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Simplified Seismic Response Analysis Method Using Reduced Model of Piping System

[+] Author Affiliations
Michiya Sakai, Ryuya Shimazu, Shinichi Matsuura

Central Research Institute of Electric Power Industry, Abiko, Japan

Ichiro Tamura

Chugoku Electric Power Company, Hiroshima, Japan

Paper No. PVP2018-84428, pp. V008T08A005; 6 pages
doi:10.1115/PVP2018-84428
From:
  • ASME 2018 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Prague, Czech Republic, July 15–20, 2018
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5171-5
  • Copyright © 2018 by ASME

abstract

In the seismic response analysis of piping systems, finite element analysis is performed with analysis method guidelines [1]–[4] established based on benchmark analysis. However, since it takes a great deal of effort to carry out finite element analysis, a simplified method to analyze the seismic response of complex piping systems is required. In this research, we propose a method to reduce an equivalent spring-mass system model with low degrees of freedom, which can take into account the main mode of the complicated piping system. Simplified seismic evaluation is carried out using this spring mass system model with low degrees of freedom, and the accuracy of response evaluation is confirmed by comparison with finite element analysis.

Copyright © 2018 by ASME
Topics: Piping systems

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