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2475-8876.12059.pdf | 797.31 kB | Adobe PDF | 見る/開く |
タイトル: | Machine learning for combinatorial optimization of brace placement of steel frames |
著者: | Tamura, Takuya Ohsaki, Makoto https://orcid.org/0000-0003-4935-8874 (unconfirmed) Takagi, Jiro |
著者名の別形: | 大﨑, 純 |
キーワード: | binary decision tree braced frame machine learning optimization simulated annealing support vector machine |
発行日: | Oct-2018 |
出版者: | Wiley |
誌名: | Japan Architectural Review |
巻: | 1 |
号: | 4 |
開始ページ: | 419 |
終了ページ: | 430 |
抄録: | A method is presented for optimal placement of braces of plane frames using machine learning. The frame is subjected to static horizontal loads representing seismic loads. We consider the process of seismic retrofit by attaching braces. Therefore, the maximum value of additional stresses in the existing beams and columns and the maximum interstory drift angle are incorporated in the optimization problem. Characteristics of approximate optimal solutions and nonoptimal solutions are extracted using machine learning based on support vector machine and binary decision tree. Convolution and pooling are used for defining the features characterizing the solutions while reducing the number of variables. Optimization is carried out using a heuristic algorithm called simulated annealing based on local search. It is shown in the numerical examples that the computational cost is successfully reduced by avoiding costly structural analysis for a solution judged by machine learning as nonoptimal, and the important features in approximate optimal and nonoptimal solutions are identified. |
著作権等: | © 2018 The Authors. Japan Architectural Review published by John Wiley & Sons Australia, Ltd on behalf of Architectural Institute of Japan. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
URI: | http://hdl.handle.net/2433/236063 |
DOI(出版社版): | 10.1002/2475-8876.12059 |
出現コレクション: | 学術雑誌掲載論文等 |
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