楼梯踏步的棱角,不论在施工中还是在交付使用后,都容易损坏。一旦损坏又很难修补。近几年来,我单位在住宅工程施工中,采取埋设钢筋保护棱角的做法,收到了很好的效果。具体做法是,取φ12钢筋若干根,每个踏步一根,每根长度可比楼梯宽度略短些。在每根φ12钢筋上加焊4组φ6短钢筋,每组2根,每根长50～60毫米,2根夹角为90°,这4组短钢筋必须焊在同一水平面上。在抹 The edges and corners of stairs are easily damaged both during construction and after delivery. Once damaged, it is difficult to repair. In recent years, my unit has adopted the practice of laying reinforced bars to protect the edges of residential projects, and has received very good results. The specific approach is to take several φ12 steel bars, one for each step, and each length can be slightly shorter than the width of the stairs. Each group of φ12 steel bars was welded with 4 groups of φ6 short steel bars, each with two groups of 50-60 mm each, and two included angles of 90°. These four groups of short steel bars must be welded to the same level. In the wipe