中心设计系数是径向固结系数变异系数的减函数，而是失效概率的增函数。
The central design coefficient is decreasing function of coefficient of variation of horizontal coefficient of consolidation, and increasing function of probability of failure.
其次，根据损伤后的结构频率与模态的变化，应用径向基神经网络，进行结构节点固结系数的识别，从而实现对网架结构有限元模型的修正。
Secondly, according to the change of damage structural frequency and modal, the fixity factor is identified by RBF neural network, then FEM correction of truss is finished.
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