The result is that the bond-anchorage property of ultra-fine grain steel bar is identical to that of common crescent ribbed bar,the anchoring length can be designed with the formula in code for design of concrete structures(GB50010-2002).

• 研究结果表明,虽然超细晶粒钢筋属推广的新型工程材料,轧制工艺与传统钢筋不同,但超细晶粒钢筋的粘结锚固性能与普通热轧带肋钢筋(月牙纹)基本相同,其设计锚固长度la仍可按现行《混凝土结构设计规范》GB50010-2002规定的公式计算;