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Study on Seismic Safety Improvement of Mechanical Structure in Long Duration Earthquake

[+] Author Affiliations
Kazuhiro Yoshida, Osamu Furuya

Tokyo City University, Tokyo, Japan

Paper No. PVP2014-29008, pp. V008T08A015; 6 pages
  • ASME 2014 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Anaheim, California, USA, July 20–24, 2014
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4607-0
  • Copyright © 2014 by ASME


In the Great East Japan Earthquake (GEJE), the lot of seismic damage in hanging type mechanical structure with low damping occurred by a long duration earthquake. Therefore, the industrial function stopped at many facilities. Moreover, the fall from a ceiling of a mechanical structure and the falling off of some elements in a mechanical structure were connected for outbreak of the secondary damage such as a cut of an evacuation route. This study has been carried the seismic safety improvement of mechanical structure in long duration earthquake from an analytical and experimental approach. In this paper, the fundamental experimental results of falling mechanism of hanging type mechanical structure from a ceiling is shown, and analytical results using nonlinear model with hysteresis damping is described.

Copyright © 2014 by ASME



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