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Title |
Vibration Control Effect of the Framed Building Structures according to the Stiffness Ratio of Exo-type Damping System and Damper Device Yield Ratio
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Authors |
허무원(Moo-Won Hur) ; 이상현(Sang-Hyun Lee) ; 천영수(Young-Soo Chun) |
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DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.5.038 |
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Keywords |
등방성 감쇠장치 ; 강성비 ; 감쇠장치의 항복비 ; 제진효과 ; 설계지침 Isotropic damping divice ; Stiffness ratio ; Damper device yield ratio ; Vibration control ; Guidelines |
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Abstract |
In this paper, the vibration control effect of the Exo-type damping system was investigated by applying the Kagome dampers to 15-story and 20-story frame structure apartment. A new Exo-type damping system composed of the dampers and supporting column was proposed in the previous work and numerical analysis were performed to investigate the effects of optimum stiffness ratio between controlled structure and supporting column, the size of damper and yield ratio of the damper. The numerical analysis results of a structure with Exo-type damping system up to the third story showed that the stiffness ratio should be higher than 7.0 and the damper device yield ratio be at least 8.0% (Vdamper/Vbase shear) to effectively reduce the base shear and the maximum drift of the uppermost story. When the Exo-type damping system was installed up to the fifth story, the stiffness ratio should be higher than 2.5 and damper device yield ratio needs to be at least 3.5% (Vdamper/Vbase shear) for obtaining the target performance.
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