抄録
An optimum design problem was treated to determine a structure having a minimum structural cost or weight under the constraint on the allowable failure probability of the structure. A design method was proposed, which attains the optimum solution to the problem by sequentially solving a subproblem. The result was compared with that using SUMT (Sequential Unconstrained Minimization Technique) combined with a conjugate gradient method. Furthermore, the effects of the statistical correlation between the failure modes, the buckling failure mode of compression members, and the configuration of structures on the resulting optimum design of simple structures were discussed.
