The authors have proposed Step-over Isolated Structure system as one of the extension methods for multistory housings. In this system, stability consideration for the supporting columns is essential, including P-∆ effects and plastic deformation of columns. In this paper, the effects of such combined non-linear characteristics of the columns on the stability and seismic response of the system are studied and discussed. Toru TAKEUCHI� � � �1 Yosuke YAMAMOTO� �2 Yasuhiro NAKATA� � �3 Eiichiroh

more »

... KI� � � �4 The authors have proposed Step-over Isolated Structure system as one of the extension methods for multistory housings.� In this system, stability consideration for the supporting columns is essential, including P-� effects and plastic deformation of columns. In this paper, the effects of such combined non-linear characteristics of the columns on the stability and seismic response of the system are studied and discussed.