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Structural Performance Evaluation of Buckling-Restrained Braces Made of High-Strength Steels  

Park, Man Woo (동부제강(주) 건재사업부 PEB설계팀)
Ju, Young Kyu (고려대학교 건축사회환경공학과)
Kim, Myeong Han (대진대학교 건축공학과)
Kim, Ji Young (대우건설기술연구원)
Kim, Sang Dae (고려대학교 건축사회환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.20, no.2, 2008 , pp. 355-364 More about this Journal
Abstract
The Buckling-Restrained Braces (BRB) has been developed to inhibit buckling and exhibit stable behavior under both tensile and compressive cycles. In this study, an experimental has been conducted by using the strength of its members and loading protocols as parameters to evaluate the structural performance of BRB (without in-filled concrete). Specimens are composed of an inner core and an outer tube with different steel strengths. When high-strength steels were used as inner cores, the ductility of BRB decreasedm and the requirements (Cumulative Plastic Ductility) of the AISC Seismic Provisions were not satisfied. However, when high-strength steels were used as inner cores instead of conventional strength steel cores, the maximum capacity increased significantly and displayed similar performance in total energy dissipation.
Keywords
Buckling-Restrained Brace; Steel Core; Constraining Steel Tube; Comulative Plastic Ductility;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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