钢筋混凝土梁和柱常有钢筋接头。有对焊接头、电弧焊接头,还有绑扎搭接接头。焊接接头是钢筋直接受力,搭接电弧焊的措接长度是以焊缝受力来计算的。那么,绑扎搭接光靠火烧丝绑牢能经受那么大的拉力吗?规范规定采用绑扎搭接位于受拉区时应有30倍直径、35倍直径的搭接长度,位于受压区对应用20倍、25倍直径。它们是如何决定的呢?原来绑扎钢筋传递拉力 Reinforced concrete beams and columns often have reinforced joints. There are butt welding heads, arc welding heads, and lashing lap joints. The welded joint is a direct force on the rebar, and the length of the overlap welding arc welding is calculated based on the force of the weld seam. So, can the lashings be tied to a fired wire to withstand such a large amount of tension? The specification states that when lashing is used in a tension zone, it should have 30 times the diameter and 35 times the diameter of the lap length. 20 times, 25 times the diameter. How are they decided? The original banding bar transmits tension