Abstract
To develop a rational stability design method for a rigid multi-bay multi-story frame with slender columns, inelastic buckling load of unbraced frame dominated by single buckling of column is studied. We proposed the method for a single buckling of the column elastically restrained by other members is derived for simplified models by the previous paper. In this paper, we applies the proposed method for the elastic frames to the inelastic frames. Through analytical and numerical studies carried out, the condition that the column buckles prior to the frame instability is investigated. Applicability of the proposed method is also demonstrated and discussed.
