Shaking table test of 4-DOF base-isolated structure with variable oil damper

Hiroshi Miki; Ikenaga Masahiro; Ikago Kohju; Inoue Norio

doi:10.3130/aijt.19.453

Shaking table test of 4-DOF base-isolated structure with variable oil damper

Hiroshi Miki, Ikenaga Masahiro, Ikago Kohju, Inoue Norio

Research output: Contribution to journal › Article › peer-review

Abstract

A new device is proposed for controlling seismic displacement of a base-isolated building structure by means of a variable oil damper (VOD). This damper provides large damping to reduce the response displacement of the base-isolation layer in severe or extreme seismic events, whereas it provides small damping to reduce the response acceleration of the superstructure in moderate seismic events. Through shaking table tests, it is shown that the VOD can effectively reduce the maximum displacement of the base-isolation layer without increasing the damper force. Comparisons on analytical and experimental results verified the validity of the proposed analysis method.

Original language	English
Pages (from-to)	453-456
Number of pages	4
Journal	AIJ Journal of Technology and Design
Volume	19
Issue number	42
DOIs	https://doi.org/10.3130/aijt.19.453
Publication status	Published - 2013 Jun 1

Keywords

Base isolation
Displacement control
Passive control
Shaking table test
Variable oil damper

ASJC Scopus subject areas

Architecture
Building and Construction

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abstract = "A new device is proposed for controlling seismic displacement of a base-isolated building structure by means of a variable oil damper (VOD). This damper provides large damping to reduce the response displacement of the base-isolation layer in severe or extreme seismic events, whereas it provides small damping to reduce the response acceleration of the superstructure in moderate seismic events. Through shaking table tests, it is shown that the VOD can effectively reduce the maximum displacement of the base-isolation layer without increasing the damper force. Comparisons on analytical and experimental results verified the validity of the proposed analysis method.",

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AU - Norio, Inoue

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