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논문 기본 정보

자료유형
학술저널
저자정보
황재승 (전남대학교) 박성철 (전남대학교) 강기주 (전남대학교)
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第29卷 第9號
발행연도
2013.9
수록면
21 - 29 (9page)

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A damper system with Kogome truss structure which is known to have higher resistance to plastic buckling and lower anisotropy than other truss periodic cellular metal is introduced and its mechanical properties are covered through theoretical analysis and experimental tests. The effects of design variables such as the thickness of wire, geometric shape of the damper on the shear strength, Young"s modulus is theoretically estimated and verified experimentally. By integrating the experimental results, analytic models of damper are provided. In addition, hysteresis loop of the damper under cyclic shear loading is experimentally performed to investigate the energy dissipation capacity and the performance deterioration by the fatigue. Using the hysteresis properties from the experimental tests, the mathematical models of Kagome damper can be predicted from analytical Kagome truss structure ideally assumed to be hinged connected and with no curvature of wire. In order to verify the effectiveness and applicability of the mathematical models, numerical analysis was performed for the 5-story pilotis-structure. From the numerical study, it is found that the mathematical model with smaller yielding strain has an enough energy dissipation effect to reduce the displacement and base shear force of the structure. It is also shown that the mathematical model modified with Young" modulus ratio, yielding stress ratio from theoretic model can be used to predict the hysteresis loop of Kogome damper and the improvement of seismic performance.

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Abstract
1. 서론
2. 카고메 트러스 댐퍼
3. 성능실험
4. 결론
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