免震構造物の耐震性能は，上部構造の骨組部材の特性と，免震装置の配置により大きく変化する。一方で，構造設計においては，免震装置と骨組部材の選定には多数の組み合わせが存在するため，設計者は対象とする免震構造物の地震応答解析を何度も繰り返し，免震装置と骨組部材の組合せを決定する必要がある。%This paper proposes a optimal design method of base-isolation device and frame member in a reinforced concrete building. The proposed algorithm called DCMOGA( Distributed Cooperation model of MOGA(Multi Objective Genetic Algorithm) and SGA (Standard Genetic Algorithm) ) and conventional multi objective optimization are applied to design two buildings. Finally,a comparison was made among design solutions. Comparing to the conventional multi objective optimization methods ,the proposed model found the widespread Pareto solutions. Consequently,the effectiveness of the proposed model was demonstrated.
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