Unified Understanding of Base Seismic Isolation, Interstory Seismic Isolation and Tuned Mass Damper for Buildings
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- IKEDA, Yoshiki
- Disaster Prevention Research Institute, Kyoto University
Bibliographic Information
- Other Title
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- 建物の基礎免震,中間層免震および同調型マスダンパによる制振の統一的理解
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Description
For a building with an interstory seismic isolation system, an inverse problem is formulated based on the pole allocation method in control theories. The structural system is simplified as a 3DOF lumped-mass shear model. The natural frequencies and the corresponding damping ratios in the three vibration modes are set as the initial control target. To achieve this target, the introduced solution provides the natural frequencies of the lower substructure, upper substructure, and the isolator with damper capacity. The closed-form expression clarifies how the isolator's natural frequency and damper's capacity are related to the dominant natural frequencies of both the substructures and to the target modal damping ratios. The mathematical expression explains the trade-off relationship between the damping ratios of the lower and upper substructures. The solution is also applied to a building with a base seismic isolation system or a tuned mass damper system.
Journal
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- Disaster Prevention Research Institute Annuals. B
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Disaster Prevention Research Institute Annuals. B 64 (B), 21-39, 2021-12
京都大学防災研究所
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Keywords
Details 詳細情報について
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- CRID
- 1050854718008533632
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- NII Article ID
- 120007192908
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- NII Book ID
- AN00027784
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- HANDLE
- 2433/268141
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- ISSN
- 0386412X
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- Text Lang
- ja
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- Article Type
- departmental bulletin paper
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- Data Source
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- IRDB
- CiNii Articles