20 April 2000 Analytical and numerical study of a smart sliding base isolation system for seismic protection of buildings
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Abstract
The seismic response of a single-story steel building frame with a smart base isolation system is evaluated. The isolation system consists of sliding bearings combined with an adaptive fluid damper. The damping capacity of the fluid damper can be modulated in real-time based on feedback from the measured ground motion and superstructure response. The adaptive capabilities of the fluid damper enable the isolation system displacement to be controlled while simultaneously limiting the interstory drift response of the superstructure. This paper concentrates on the development of analytical models and control algorithms for the isolation system components and the superstructure. In general, the results from numerical simulations demonstrate that, for disparate earthquake ground motions, the smart isolation system is capable of simultaneously limiting both the response of the bearings and the superstructure.
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Glenn J. Madden, Nat Wongprasert, Michael D. Symans, "Analytical and numerical study of a smart sliding base isolation system for seismic protection of buildings", Proc. SPIE 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, (20 April 2000); doi: 10.1117/12.383148; https://doi.org/10.1117/12.383148
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KEYWORDS
Control systems

Earthquakes

Buildings

Near field

Algorithm development

Motion measurement

Numerical simulations

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