In this study, the optimal seismic design methodology which can consider the structural integrity of both piping systems and elasto-plastic support devices are developed. This methodology employs genetic algorithm and can search the optimal conditions such as supporting locations, capacity and stiffness of supporting devices. A lead extrusion damper is treated here as a typical elasto-plastic damper. Numerical simulations are performed using a simple piping system model for the various kinds of seismic waves with different frequency characteristics. As a result, it is shown that the optimal seismic design methodology proposed here is applicable to the seismic design of piping systems supported by elasto-plastic dampers subjected to the seismic waves with various kinds of frequency characteristics.
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ASME 2007 Pressure Vessels and Piping Conference
July 22–26, 2007
San Antonio, Texas, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4286-X
PROCEEDINGS PAPER
Applicability of Optimal Seismic Design Methodology for Piping Systems Subjected to Seismic Waves With Various Frequency Characteristics Available to Purchase
Tomohiro Ito,
Tomohiro Ito
Osaka Prefecture University, Sakai, Osaka, Japan
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Katsuhisa Fujita,
Katsuhisa Fujita
Osaka Prefecture University, Sakai, Osaka, Japan
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Masashi Michiue
Masashi Michiue
Osaka Prefecture University, Sakai, Osaka, Japan
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Tomohiro Ito
Osaka Prefecture University, Sakai, Osaka, Japan
Katsuhisa Fujita
Osaka Prefecture University, Sakai, Osaka, Japan
Masashi Michiue
Osaka Prefecture University, Sakai, Osaka, Japan
Paper No:
PVP2007-26436, pp. 269-275; 7 pages
Published Online:
August 20, 2009
Citation
Ito, T, Fujita, K, & Michiue, M. "Applicability of Optimal Seismic Design Methodology for Piping Systems Subjected to Seismic Waves With Various Frequency Characteristics." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 8: Seismic Engineering. San Antonio, Texas, USA. July 22–26, 2007. pp. 269-275. ASME. https://doi.org/10.1115/PVP2007-26436
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