This research is an experimental study attempting to use MR-dampers to control the complex behavior of multi-span bridge structures due to external loads such as seismic loads. For the purposes of this study, the model of components in each structure is identified, and then based on the results, a simplified system of the structure is derived. The performance of MR-dampers for complex behavior control is evaluated separately, according to the self-performance of MR-dampers and according to the performance based on applications of control algorithms. Based on the simplified system, Lyapunov control algorithm and Clipped-optimal control algorithm are applied. As a result, MR-damper is proven to be effective in the complex behavior control of multi-span bridge structures.

• 허광희(건양대학교 해외건설건설플랜트학과 교수, 공학박사) | Heo, GwangHee
• 김충길(충남대학교 토목공학과, 박사과정) | Kim, ChungGil 교신저자
• 최상순((사)한국스마트구조시스템연구원 연구원, 공학사) | Choi, Sangsoon
• 서상구(충남도립대학 건설정보학과 교수, 공학박사) | Seo, SangGu
• 이진옥(충남대학교 토목공학과 교수, 공학박사) | Lee, ChinOk