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Architecture & Urban Research Institute

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대한건축학회|대한건축학회논문집 구조계 2016년 1월

논문명 재 조립형 이중보강재를 가지는 좌굴방지가새의 이력특성 / Hysteresis Characteristics of Buckling Restrained Brace with Steel Double-Restraining Elements of Built-up Type
저자명 신승훈 ; 오상훈
발행사 대한건축학회
수록사항 대한건축학회논문집 구조계, Vol.32 No.01 (2016-01)
페이지 시작페이지(23) 총페이지(12)
ISSN 1226-9107
주제분류 구조
주제어 좌굴방지가새 ; 강재코어 ; 보강재 ; 좌굴안정성 ; 이력거동 ; 내진성능 ; Buckling Restrained Brace ; Steel Core ; Restraining Element ; Buckling Stability ; Hysteresis Behavior ; Seismic Performance
요약2 The conventional braced system is generally accepted as the lateral load resisting system for steel structures due to efficient story drift control and economic feasibility. But lateral stiffness of the structure decreases when buckling happens to the brace in compression, so that it results in unstable structure with unstable hysteresis behavior through strength deterioration. Buckling restrained brace(BRB) system, in which steel core is confined by mortar/concrete-filled tube, represents stable behavior in the post-yield range because the core's buckling is restrained. So, seismic performance of BRB is much better than that of conventional braced system in point of energy absorption capacity, and it is applied the most in high seismicity regions as damper element. In this study, we examined a few of weaknesses of general-shaped BRB and improved them, so that suggested new shape of BRB. It is made up of two steel restraining elements with non-filled material and the steel core. The new shapes of BRB were tested according to AISC(2010) and evaluated seismic performances and hysteresis characteristics.
소장처 대한건축학회
언어 한국어
DOI http://dx.doi.org/10.5659/JAIK_SC.2016.32.1.23
분석서지
건축구조 > 철골구조 > 부재 > 가새