接,接长端需用油漆画出1/2联接器长度，以保证被连接钢筋与联结器相对位置的准确。

5, the bar with the connector, with the long end with paint to draw 1/2 coupling length, to ensure that the connection of reinforcement and the accurate relative position of coupler.

6、 在搬运、安装精轧螺纹钢时,应避免碰伤螺纹,严禁点焊精轧螺粗钢筋;  7、张拉端(即下端)钢筋外露出螺母的长度为4cm,距梁底为 2.5cm,张拉前钢筋外露出锚具的长度应大于15cm。

6, when transporting and installing finish rolling thread steel, we should avoid bumping thread, strictly prohibit spot welding, finish rolling screw and coarse steel bar, and 7, the length of the exposed nut on the steel bar of Zhang Laduan (lower end) is 4cm, and the distance from the bottom of the beam is 2.5cm. The length of the anchorage outside the steel bar before stretching should be more than 15cm.

8、竖向预应力筋的孔道中心线与孔道端头的端面应该垂直，防止精轧螺纹钢筋受拉受弯折断.不垂直误差不应大于±3%。

8, the vertical centerline of the prestressed reinforcement should be perpendicular to the end surface of the end of the hole, so as to prevent the finished rolled bar from being bent and broken. The vertical error should not exceed 3%.

我公司会恪守商业信誉及平等互利的原则，竭诚为用户提供最优良的服务，创作更加完美的作品，诚愿与各界朋友携手奋进，共创繁荣。

Our company will abide by the principles of business reputation and equality and mutual benefit, and provide users with the best service and create more perfect works. We are willing to work together with friends from all walks of life to create prosperity.