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ファイル | 記述 | サイズ | フォーマット | |
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aijs.80.1045.pdf | 774.27 kB | Adobe PDF | 見る/開く |
タイトル: | 微振動下の内力分布推定に基づいた鋼構造柱梁接合部の健全性評価 |
その他のタイトル: | Integrity assessment of steel beam-column connections using ambient-based inner-force estimates |
著者: | 倉田, 真宏 https://orcid.org/0000-0003-1624-1127 (unconfirmed) 鈴木, 明子 峰岸, 楓 中島, 正愛 |
著者名の別形: | Kurata, Masahiro Suzuki, Akiko Minegishi, Kaede Nakashima, Masayoshi |
キーワード: | Structural health monitoring Beam-column connection Damage quantification Vibration test 構造ヘルスモニタリング 柱梁接合部 損傷定量化 振動試験 |
発行日: | Jul-2015 |
出版者: | 日本建築学会 |
誌名: | 日本建築学会構造系論文集 |
巻: | 80 |
号: | 713 |
開始ページ: | 1045 |
終了ページ: | 1053 |
抄録: | This paper presents a method of evaluating local damage in steel beam-column connections using dynamic strain responses measured under ambient vibrations. In the proposed method, inner-force distribution in steel beam-column connection was estimated using the natural modal components measured by PolyVmylidene DiFluoride (PVDF) strain sensors. For evaluating damage in steel beam-column connections, two kinds of damage-related features were proposed. One was the transition of the neutral axis for evaluating the loss of composite action between steel beams and concrete floor slab. The other was the reduction of the dynamic strain responses from the undamaged condition in terms of root mean square (RMS) for quantifying steel beam fractures. A unique testing method was developed to verify the damage-related features at component-level. In the test configuration, the specimen was damaged quasi-statically and vibration tests were conducted as damage proceeds. Moreover, an analysis model of the specimen was built and updated using dynamic strain responses. This model-updating was particularly interested as it provided estimates on the residual seismic capacities of the specimens in terms of the quantities familiar to structural engineers (i.e., stiffness and strength). |
著作権等: | © 2015 日本建築学会 発行元の許可を得て登録しています. |
URI: | http://hdl.handle.net/2433/263904 |
DOI(出版社版): | 10.3130/aijs.80.1045 |
出現コレクション: | 学術雑誌掲載論文等 |
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