【摘要】 本文根据断裂力学的基本原理导出了海洋工程结构疲劳失效的安全余量和检测事件的安全余量 ,并在此基础上给出了计算更新后的疲劳失效概率的一阶方法。文中对结构的安全余量与检测事件的安全余量之间相关性的影响进行了讨论 ,并结合算例研究了检测可靠度的影响 ,指出了疲劳可靠性更新对合理制定检测周期的作用更多还原

【Abstract】 Based on the basic principles of fracture mechanics, the paper derivated the safety allowance of fatigue failure of offshore structures, and safety allowance for measuring. On this base, an first order method for calculating the probability of fatigue failure after renewing is proposed. The effect of correspondence between structure safety allowance and measuring safety allowance are discussed. Combining with an example on the effect of measuring reliability, the effect of renewing of fatigue reliability on defining reasonable measuring period is pointed out.更多还原