A new RCB approach is presented.

提出了一种改进rcb算法。

The parameters of vibration characteristic are able to be calculated for the healthy and damage RCB with the model.

利用该模型可以计算它们的振动特性参数，研究其局部损伤与振动特性参数的关系。

The parameters of vibrational characteristics for healthy and broken RCBs were calculated by the model and the mode parameters of a real RCB were tested.

采用该模型计算了健康和局部破损梁的振动特性参数，计算结果与实际测试结果相吻合；

The felting relation about the reinforce steel bar and reinforce concrete is simulated and stiffness matrixes and mass matrixes of every RCB are presented in the model.

模型针对钢筋和混凝土两种性质不同的材料，模拟了它们之间的粘结关系； 给出上述各种梁的刚度矩阵和质量矩阵；