Abstract
In Japan, the revision of the design codes to consider the performance design is advanced including the Specification of Highway Bridges in recent years. If an objective performance is shown as a limit state and its performance is shown by the amount of the probability, the performance design method is equal to the limit state design method. The limit state design method is the design method based on the structural reliability theory. The partial safety factors design method will be one of the standard methods because this design method is introduced in ISO2394. As for the partial safety factors design method, a decision of the value of the partial factors is a very important matter. This paper presents some correlation between partial safety factors and return period of input motions for the reliability design method. In this study, partial safety factors are calculated by a proposed method by authors which is to prepare several partial safety factors around the ones obtained from AFOSM method in advance. We check the correlation by designing a steel pier to withstand local buckling against a ground excitation.
