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Real-time Hybrid Testing a Building Structure Equipped with Full-scale MR dampers and Application of Semi-active Control Algorithms  

Park, Eun-Churn (단국대학교 건축공학과)
Lee, Sung-Kyung (단국대학교 건축공학과)
Lee, Heon-Jae (삼성엔지니어링 연구원)
Moon, Suk-Jun (한국기계연구원)
Jung, Hyung-Jo (한국과학기술원 건설 및 환경공학과)
Min, Kyung-Won (단국대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.21, no.5, 2008 , pp. 465-474 More about this Journal
Abstract
The real-time hybrid testing method(RT-HYTEM) is a structural testing technique in which the numerical integration of the equation of motion for a numerical substructure and the physical testing for an experimental substructure are performed simultaneously in real-time. This study presents the quantitative evaluation of the seismic performance of a building structure installed with an passive and semi-active MR damper by using RT-HYTEM. The building model that was identified from the force-vibration testing results of a real-scaled 5-story building is used as the numerical substructure, and an MR damper corresponding to an experimental substructure is physically tested by using the universal testing machine(UTM). The RT-HYTEM implemented in this study is validated because the real-time hybrid testing results obtained by application of sinusoidal and earthquake excitations and the corresponding analytical results obtained by using the Bouc-Wen model as the control force of the MR damper respect to input currents were in good agreement. Also for preliminary study, some semi-active control algorithms were applied to the MR damper in order to control the structural responses optimally. Comparing between the test results of semi-active control using RT-HYTEM and numerical analysis results show that the RT-HYTEM is more resonable than numerical analysis to evaluate the performance of semi-active control algorithms.
Keywords
real-time hybrid test method; large-scale mr damper; bouc-wen model; semi-active control algorithms;
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