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Study on Seismic Safety Improvement of Hanging Type Mechanical Structure in Industrial Facilities During Long Duration Earthquake

[+] Author Affiliations
Osamu Furuya, Kazuhiro Yoshida, Sho Asaoka

Tokyo City University, Tokyo, Japan

Keiji Ogata, Nobuhiro Niiyama

Yacmo Co., LTD., Tokyo, Japan

Paper No. PVP2015-45366, pp. V008T08A043; 6 pages
  • ASME 2015 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Boston, Massachusetts, USA, July 19–23, 2015
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5703-8
  • Copyright © 2015 by ASME


A lot of seismic damages of hanging type mechanical structure in industrial facilities were occurred in Great East Japan Earthquake, and the industrial functions stopped at many facilities. Moreover, fallen damage of mechanical structures from a hanging in architectural structure and the falling off of some elements in mechanical structures caused a secondary damage such as severed evacuation route. This study has been carried out to upgrade the seismic safety improvement of hanging type mechanical structure in several industrial and plant facilities from analytical and experimental approaches. In this paper, the experimental result in shaking table test is shown to investigate fallen mechanism of hanging type mechanical structure, and analytical results using nonlinear model with hysteresis damping is described. Furthermore, the evaluation of damage mechanism based on low cycle fatigue damage is conducted.

Copyright © 2015 by ASME



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