抄録
For rational reliability based structural design, it is important to accomplish the target probability of failure as accurate as possible. From this standpoint, this paper presents a probabilistic basis for the fractile-based structural design, and demonstrates the advantage of the method. Numerical examples indicate the superiority of the proposed fractile method to the second moment method. It is also noted that, by the independent determination of the design points from the linearization procedure, the proposed method has proved much simpler than the improved second moment method proposed by Rackwitz et. al., retaining its accuracy at a similar level.
