Enhancing displacement control performance of base-isolated structures using TVMD and SIS
Shotaro Kezuka, Kohju Ikago
Abstract. Base isolation of structures allows for large isolator displacements during strong ground motions, which reduces the seismic forces acting on a superstructure. However, recent large-scale earthquakes have triggered long-period ground motions, raising concerns regarding excessive isolator displacement beyond design limits. This study proposes a method to selectively increase damping around the isolation period using an inerter-based dynamic vibration absorber, thereby reducing excessive deformation in the isolation layer without compromising the isolation effect.
Keywords
Displacement Control Design, Seismically Isolated Structures, Inerter, Long-Period Ground Motion
Published online 3/25/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Shotaro Kezuka, Kohju Ikago, Enhancing displacement control performance of base-isolated structures using TVMD and SIS, Materials Research Proceedings, Vol. 50, pp 155-162, 2025
DOI: https://doi.org/10.21741/9781644903513-19
The article was published as article 19 of the book Structural Health Monitoring
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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