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http://dx.doi.org/10.5000/EESK.2007.11.2.047

Performance Evaluation of Semi-Active Tuned Mass Damper for Elastic and Inelastic Seismic Response Control  

Lee, Sang-Hyun (단국대학교 건축대학 건축공학과)
Chung, Lan (단국대학교 건축대학 건축공학과)
Woo, Sung-Sik (단국대학교 건축대학 건축공학과)
Cho, Seung-Ho (단국대학교 건축대학 건축공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.11, no.2, 2007 , pp. 47-56 More about this Journal
Abstract
In this study, tile performance of a passive tuned mass damper (TMD) and a semi-active tuned mass damper (STMD) was evaluated in terms of seismic response control of elastic and inelastic structures under seismic loads. First, elastic displacement spectra were obtained for the damped structures with a passive TMD, which was optimally designed using the frequency and damping ratio presented by previous study, and with a STMD proposed in this study. The displacement spectra confirm that STMD provides much better control performance than passive md with less stroke. Also, the robustness or the TMD was evaluated by off-tuning the frequency of the TMD to that of the structure. Finally, numerical analyses were conducted for an inelastic structure of which hysteresis was described by Bouc-Wen model and the results indicated that the performance of the passive TMD of which design parameters were optimized for a elastic structure considerably deteriorated when the hysteretic portion or the structural responses increased, while the STMD showed about 15-40% more response reduction than the TMD.
Keywords
semi-active TMD; inelastic structure; displacement spectra; stroke; robustness; Bouc-Wen Model;
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Times Cited By KSCI : 1  (Citation Analysis)
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