2024 Volume 89 Issue 825 Pages 1202-1213
Several semi-active control laws were proposed to reduce the maximum response of the benchmark test model of the base-isolation system, and their effectiveness was verified through E-Defense experiments.
1. Control performance and response reduction effects of testing control laws could be appropriately evaluated considering the equivalent damping factor for each semi-active controlled response.
2. Proposed semi-active control laws could be classified as two typical types depending on their force-velocity characteristics.
3. Proposed semi-active control laws could reduce the maximum displacement responses without increasing the absolute acceleration of the superstructure, while the control performance depended on the seismic motion characteristics.
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