Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法，建立疲劳裂纹扩展模型和失效模式的极限状态方程。
The limit state equations of main failure modes are formulated by the increment interval load method.
并提出用区间增量载荷法生成主要失效模式的极限状态方程。
Based on the moment estimation of limit state function for calculation of failure probability, a new reliability sensitivity analysis method is presented.
基于极限状态函数矩估计的失效概率计算，提出一种新的可靠性灵敏度分析方法。
For reliability analysis of implicit limit state function, an improved line sampling method is presented on the basis of sample simulation in the failure region.
针对隐式极限状态方程的可靠性分析，提出了一种基于失效域样本模拟的高效线抽样法。
From limit state of reduced safety factor, critical failure probabilities and variation coefficients corressponding different maximum possible safety factors were calculated.
从折减后安全系数的极限状态中，计算出不同最大可能安全系数的临界变异系数和临界破坏概率。
The failure mode and the design reference period of the steel rail are discussed, and the steel rail's performance function at limit state is established too.
讨论了钢轨的失效模式和设计基准期，建立了钢轨极限状态方程的功能函数。
Based on the general theory of structure reliability, a limit-state function for assessment of failure pipeline was established and expressed as the normalized random variables.
基于结构可靠性的一般理论，建立了腐蚀缺陷管线失效的极限状态函数，并以规则化的随机变量形式表示。
The distinction and interrelation between the liquefaction, the state of limit equilibrium and the failure of soil masses are studied and discussed.
对土体液化与极限平衡和破坏的区别和关系进行了阐述。
The distinction and interrelation between the liquefaction, the state of limit equilibrium and the failure of soil masses are studied and discussed.
对土体液化与极限平衡和破坏的区别和关系进行了阐述。
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