Abstract
In Japan, a long-period earthquake or an extreme seismic event that exceed the assumed level of structural design codes are concerned to occur in the future. This paper presents a new seismic control method which effectively reduces the response displacement of the base-isolation layer of a base-isolated building. A displacementdependent damping model is effective in the direct reduction of the displacement, because the damper force generated is relative to the displacement, while that of a conventional viscous damper is relative to the velocity. In this paper, we propose the variable-oval-control rule for a semi-active damper, a magneto-rheological (MR) damper, to simulate a displacement-dependent damping model. Time history analyses are performed to compare the experimental results and to verify the effectiveness of the present control rule in seismic response reduction. Shaking table tests are conducted to verify the accuracy of the present control rule and characteristics of the MR damper.
| Original language | English |
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| Title of host publication | Proceedings of the 10th International Conference on Computational Structures Technology, CST 2010 |
| Publisher | Civil-Comp Press |
| Volume | 93 |
| ISBN (Print) | 9781905088386 |
| Publication status | Published - 2010 Jan 1 |
| Event | 10th International Conference on Computational Structures Technology, CST 2010 - Valencia, Spain Duration: 2010 Sep 14 → 2010 Sep 17 |
Other
| Other | 10th International Conference on Computational Structures Technology, CST 2010 |
|---|---|
| Country | Spain |
| City | Valencia |
| Period | 10/9/14 → 10/9/17 |
Keywords
- Base isolation
- Magneto-rheological damper
- Numerical analysis
- Shaking table test
- Variable-oval-control rule
ASJC Scopus subject areas
- Environmental Engineering
- Civil and Structural Engineering
- Computational Theory and Mathematics
- Artificial Intelligence