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Title |
Experimental Study on Structural Performance of Steel Slit Damper According to Restrained Out-of-plane Deformation
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Authors |
김진우(Jin-Woo Kim) ; 권유진(U-Jin Kwon) ; 최광용(Kwang-Yong Choi) ; 김영주(Young-Ju Kim) ; 박해용(Hae-Yong Park) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.1.86 |
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Keywords |
강재 슬릿댐퍼; 반복가력실험; 반복이력; 구조성능; 변형능력; 피로곡선 Steel slit damper; Cyclic loading test; Repeated hysteresis; Structural performance; Deformation capacity; Fatigue curve |
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Abstract |
In this study, a supplementary detail capable of restraining out-of-plane deformation was proposed for steel slit dampers, and a constantamplitude cyclic loading test was performed with the application of the proposed detail and the shape ratio of the damper as variables. Repeated hysteresisand cumulative plastic deformation according to the test results were analyzed. Repeated hysteresis of the slit damper with the proposed detail showeda stable spindle-shaped hysteresis within the set variable range, and no out-of-plane deformation of the damper was observed until ultimate state. Itwas confirmed that the restraining panel effect through the application of the proposed details is effective in terms of both the strength and deformationcapacity of the damper. In addition, experimental parameters for the fatigue curve evaluation of slit dampers were derived in this study. Based on theresults, it is judged that quantitative comparison of structural performance with various types of seismic devices will be possible in the future.
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