2022 Fiscal Year Final Research Report
Integrated Response Control Method using TMD and Cable to Improve the Seismic Performance of Spatial Structures
| Project/Area Number |
20K04774
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 23010:Building structures and materials-related
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| Research Institution | Waseda University (2021-2022)
Osaka City University (2020) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山川 誠 東京理科大学, 工学部建築学科, 教授 (50378816)
藤原 淳 国立研究開発法人防災科学技術研究所, 地震減災実験研究部門, 主幹研究員 (80817049)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 建築構造 / 制振 / 耐震補強 / TMD / ケーブル / 山形体育館 / 振動台実験 |
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| Outline of Final Research Achievements |
In this study, in order to propose the integrated response control method using TMD and cable to improve the seismic performance of spatial structures, we conducted a shaking table test using a scaled-down gable roof model applying TMDs and studied on the seismic reinforcement method focusing on the non-compressive characteristics of cable. (1) We verified the vibration control performance of TMD for a gable roof under seismic loadings. It was founded that the control performance was strongly influenced by the vibration characteristics of TMD device. (2) We proposed the cable arrangement method for an arch model and a cylindrical latticed shell and verified analytically the control effect under seismic loadings.
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| Free Research Field |
建築構造学
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| Academic Significance and Societal Importance of the Research Achievements |
空間構造は一般的なビル等の重層骨組構造と比較して振動性状が複雑であるとともに、制御デバイスが建築の美しさを損なわないような配慮が必要である。本研究では出来るだけ簡易なシステムを提案し、地震時の応答制御効果を実験および解析的に確認するとともに今後取り組むべき課題を抽出した。特にＴМＤを大型の３次元空間構造に適用して振動台実験で制振効果を確認した例はなく、インパクトが大きい。よって本研究の成果は学術的意義と社会的意義が大きい。
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