OPTIMIZATION OF DAMPER ARRANGEMENT WITH HYBRID GA USING ELASTO-PLASTIC RESPONSE ANALYSIS ON SEISMIC RESPONSE CONTROL RETROFIT

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  • FUJISHITA Kazuhiro
    Grad. Stud., Dept. of Arch. and Build. Eng., Tokyo Institute of Technology, M.Eng. (Research Fellow of the Japan Society for the Promotion of Science)
  • SUTCU Fatih
    Assist. Prof., Dept. of Civil Eng., Istanbul Technical University, Dr.Eng.
  • MATSUI Ryota
    Assist. Prof., Dept. of Arch. and Build. Eng., Tokyo Institute of Technology, Dr.Eng.
  • TAKEUCHI Toru
    Prof., Dept. of Arch. and Build. Eng., Tokyo Institute of Technology, Dr.Eng.

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Other Title
  • Hybrid GAおよび弾塑性応答解析を用いた制振改修におけるダンパーの最適設計
  • Hybrid GA オヨビ ダン ソセイ オウトウ カイセキ オ モチイタ セイシン カイシュウ ニ オケル ダンパー ノ サイテキ セッケイ

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Abstract

 Damper distribution rule with equivalent linearization method on seismic control retrofit for overseas brittle RC buildings was proposed by the authors. However, this result is not necessarily proved as optimal. Recently, Genetic Algorithm (GA) is applied to solve numerous kinds of structural optimization problems, mainly in the range of static analysis. In this paper, the optimization method of damper distribution with GA using elasto-plastic dynamic analysis for multi degree of freedom shear spring model is proposed. By using proposed optimization method, the optimal damper distribution, defined as minimum damper distribution satisfying the target story drift angle for seismic retrofit, is obtained. Finally, comparison of the results with GA and solutions with equivalent linearization method is represented and the effectiveness of proposed damper distribution rule is discussed.

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