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Seismic Response Analysis of Multiple Supported Piping System Considering Friction Characteristics of Support

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

Kyoto Institute of Technology, Kyoto, Japan

Paper No. PVP2011-57037, pp. 13-22; 10 pages
doi:10.1115/PVP2011-57037
From:
  • 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

abstract

In this study, a practical method for obtaining the nonlinear seismic maximum response properties of multiple supported piping systems with friction characteristics in industrial plants such as the nuclear power plant and petrochemical plant is presented. In this method, the response reduction effects of friction are effectively considered. The method also facilitates the calculation of maximum nonlinear responses by using those of the linear piping-supporting system. By numerical simulations with a simple 2DOF model, the reduction effect of friction on the maximum acceleration responses of multiple supported piping systems are evaluated in terms of “response reduction factor”. After summarizing the characteristics of the response reduction factor obtained for various system parameters, a practical method for obtained this factor using the maximum linear response of piping system can be introduced. Finally, the maximum response calculated by the proposed method is presented for practical use.

Copyright © 2011 by ASME

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