随着钢筋混凝土结构的大型化、复杂化,常采用密集配筋。为减少浇筑混凝土的困难,宜采用粗钢筋。应用粗钢筋的关键是连接,我国目前常用的方法有电弧焊,电渣压力焊,气压焊及绑扎法等。绑扎法的缺点是要浪费大量钢材,不能承受轴 With the large-scale and complex reinforced concrete structures, dense reinforcements are often used. In order to reduce the difficulty of pouring concrete, coarse steel bars should be used. The key to the application of thick steel bars is the connection. The current methods commonly used in China include arc welding, electroslag pressure welding, pressure welding and banding. The disadvantage of the lashing method is that it wastes a lot of steel and cannot withstand the shaft.