中国土木工程学报 关键词：近场地震动；位移延性；强度折减系数 [gap=1085]Keywords: near-field ground motions; displacement ductility; strength reduction factor
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fatigue strength reduction factor 其中疲劳强度削减系数 ; 疲劳强度减低因数
Shear Strength Reduction Factor method 强度折减法
strength reduction factor method 强度折减系数法
The global stability criterion of cavern group is established based on the K-?E relation, where K is the strength reduction factor and ?
E关系曲线的库群整体稳定性和破坏的关键判据，其中，K为强度折减系数，?。
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
Finally, based on theoretical analysis, numerical simulation and test verification, the strength reduction factor and the calculation expression of normal section bearing capacity of CFRP are given.
最后，在理论分析、数值模拟及试验验证的基础上，给出了CFRP的强度折减系数值和正截面承载力计算表达式。
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