Proceedings of the Earthquake Engineering Society of Korea Conference (한국지진공학회:학술대회논문집)
- 2002.03a
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- Pages.459-466
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- 2002
Seismic Response Control of Bridge Structures Using Semi-Active Fuzzy Control of MR Damper
MR Damper의 준능동 퍼지제어이론을 이용한 교량구조물의 지진응답제어
Abstract
In this study magneto-rheological damper, a kind of semi-active device, is used to reduce the response of pier and girder of bridge structure subjected to seismic excitation and as a effective semi-active control method fuzzy control technique considering nonlinear behavior of the damper dynamics. By Numerical simulations of a nine span continuous bridge system subjected to various earthquakes, fuzzy control technique is compared with existing clipped optimal control technique in control performance which reduces displacement of pier and girder simultaneously. In the comparison of the control performance within a control force limit, it is confirmed that presented fuzzy control technique more efficiently reduce the pier and girder displacement than clipped optimal control technique based on optimal control theory.
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