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Title |
Performance Comparison of Steel Dampers with or without Lateral Deformation Prevention Details and Strut Shapes
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DOI |
https://doi.org/10.11112/jksmi.2022.26.5.66 |
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Keywords |
강봉 댐퍼; 강판댐퍼; 록킹 거동; 횡변형 방지 상세 Steel rod damper; Steel plate damper; Rocking behavior; Lateral deformation prevention detail |
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Abstract |
In this study, the experimental results of 7 dampers with the same strut height and similar cross-sectional area were compared based on the existing research results on steel dampers with rocking behavior. As steel plate dampers, SI-260, SV-260, SS-260 without Lateral deformation prevention detail(Ldpd), I-1, V-1, S-1 with Ldpd, and R20-260 with steel rod damper were evaluated. In addition, R15-260, which has a cross-sectional area of ??0.56 times than other dampers, was also reviewed to appropriately evaluate the behavior of the steel rod damper. An important study result is the application superiority of the steel rod damper, which improved the unidirectional behavior of the steel plate dampers. This was proved in the moment-resistance capacity and displacement ratio evaluation. As a result of the evaluation, the R20-260, a steel bar damper, was evaluated as having the best performance. In addition, it is judged to have sufficient seismic resistance as it shows deformability up to a displacement ratio of 2.0.
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