阐述用含裂纹的梁单元对混凝土平面框架结构进行损伤识别。建立含裂缝梁单元的刚度矩阵及其振动特征方程，对损伤部位的裂缝高度进行识别，可直观地评价损伤的严重程度。通过对钢筋混凝土框架试验结果分析表明，该文方法是可行的。 Explain the damage identification of concrete plane frames with cracked beam elements. The stiffness matrix and the vibration characteristic equations of the cracked beam elements are established to identify the height of the fracture at the damage site and the severity of the damage can be directly evaluated. The analysis of the experimental results of reinforced concrete frames shows that this method is feasible.