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A Load Combination Method for Seismic Design of Multiple Supported Piping Systems With Friction Characteristics: Part 2—Correlated Excitations Considering Characteristics of Supports

[+] Author Affiliations
Tatsuya Yamauchi, Kazumasa Tsuchikawa, Atsushi Yokota, Arata Masuda, Akira Sone

Kyoto Institute of Technology, Kyoto, Japan

Paper No. PVP2011-57016, pp. 3-12; 10 pages
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4458-8
  • Copyright © 2011 by ASME


Seismic response analysis of piping systems with friction characteristics to multiple support excitations is presented. By this analysis, the maximum responses of piping system are calculated and “response reduction factor” due to friction are taken into account by use of a stationary random vibration theory approach. Using a simple analytical SDOF piping system with friction characteristics to two support excitations, This method is supplied to various support cases with two support excitations and friction characteristics and the maximum responses of piping is calculated. From these calculation results, it is clear that the maximum acceleration responses of nonlinear piping systems can be reduced due to the friction effect. Finally, the conventional equation of the response reduction factor and the maximum response calculated by the proposed method are presented for practical use.

Copyright © 2011 by ASME



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