The seismic retrofits of existing structures have been focused on the control of structural responses which can be achieved by providing displacement capacity through inelastic ductile action at supplemental devices. Due to their hysteretic characteristics, it is expected to sustain damage through repeated inelastic behaviors including residual deformation which might increase repair costs. To solve such drawbacks of existing yielding devices, this study proposes a self-centering disc spring brace that sustains large axial deformation without structural damage while providing stable energy dissipation capacity. The hysteretic behaviors of suggested brace are first investigated based on the quasi-static cyclic test procedure. Experimental results present the effective self-centering behavior and an analytical model is then suggested in order to reasonably capture the flag-shaped hysteretic behavior of the disc spring brace.

1. 서론
2. DSB 시스템
    2.1 디스크 스프링의 구조적 특성
    2.2 DSB의 원리
3. DSB 실험
    3.1 실험체 개요
    3.2 DSB 실험결과
    3.3 DSB 해석모델 및 평가
4. 결론
감사의 글

• 박병태(정회원, 메트로티엔씨(주) 연구소장, 공학박사) | Park Byung-Tae (Metro T&C, Research Institute, CTO)
• 신동현(정회원, 부산대학교 건설융합학부 조교수, 공학박사) | Shin Dong-Hyeon (School of Urban, Architecture and Civil Engineering, Pusan National University) 교신저자