ABSTRACT
This paper introduces the concept of a “design set of input motions”, a suite of various types of input motions which satisfy certain conditions for the seismic design. Diversity of input motions in the set is an index to evaluate the reliability of the design set.
We construct a concrete scheme of setting design input motions based on the concept of design set. As the first stage, a set of design input motions which has appropriate degree of diversity is selected. For the practical purpose, however, we need to have some specific input motions to be utilized in the design. In the second stage, we present a method to synthesize an input motion which represents the design set.
