After the Great Hyogoken-nanbu Earthquake (1995), the Seismic Design Code for High-Pressure Gas Facilities of Japan was amended. This amended code requires two-step seismic assessments, that is, the evaluation of the Level 1 Required Seismic Performance for Level 1 earthquakes and that of the Level 2 Required Seismic Performance for Level 2 earthquakes. Seismic design of piping systems is newly included within the scope of the code. For Level 2 earthquakes, possible ground displacement due to liquefaction is taken into account. The evaluation method of the Level 1 Required Seismic Performance is specified in the amended code and that of the Level 2 Required Seismic Performance is proposed in the guideline. The evaluation of the former is based on elastic design and that of the latter on elastoplastic design. The propriety of the design criteria of piping systems with respect to ground displacement was confirmed by large deformation tests. In this paper, seismic design criteria of piping systems in the amended code and the evaluation method of the Level 2 Required Seismic Performance proposed in the guideline are introduced, and the results of the large deformation tests are reported.
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February 2004
Technical Papers
New Seismic Design Criteria of Piping Systems in High-Pressure Gas Facilities
Makoto Inaba,
Makoto Inaba
Toyo Engineering Corporation, Technology Research and Development Center, 8-1 Akanehama 2-chome, Narashino-shi, Chiba, Japan
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Masatoshi Ikeda,
Masatoshi Ikeda
High-Pressure Gas Safety Institute of Japan, High-Pressure Gas Industry Division, 4-3-9 Toranomon, Minato-Ku, Tokyo, Japan
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Nobuyuki Shimizu
Nobuyuki Shimizu
Iwaki Meisei University, Department of Mechanical Engineering, 5-5-1 Chuoudai-iino, Iwaki-shi, Fukushima, Japan
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Makoto Inaba
Toyo Engineering Corporation, Technology Research and Development Center, 8-1 Akanehama 2-chome, Narashino-shi, Chiba, Japan
Masatoshi Ikeda
High-Pressure Gas Safety Institute of Japan, High-Pressure Gas Industry Division, 4-3-9 Toranomon, Minato-Ku, Tokyo, Japan
Nobuyuki Shimizu
Iwaki Meisei University, Department of Mechanical Engineering, 5-5-1 Chuoudai-iino, Iwaki-shi, Fukushima, Japan
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division September 26, 2003; revision received October 13, 2003. Associate Editor: G. C. Slagis.
J. Pressure Vessel Technol. Feb 2004, 126(1): 9-17 (9 pages)
Published Online: February 26, 2004
Article history
Received:
September 26, 2003
Revised:
October 13, 2003
Online:
February 26, 2004
Citation
Inaba, M., Ikeda, M., and Shimizu, N. (February 26, 2004). "New Seismic Design Criteria of Piping Systems in High-Pressure Gas Facilities ." ASME. J. Pressure Vessel Technol. February 2004; 126(1): 9–17. https://doi.org/10.1115/1.1638789
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