A new probabilistic long-period critical excitation procedure for isolated building structures
Mechanics Based Design of Structures and Machines 52 巻 9 号
7063-7091 頁
2024-01-03 発行
アクセス数 : 6 件
ダウンロード数 : 3 件
今月のアクセス数 : 6 件
今月のダウンロード数 : 3 件
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00056106
| ファイル情報(添付) | |
| タイトル ( eng ) |
A new probabilistic long-period critical excitation procedure for isolated building structures
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| 作成者 |
Bazrafshan Arsalan
Ahmadi Goodarz
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| 収録物名 |
Mechanics Based Design of Structures and Machines
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| 巻 | 52 |
| 号 | 9 |
| 開始ページ | 7063 |
| 終了ページ | 7091 |
| 抄録 |
The present paper develops a new procedure for finding the most unfavorable long-period excitation for isolated building structures based on the probabilistic critical excitation method. The upper bound of earthquake input energy per unit mass is considered the problem’s constraint, and a modified power spectral density (PSD) function is proposed to conform to the new constraint. It is shown that the new constraint can be used as a criterion to estimate the possible range of input energy of similar earthquakes. In addition, the new PSD function can control the excitation’s intensity. Finally, three base-isolated shear buildings modeled as multi degree of freedom systems with nonproportional damping are considered, and the critical excitations for each model are found based on the proposed method. To examine the reliability of the results, three actual accelerograms with a considerably high level of total input energy are selected as benchmarks and linear dynamic analyses are conducted using these accelerograms along with the generated critical excitations. The results show that the generated long-period excitations can better estimate the structural behavior (i.e., maximum displacement, drift, and absolute acceleration of stories) than the actual benchmark accelerograms.
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| 著者キーワード |
Critical excitation
isolated building structures
non-stationary random process
total input energy per unit mass
synthetic accelerograms
long-period ground motions
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Taylor & Francis
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| 発行日 | 2024-01-03 |
| 権利情報 |
This is an Accepted Manuscript of an article published by Taylor & Francis in Mechanics Based Design of Structures and Machines on 03 Jan 2024, available at: https://doi.org/10.1080/15397734.2023.2297242.
This is not the published version. Please cite only the published version.
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
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| 出版タイプ | Accepted Manuscript（出版雑誌の一論文として受付されたもの。内容とレイアウトは出版社の投稿様式に沿ったもの） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[DOI] https://doi.org/10.1080/15397734.2023.2297242
～の異版である
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