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http://dx.doi.org/10.9712/KASS.2015.15.3.051

Evaluation of Vibration Control Performance of Outrigger Damper System for Tall Buildings Subjected to Wind Loads  

Yoon, Sung-Wook (Dept. of Architecture, Grad. School, Yeungnam University)
Lee, Lyeong-Kyeong (Dept. of Architecture, Grad. School, Yeungnam University)
Kim, Kwang-Il (Dept. of Architecture, Grad. School, Yeungnam University)
Kim, Hyun-Su (Div. of Architecture, Architectural & Civil Engrg., Sunmoon Univ.)
Kang, Joo-Won (School of Architecture, Yeungnam University)
Publication Information
Journal of Korean Association for Spatial Structures / v.15, no.3, 2015 , pp. 51-60 More about this Journal
Abstract
Recently, the concept of damped outrigger system has been proposed for tall buildings. But, structural characteristics and design method of this system were not sufficiently investigated to date. In this study, the dynamic response control performance of outrigger damper has been analyzed. To this end, a simplified analysis model with outrigger damper system has been developed. An artificial wind of 1000 seconds with 0.1 second time steps was generated by using a Kaimal spectrum. Analysis results show that outrigger damper system is more effective up to 20-23% in the control of dynamic response compared to conventional outrigger system. The increase of outrigger damper capacity usually results in the improved control performance. However, it is necessary to select that proper stiffness and damping values of the outrigger damper system because, the outrigger damper having large capacity is result in heavy financial burden.
Keywords
Outrigger damper system; Wind load; Dynamic response control; Optimal design; Time history analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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