AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
Structures
A FAIL-SAFE BRAKING DEVICE FOR SEISMIC ISOLATION AGAINST MEGA EARTHQUAKES
Takahito NAKAMURATakashi KATOShuhei KANEKOChou KEIMasaru KIKUCHI
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2022 Volume 28 Issue 70 Pages 1154-1159

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Abstract

A new fail-safe braking device has been developed to protect seismically-isolated structures against ground motions caused by mega earthquakes. The purpose of the device is avoiding collision between superstructure and retaining wall in base isolation layer, and keeping superstructure within a minimum damage. A full-scale prototype fail-safe braking device was fabricated, and loading tests were carried out. Expected performance was exhibited in the test. Seismic response analysis was also conducted to confirm the effectiveness of the device.

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© 2022, Architectural Institute of Japan
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