[提要]  从连续梁延性定义出发，论述了钢筋混凝土连续梁位移延性的计算方法，并推导出相应的计算公式，同时给出了判别钢筋混凝土连续梁屈服和形成机构的方法。
[关键词]  钢筋混凝土连续梁 位移延性 塑性铰 机构

Starting from the definition of continuous beam ductility, this article describes the calculation methord for displacement ductility of reinforced concrete beam. The related calculation formula is deducted. Meanwhile the methord to distinguish the reinforced concrete continuous beam yielding from the formative mechanism is given.
Keywords: reinforced concrete; continuous beam; displacement ductility; plasticity hinge, mechanism.