弾塑性多層建物に対する同調型慣性質量ダンパーの時間及び振動数領域における応答評価を組み合わせた二段階最適設計法

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  • TWO-STEP OPTIMIZATION OF TUNED INERTIAL MASS DAMPERS FOR ELASTIC-PLASTIC MDOF STRUCTURES USING TIME-FREQUENCY DUAL DOMAIN PERFORMANCE EVALUATION

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<p>The purpose of this paper is to propose a two-step optimization method to design tuned inertial mass dampers for elastic-plastic MDOF structures using the time-frequency dual domain performance evaluation. Although the frequency-domain-based approach allows us to obtain the optimal design independent of the characteristics of disturbances, it cannot consider the elastic-plastic response of structures. On the other hand, the time-domain design is highly dependent on the characteristics of design earthquake ground motions. The proposed two-step method resolves these issues by use of dual-domain information. Finally, the response analysis for recorded ground motions demonstrates the effectiveness of the proposed design method.</p>

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