所谓双钢筋,即是将冷拔低碳钢丝点焊成双梯格形状的一种配筋形式(见图1)。双钢筋的配筋和施工方法与普通钢筋的相似,但由于双钢筋具有理想的锚较固力,使钢筋设计强度可取预应力配筋的的数值,比Ⅰ级钢筋提高了一倍以上,从面节省了 The so-called double steel bar is a kind of reinforcing form that spot-welds the cold-drawn low-carbon steel wire into a double-ladder shape (see Figure 1). The reinforcement and construction methods of double steel bars are similar to those of ordinary steel bars. However, since the double steel bars have an ideal anchoring force, the design strength of the steel bars can be taken as the value of the prestressed steel bars, which is more than double the level I steel bars. Saved