Earthquake isolation technology for industrial facilities

Research, development and applications in Japan

Authors

  • T. Fujita University of Tokyo, Tokyo, Japan

DOI:

https://doi.org/10.5459/bnzsee.18.3.224-249

Abstract

In Japan earthquake isolation technology has become increasingly necessary with the growing dominance of so-called "high technology" industries and is now being used to provide effective aseismic protection for precision equipment which is of major importance in such countries. The present applications are for computer systems and semiconductor manufacturing equipment. For computers, particularly those of banks, earthquake isolation of the floors is widely used. For semiconductor manufacturing equipment, earthquake isolation has begun to be used for the components; the isolation of the floors will follow. For both applications, earthquake isolation has not yet been used for entire buildings, but is expected in the near future. Promising applications for the future include bio-technology facilities, highly automated factories and nuclear plants, especially fast breeder reactor power stations.

References

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Fujita, T., Hattori, S. and Ishida, J., "An Earthquake Isolation Floor Using Pre-Tensioned or Pre-Compressioned Springs", SEISAN-KENKYU, Vol. 32, No. 8, 1980 (in Japanese).

Fujita, T., Hattori, S. and Ishida, J., "An Earthquake Isolation Floor Using Pre-Tensioned Springs (Part I: Fundamental Study on the Pre-Tensioned Spring Units Used for the Floor)", Trans. of the Japan Soc, Mech. Eng., Vol. 49, No. 441, Ser. C, 1983 (in Japanese).

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Okada, H. Tsunoda, T., Seki, M., Teramura, A., Nakamura, T. and Nohata, A., "Study on Earthquake Base Isolation System for Structures (Part I: Over-All Research Program), (Part II: Static Tests), (Part III: Dynamic Characteristic Tests) and (Part IV: Earthquake Response Tests)", ibid.

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Published

30-09-1985

How to Cite

Fujita, T. (1985). Earthquake isolation technology for industrial facilities: Research, development and applications in Japan. Bulletin of the New Zealand Society for Earthquake Engineering, 18(3), 224–249. https://doi.org/10.5459/bnzsee.18.3.224-249

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