结构可靠性计算的一种方法

A Calculating Method of Construction Reliability

本文推出了随机加载工况下结构疲劳寿命可靠度及结构可靠性疲劳寿命的计算方法，克服了“可靠度递推公式”法只能计算固定加载顺序下结构疲劳寿命的可靠度且难以预测指定可靠度下的疲劳寿命的不足。用此方法对铸铜侧架进行的可靠性疲劳寿命估算表明，此法是实用可靠的。

In this paper, the method, which is used to calculate the reliability of fatigue life and the fatigue life of reliability on structure under the condition of random load, is deduced. The method overcomes the disadvantage of 'reliability recurrence formula' which can only calculate the reliability of fatigue life on construction under the fixed loading order.Besides,the fatigue life of reliability for the cast steel side frame is predicted by using this method.The calculation shows that the method is practical and reliable.