Buckling Restrained Braces can not only express the strength considered at the time of design, but also reduce the seismic load by energy dissipation according to the plastic behavior after yield deformation of the steel core. The physical characteristics and damping effect may be different according to the buckling prevention method of the steel core by the lateral restraint element. Accordingly, in this study, To compare hysteresis characteristics, Specimen(BRB-C) filled with mortar, specimen(BRB-R) combined with a buckling restraint ring and Specimen(BRB-EP) filled with engineering plastics was fabricated, and a cyclic loading test was performed. As a result of the cyclic loading test, the maximum compressive strength, cumulative energy dissipation and ductility of each test specimen was similar. But in case of the cumulative energy dissipation and ductility, BRB-C filled with the mortar specimen showed the lowest. This is considered to be because the gap between the steel core and the reinforcing material for plastic deformation was not uniformly formed by pouring mortar around the core part.

Abstract
1. 서론
2. 비좌굴가새 개요
    2.1 비좌굴가새의 구성
    2.2 비좌굴가새의 설계특성
3. 구조성능실험
    3.1 실험체 계획 및 실험방법
    3.2 실험결과
4. 결론
감사의 글
References

• 김유성(㈜플러스구조, 박사수료) | Kim Yu-Seong (Plus Structural Engineers & Associates Manager)
• 이준호(서일대학교. 건축공학과 조교수, 공학박사) | Lee Joon-Ho (School of Architecture, Seoil University)
• 김기철(서일대학교 건축공학과 교수) | Kim Gee-Chul (School of Architecture, Seoil University) Corresponding author