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就钢筋与混凝土粘结锚固性能而言，光圆钢筋具有胶结力及摩擦力，螺纹钢筋具有胶结力，摩擦力及咬合力，冷轧扭钢筋因“螺旋效应”，不仅具有胶结力与摩擦力，还具有类似于机械锚固力的旋面抵抗力，冷轧扭钢筋锚固性能的前期强度高于光圆钢筋，后期强度高于螺纹钢筋，并具有较大的“延性”。影响冷轧扭钢筋锚固性能的主要因素为混凝土强度，其锚固长度的设计值可与新Ⅲ级钢筋的设计值相一致。
In terms of the bond anchorage between steel and concrete, the light round steel bar has the binding force and the friction force. The threaded steel bar has the cementation force, the friction force and the bite force. The cold rolling and twisting steel bar has not only the cementing force but also the friction force because of the “spiral effect”. , It also has a resistance similar to the mechanical anchorage of the rotary surface. The early strength of the anchorage performance of cold-rolled and twisted steel is higher than that of the light steel bar, and the later strength is higher than that of the threaded bar, and has a larger “ductility”. The main factor influencing the anchorage performance of cold-rolled and twisted steel bars is the strength of the concrete, and the design value of the anchorage length can be consistent with the design value of the new grade III steel bar.