A Study on Hysteretic Characteristics of Arc-Shaped Damper Osaka City University
Since significant damages during 1995 Kobe Earthquake, one of urgently needed is to retrofit frame type timber structures. In responding, the authors have proposed Arc-Shaped Dampers with mild steel and aluminum. In order to investigate seismic performance of the proposed damper, repeated loading te...
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Veröffentlicht in: | Memoirs of the Faculty of Engineering, Osaka City University Osaka City University, 2007-12, Vol.48, p.17-25 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Since significant damages during 1995 Kobe Earthquake, one of urgently needed is to retrofit frame type timber structures. In responding, the authors have proposed Arc-Shaped Dampers with mild steel and aluminum. In order to investigate seismic performance of the proposed damper, repeated loading tests were conducted focusing on hysteretic characteristics and effect of damping. Following results were obtained: 1) In both material dampers, maximum load in compression is smaller than that in tension and during 1/15 drift angle, rapid load increase is observed in tension, 2) Mild steel damper has high damping effect in larger drift angle, but not in smaller range, and 3) Aluminum damper provides higher damping in each drift angle than mild steel damper. |
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ISSN: | 0078-6659 |