The Seismic Design Code for High Pressure Gas Facilities was established in 1982 in advance of those in other industrial fields, the only exception being that for nuclear power plants. In 1995, Hyogoken Nanbu earthquake caused approximately 6000 deaths and more than $1 billion (US) loss of property in the Kobe area, Japan. This unexpected disaster underlined the idea that industrial facilities should pay special consideration to damages including ground failure due to the liquefaction. Strong ground motions caused serious damage to urban structures in the area. Thus, the Seismic Design Code of the High Pressure Gas Facilities were improved to include two-step design assessments, that is, for Level 1 earthquakes (operating basis earthquake: a probable strong earthquake during the service life of the facilities), and Level 2 earthquakes (safety shutdown earthquake: a possible strongest earthquake with extremely low probability of occurrence). For Level 2 earthquakes, ground failure by possible liquefaction will be taken into account. For a Level 1 earthquake, the required seismic performance is that the system must remain safe without critical damage after the earthquake, including no gas leakage. For a Level 2 earthquake, the required seismic performance is that the system must remain safe without gas leakage. This means a certain non-elastic deformation without gas leakage may be allowed. The High Pressure Gas Safety Institute of Japan set up the Seismic Safety Promotion Committee to modify their code, in advance of other industries, and has continued to investigate more effective seismic design practices for more than 5 years. The final version of the guidelines has established design practices for the both Level 1 and Level 2 earthquakes. In this paper, the activities of the committee, their new design concepts and scope of applications are explained.
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February 2004
Technical Papers
Development of Seismic Design Code for High Pressure Gas Facilities in Japan
Heki Shibata, Professor Emeritus,
Heki Shibata, Professor Emeritus
University of Tokyo, 1-5-203 Sakurajousui 4, Setagaya-ku, Tokyo, 156-0045, Japan
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Kohei Suzuki, Professor,
Kohei Suzuki, Professor
Department of Mechanical Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
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Masatoshi Ikeda
Masatoshi Ikeda
High Pressure Gas Industry Division, High Pressure Gas Safety Institute of Japan, 4-3-9 Toranomon, Minato-ku, Tokyo, 105-8447, Japan
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Heki Shibata, Professor Emeritus
University of Tokyo, 1-5-203 Sakurajousui 4, Setagaya-ku, Tokyo, 156-0045, Japan
Kohei Suzuki, Professor
Department of Mechanical Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
Masatoshi Ikeda
High Pressure Gas Industry Division, High Pressure Gas Safety Institute of Japan, 4-3-9 Toranomon, Minato-ku, Tokyo, 105-8447, 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): 2-8 (7 pages)
Published Online: February 26, 2004
Article history
Received:
September 26, 2003
Revised:
October 13, 2003
Online:
February 26, 2004
Citation
Shibata, H., Suzuki, K., and Ikeda, M. (February 26, 2004). "Development of Seismic Design Code for High Pressure Gas Facilities in Japan ." ASME. J. Pressure Vessel Technol. February 2004; 126(1): 2–8. https://doi.org/10.1115/1.1638788
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