多个独立应力组合的极值Ⅰ型——正态模式结构可靠性设计

Structural Reliability Design forExtreme Value DistributionNormal Distribution Model ofMultiple Independent Combinatorial Stress

利用当量正态变量方法来讨论多个独立应力组合的极值Ⅰ型——正态模式结构可靠性设计问题，得到了该模式结构可靠性当量正态设计表达式及其可靠系数公式；并对该模式结构可靠度的理论值与设计值进行比较，给出它们之间的相对误差．

In this paper, we discuss the problem about the structural reliability design for extreme value distribution——normal distribution model of the multiple independent combinatorial stress by the method of equivalent normal random variable. We find out the explicit expression of the equivalent normal design and the formula of the reliable coefficient in this problem. We also compare the designed value with the accurate value of structural reliability in this model and give the relative error.