- 著者
- 山本 健史 保井 美敏 永野 正行 肥田 剛典 田沼 毅彦 渡辺 一弘
- 出版者
- 一般社団法人 日本建築学会
- 雑誌
- 日本建築学会技術報告集 (ISSN:13419463)
- 巻号頁・発行日
- vol.19, no.42, pp.447-452, 2013-06-20 (Released:2013-06-20)
- 参考文献数
- 4
- 被引用文献数
- 8 6
During the 2011 off the Pacific coast of Tohoku Earthquake, strong motion wave observed at the 30-story reinforced concrete super high-rise building located on poor ground in the Kanto region. By response simulation analysis, a particular response behavior of the building during this earthquake were explored, and then the relationship between damage to building interior and response simulation analysis results were carried out.
1 0 0 0 OA 変分オートエンコーダによるベイズ更新を用いた非線形地震応答解析モデルの更新手法の提案
- 著者
- 李 尚元 松本 雄馬 八百山 太郎 肥田 剛典 糸井 達哉
- 出版者
- 日本建築学会
- 雑誌
- 日本建築学会構造系論文集 (ISSN:13404202)
- 巻号頁・発行日
- vol.88, no.812, pp.1406-1416, 2023-10-01 (Released:2023-10-01)
- 参考文献数
- 28
This paper proposes a nonparametric Bayesian updating method for nonlinear seismic response analysis models considering uncertainties using Variational Auto-Encoder (VAE). The proposed method is used for calculating the likelihood of the parameters for the response analysis model using VAE without any assumptions about the probability distribution. The proposed method is confirmed to successfully update the probability distribution of the parameters of a bilinear single-degree-of-freedom system. To discuss the characteristics of the proposed method, the relationship between the uncertainty due to the lack of information on the nonlinear response and the width of the posterior distribution of the parameters is investigated.
1 0 0 0 OA 部分空間法に基づくシステム同定による建物の固有振動数と減衰定数の推定精度
- 著者
- 肥田 剛典 永野 正行
- 出版者
- 日本建築学会
- 雑誌
- 日本建築学会構造系論文集 (ISSN:13404202)
- 巻号頁・発行日
- vol.79, no.701, pp.923-932, 2014-07-30 (Released:2014-09-30)
- 参考文献数
- 25
- 被引用文献数
- 9 13
As the structural health monitoring tools, three subspace-based system identification methods, the ordinary MOESP, the N4SID and the PO-MOESP, were investigated to discuss the identification accuracy of natural frequency and damping factor of buildings. Fundamental case studies using SDOF response data revealed that the identification accuracy of the N4SID was lower than those of the ordinary MOESP and the PO-MOESP. This was because the 2-norm of the matrix applied to the noise in the N4SID was larger than the other methods. Finally, the difference in identification accuracy between three methods was verified by using the strong motion records of an RC super high-rise residential building during the 2011 off the Pacific coast of Tohoku Earthquake.