钢筋伸进支座或在连续梁中承担负弯矩的上部钢筋在跨中截断时,需要延伸一段长度,这段长度即为锚固长度。要使钢筋承受所需的拉力,就要求受拉钢筋有足够的锚固长度以积累足够的粘结力,否则,将发生锚固破坏,有时锚固长度不足将直接影响到构件的承载力。锚固、搭接长度不足会引起粘结破坏, Reinforcement into the support or bear in the continuous beam of the upper part of the steel in the mid-span cut off, you need to extend a length of this length is the anchor length. For the steel bar to bear the required tension, it is required that the tensile steel bar have sufficient anchorage length to accumulate enough adhesive force, otherwise, the anchoring damage will occur. In some cases, the insufficient anchoring length will directly affect the bearing capacity of the component. Anchoring, lap length will lead to bond damage,