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柱子竖向钢筋的连接方法通常有两种,即焊接和机械连接。焊接用于(?)25及(?)25以下钢筋的连接,机械连接用于(?)25以上钢筋的连接。常用的焊接分为气压焊和电渣焊。常用的机械连接分为冷挤压连接和锥螺纹连接。四种连接方法各有利弊:前三种方法,连接质量可以直观看出来,但是速度较慢,受设备(如氧气、乙炔、烤枪和电渣焊用的仪表等)数量的影响较大;冷挤压除受设备影响外,操作中容易因漏油而污染钢筋;锥螺纹连接速度快,但丝头隐藏在套简中,连接质量(例如套丝长度、有无滑丝以及拧紧程度等)不能直观看出来,而且封顶时,不易控制弯钩的方向。柱筋如果粗大,竖立不失稳时可以一次接两层。实践表明,设法减少接头
There are usually two types of connection methods for the vertical reinforcement of columns, namely welding and mechanical connections. Welding is used for the connection of (?)25 and (?)25 or less steel bars, and mechanical connection is used for the connection of (?)25 or more steel bars. Commonly used welding is divided into gas pressure welding and electroslag welding. Commonly used mechanical connections are divided into cold extrusion connections and tapered thread connections. The four connection methods have their own advantages and disadvantages: The first three methods, the connection quality can be directly observed, but the speed is slow, affected by the number of equipment (such as oxygen, acetylene, baked guns and electroslag welding instruments) has a greater impact; Cold Extrusion In addition to being affected by the equipment, it is easy to contaminate the steel due to oil leakage during operation. The screw thread connection speed is fast, but the wire head is hidden in the sleeve and the connection quality (such as the length of the thread, the presence or absence of the slide wire and the degree of tightening, etc.) ) It cannot be viewed directly, and when capping, it is not easy to control the direction of the hook. If the column ribs are thick, they can be attached to two layers at a time without losing stability. Practice shows that trying to reduce joints