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Proceedings Paper

Analytical and numerical study of a smart sliding base isolation system for seismic protection of buildings
Author(s): Glenn J. Madden; Nat Wongprasert; Michael D. Symans
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Paper 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.

Paper Details

Date Published: 20 April 2000
PDF: 12 pages
Proc. SPIE 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, (20 April 2000); doi: 10.1117/12.383148
Show Author Affiliations
Glenn J. Madden, Degenkolb Consulting Structural Engineers (United States)
Nat Wongprasert, Washington State Univ. (United States)
Michael D. Symans, Washington State Univ. (United States)

Published in SPIE Proceedings Vol. 3988:
Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu, Editor(s)

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