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提供两种方法，确定结构刚度指标。第一种方法是已知刚度变差系数Ｃｆ，确定结构刚度指标。第二种方法是借助卡埃分布表，确定结构刚度指标。这两种方法都能得到满意的结果。文中还列举了许多实例，并指出了需要注意的问题。
Two methods are provided to determine the structural stiffness index. The first method is known coefficient of variation of stiffness Cf, to determine the structural stiffness index. The second method is to use Kaye distribution table to determine the structural stiffness index. Both of these methods give satisfactory results. The article also lists many examples, and points out the issues that need attention.