Application of magnetorheological fluid to semi-active control of building structures by BRI and partners

Hideo Fujitani; Hiroshi Sodeyama; Katsuhiko Hata; Takeshi Hiwatashi; Yoichi Shiozaki; Namihiko Inoue; Satsuya Soda

Application of magnetorheological fluid to semi-active control of building structures by BRI and partners

Hideo Fujitani, Hiroshi Sodeyama, Katsuhiko Hata, Takeshi Hiwatashi, Yoichi Shiozaki, Namihiko Inoue, Satsuya Soda

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

Abstract

This study was aimed at developing an application technology of magnetorhological (MR) fluid with improving the stability of MR fluid. Variable damper using MR fluid (MR damper) has been expected to control the response of building structures in recent years, because of its large force capacity and variable force characteristics. The MR damper changes the controlling force by adjusting the magnetic field with electric current, and can control the damping forces simply. The semi-active control using MR damper stabilizes the response of the building in earthquake better than the conventional passive control. Authors developed some MR dampers and conducted shaking table tests for the research to improve the performance of building structures against earthquake. A 40kN MR damper with 500mm (+/-250mm) stroke was constructed. Authors conducted a shaking table test of the three-story large-scale structure that has an isolated base using MR damper, and the effectiveness of MR damper was verified. Finally, a 400kN MR damper was constructed and installed in an actual base-isolated residential building in order to improve the performance of the building.

Original language	English
Pages (from-to)	2126-2133
Number of pages	8
Journal	Key Engineering Materials
Volume	270-273
Issue number	III
Publication status	Published - 2004

Keywords

Implementation to an actual building
Large-scale shaking table test
Magnetorheological (MR) Fluid
Semi-active control
Variable damper

ASJC Scopus subject areas

Ceramics and Composites
Chemical Engineering (miscellaneous)

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Application of magnetorheological fluid to semi-active control of building structures by BRI and partners. / Fujitani, Hideo; Sodeyama, Hiroshi; Hata, Katsuhiko; Hiwatashi, Takeshi; Shiozaki, Yoichi; Inoue, Namihiko; Soda, Satsuya.

In: Key Engineering Materials, Vol. 270-273, No. III, 2004, p. 2126-2133.

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

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AU - Shiozaki, Yoichi

AU - Inoue, Namihiko

AU - Soda, Satsuya

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