The new seismic design code adopted for railway structures in Japan is a system to check whether the response calculated through dynamic analysis satisfies the seismic performance of railway structures. To aim at a seismic design method, it is necessary to quantitatively evaluate the bearing capacity and ductility of members that compose a structure. In this paper, the range of application of the quantitative evaluation proposed in the past researches was expanded about the concrete filled tubular steel columns. The quantitative evaluation of bearing capacity and ductility correspondent to the damage degree was re-evaluated.