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DE90 012645 Proceedings of the First International Seminar on Seismic CONF-8906221- DE90 012645 Proceedings of the First International Seminar on Seismic Base Isolation for Nuclear Power Facilities August 21-22, 1989 San Francisco, California, USA DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United Stales Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise docs not necessarily constitute or imply its endorsement, recom- mendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United Stairs Government or any agency thereof. ft post-Conference Seminar of the 10th International Conference on Structural Kechanics in Reactor Technology (SMiRT), August W-18, 1989, Anaheim, California, USA Irs, JWSTR1BUTI0N Of THIS DCOTc,V7 .'$ BKLIM'TEP Organizers: Dr. Yao-Wen Chang Reactor Analysis and Safety Division Argonne National Laboratory Argonne, Illinois U.S.A. Or. Talcashi Kuroda Nuclear Power Division Shinizu Corporation Tokyo, Japan Dr. Alessandro Hartelli ENEA-Department of Innovative Reactors Bologna, Italy Contents Page Preface: Overview and Summary of First International Seminar on Seismic Base Isolation for Nuclear Power Facilities, Vac-Wen Chang (ANL - USA), Takashi Kuroda (Shimizu Corp.-NP - Japan), Alessandro Martelii (ENEA-DRI - Italy) 1 Keynote Address: Commentary on U.S. R4D Programs for Seismic Base Isolation, A.J. Eggenberger (NSF - USA) 9 Technical Papers Seismic Isolation of Nuclear Power Plants, EDF's Philosophy, Ch. Coladant (EDF - France) 15 U.K. Contribution to CEGB-EPRI-CRIEPI Program on Seismic Isolation, N.M. Austin (NNC Ltd. - UK), S. Hattori (CRIEPI - Japan), E. Rodwell (EPR1 - USA), G.J. Womack (CEGB - UK) 3M ENEA Activities on Seismic Isolation of Nuclear and Non-nuclear Structures, Alessandro Martelli, Paolo Masoni, Massimo Forni, Maurizio Indirli, Bruno Spandoni (ENEA-DRI - Italy), Giacomo Di Pasquale, Vittoria Lucarelli, Tito Sano (ENEA-DISP - Italy), Giuseppe Bonacina, Aldo Castoldi (ISMES - Italy) 57 Recent Progress and Development of Building Vibration Control Systems in Japan, Masanori Izumi (Tohoku Univ. - Japan) m Seismic Isolation in New Zealand, R.I. Skinner, U.H. Robinson, G.H. McVerry (DSIR - New Zealand) 88 Applicability of Base-Isolation R&D in Non-Reactor Facilities to a Nuclear Reactor Plant, Ralph W. Seidensticker (ANL - USA) 107 Seismic Isolation Development for the U.S. Advanced Liquid-Metal Reactor Program, E.L. Gluekler (GE-NE - USA), C.C. Bigelow (DOE - USA), V. DeVita (ETEC - USA), J.H. Kelly (UC-Berkeley - USA}, R. H. Seidensticker (ANL - USA), F.F. Tajirian (BNI - USA) 113 Utilities/Industries Joint Study on Seismic Isolation Systems for LWR (Part I) Experimental and Analytical Studies on Seismic Isolation Systems, Huneaki Kato (Japan Atomic Power - Japan), Shoji Sato (Tokyo Elec. Power - Japan), Issei Shimomura (Kansai Elec. Power - Japan) 126 Contents (Cont'd) £§££ Utilities/Industries Joint Study on Seismic Isolation Systems for LWR (Part 11) Observed Behaviors of Base-isolated General Buildings under Real Earthquakes, Takao Matsumura (Kansai Elec. Power - Japan), Shoji Sato (Tokyo Elec. Power - Japan), Muneaki Kato (Japan Atomic Power - Japan) 117 Experimental Studies of the Seismic Response of Structures Incorporating Base-Isolation Systems, James M. Kelly, Ian D. Aiken (UC-Berkeley - USA) 176 Design Experience of Base-Isolation System Applied to a Computer Center Building, Akiyoshi Hasebe (Tohoku Elec. Power - Japan), Hideo Kojima (Higashi Ninon Indus. Co. - Japan), Kazuo Tamura (Ohsaki Rea. Inst. - Japan) 197 Design Experience on Seismically Isolated Buildings, G.C. Giuliani (Studio Giuliani - Milano - Italy/Alberta - Canada) 220 Seismic Isolation Retrofitting of the Salt Lake City and County Building, J. Bailey, E. Allen (E.W. Allen & Assoc. - USA) 246 Development of Safety Evaluation Guidelines for Base-isolated Buildings in Japan, Hiroyuki Aoyama (Univ. of Tokyo-Arch. - Japan) 262 Seismic Isolation Rubber Bearings for Nuclear Facilities, Takafumi Fujita (Univ. of Tokyo-IS - Japan) 268 CRIEPI Test Program for Seismic Isolation of the FBR, Hiroo Shiojiri (CRIEPI-Abiko - Japan) 296 DEMT Experimental and Analytical Studies on Seismic Isolation, F. Gantenbein, P. Buland (CEA-CEN Saclay - France) 322 Design and Analysis of Seismically Isolated Structures, R.F. Kulak, C.Y. Wang (ANL - USA) 3^1 Technical Editors and Reviewers 369 Acknowledgments , 369 Corporate Index 370 Author Index IV Preface Overview and Summary of First International Seminar on Seismic Base Isolation for Nuclear Power Facilities, Yao-Wen Chang (ANL - USA), Takashi Kuroda CShimisu Corp.-NP - Japan), Alessandro Martelli (ENEA-DRI - Italy) Purpose of Seminar The First International Seminar on Seismic Base Isolation of Nuclear Power Facilities was organized by the authors of this paper. It was held in San Francisco, California, U.S.A., on August 21-22, 1989, in conjunction with the tenth International Conference on Structural Mechanics in Reactor Technology (SMiRT-10). The purpose of the seminar was to provide an international forum for discussion on the application of base isolation to nuclear power plants and of its effectiveness in reducing seismic loads and permitting standard plant designs. It also provided an opportunity for technical interchange between base isolation system designers, structural engineers, and nuclear power plant engineers. Seismic isolation is certainly one of the most significant earthquake engineering developments in recent years. This was clearly demonstrated by the very large attendance at this seminar and the various papers presented. Isolation systems act as filters that reduce the seismic forces and increase the ability of isolated structures and their contents to withstand the damaging effects of earthquake motions. Topics Discussed at the Seminar Topics included were: • overview of current activities in seismic isolation; • perspectives of seismic isolation for building and nuclear power plants; • experimental and analytical studies of base isolation bearings; • observed motions of seismically isolated structures under earthquakes; -a- , fire resistance, and other environmental effects on isolation bearings; • design experience of base isolated structures; • base isolation bearing properties, design, codes and standards; • effects of long-period ground motion on base-isolated structures; • soil-structure interaction effects in the design of base-isolated structures; • panel discussions - issues, solutions, and future outlook. It should be mentioned that the subjects discussed at the seminar were not limited to nuclear applications. In fact, including papers and discus- sions on the application of seismic isolation to non-nuclear buildings and the other industrial, structures was Judged of great importance and opened many new avenues of information interexchange. The above topics were presented primarily by invited speakers who are leading experts in their fields. The 18 invited papers are all published in this special issue. There were four sessions in the Seminar: 1. Recent Developments in Seismic Base Isolation (chaired by R.W. Seidensticker, Argonne National Laboratory, USA); 2. Application of Base Isolation to Nuclear Power Plants (chaired by A. Kartelli, ENEA, Italy); 3. Application of Base Isolation to Buildings (chaired by A.J. Eggenberger, National Science Foundation, USA); H. Testing and Analysis of Seismic Isolation Systems (chaired by T. Kuroda, Shinizu Corporation, Japan). -3™ A parcel discussion was held at the end of Session M, moderated by A.J, Eggenberger and A. Martelli. The panelists were some of the invited speakers who represented the various application fields. At the conclusion of Session 2, a visit was organized by Prof. J.M. Kelly to his experimental laboratories at Berkeley. During this visit, tests were carried out on high-damping steel-laminated elastomer bearings, bolted to the supporting plates; these demonstrated the capability of such bearings to withstand very high loads. Success of the seminar was demonstrated by the participation of 72 experts from many countries, a large number for a post-SMiRT conference. Present Status of Seismic Base Isolation Applications Seismic isolation systems have been widely used for bridges, buildings, and non-nuclear plants and structures in high seismic areas such as Japan, New Zealand, and California. Examples of new applications were described in the papers of Izumi, Skinner, and Eggenberger. Furthermore, new construction of base-isolated large buildings are also in progress in many countries, such as Italy and Japan, as described by Giuliani and Hasebe. Seismic base isolation has also been adopted for nuclear plants by Electricite de France (the paper of Coladant provides a description of these applications). Furthermore, the continued use of this technique is foreseen for future Japanese liquid-metal reactors (LMRs) and light-water reactors (LWRs) as stated by Kato et al. It has also been adopted in the advanced U.S. LMR project PRISM (the paper of Gluekler et al.). Adva?i-_ges
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