SMiRT28 Special Sessions
Tutorial on Nonlinear Earthquake Soil Structure Interaction Analysis for Nuclear Installations
This tutorial will provide engineers with essential knowledge and practical skills for performing nonlinear soil-structure interaction (SSI) analysis, with a focus on applications for nuclear installations. It will cover advanced techniques for modeling soil, interfaces, and structures, emphasizing their behavior under service and hazard loads. Participants will learn key topics such as finite element model construction, seismic motion development, material model calibration, and energy dissipation analysis. Additionally, the tutorial will address quality assurance practices, including verification and validation procedures for nonlinear SSI simulations. The sessions build on successful tutorials from SMiRT-26 (Potsdam) and SMiRT-27 (Yokohama) and will consist of two one-hour sessions.
University of California at Davis
Co-Chair
Enhancement of External Events PRA Methodology and its Application to Risk Assessment of Nuclear Power Plants in Japan
This session will share the latest developments of seismic and tsunami probabilistic risk assessments from utilities in Japan. There will be discussion of the latest standards and technical guidelines on external event PRAs in Japan, and how external event PRAs might be improved.
University of Tokyo
Co-Chair
Tokyo Electric Power Company Holdings, Overview of Tsunami PRA of Kashiwazaki-Kariwa Based on the SSHAC Level 3 Methodology
Speaker
Kyushu Electric Power Company, Overview of Seismic PRA and Tsunami PRA for Safety Improvement Assessment on Sendai Nuclear Power Station
Speaker
Central Research Industry of Electric Power Industry, Overview of NRRC Activities on Seismic and Tsunami PRA
Speaker
Kansai Electric Power Company, Overview of External Events PRA of Kansai's Nuclear Power Plants
Speaker
Motivation and Challenges with Risk-Informed, Performance-Based (RIPB) Design
This session will focus on the RIPB seismic design approaches in actual applications and discuss insights and challenges that have been encountered. The panel will consist of representatives from a regulatory organization, engineering and design organization, vendor, and a PRA practitioner. After a brief overview and short presentations from representatives, most of the session will be devoted to discussion among the panelists and audience, particularly focusing on implementation challenges. Some of the challenges include conducting PRAs for an evolving design, making integrated risk-informed decisions, and need for a multi-disciplinary design team.
Electric Power Research Institute
Co-Chair
Bechtel Corporation, RIPB Approach: Opportunities and Challenges
Independent Consultant, Considerations Involved in Use of SPRA/Risk Evaluations in the RIPB Seismic Design
Speaker
Independent Consultant, Considerations Involved in Use of SPRA/Risk Evaluations in the RIPB Seismic Design
Simpson Gumpertz & Heger, RIPB Seismic Design Workflow: Lessons Learned from Implementing LMP Criteria
Speaker
Central Research Institute of Electric Power Industry, Development of RI-PB Seismic Design Method Considering Balancing Risk Profiles and Key Issues for Implementation
Speaker
SMATCH (Spectral matching for seismic base-isolated nuclear power plant shaken by a real earthquake) OECD/NEA Benchmark – Overview and Preliminary Results and Conclusions: Part I
On November 11, 2019, at 10h52 am (UTC), a 4.9 magnitude (Mw) shallow earthquake occurred at approximately 15 km from the French Cruas NPP. In accordance with operational procedures, the in-structure response was recorded and post-earthquake walkdowns were performed to collect in situ data on various SSCs. Those novel and valuable data have motivated EDF and IRSN (now ASNR), under the umbrella of the OECD/NEA, to organize the SMATCH international benchmark (2023 – 2025) to assess the efficiency of engineering practices related to (1) characterizing the seismic ground motion at the Cruas site and (2) assessing the seismic response of the base-isolated Cruas nuclear power plant.
Nuclear Safety and Radiation Protection Authority (ASNR)
Co-Chair
Électricité de France
SMATCH Benchmark: Seismic Response Analysis of the Base-isolated Cruas NPP subjected to Le-Teil Earthquake using the Real-ESSI Software
Speaker
SMATCH Benchmark: Seismic Response Analysis of the Base-isolated Cruas NPP Subjected to the Le-Teil Earthquake using the ANSYS APDL Software
Speaker
Simulation of the Base-Isolated Cruas Nuclear Power Plant in the Mw4.9 Le-Teil Earthquake
Speaker
SMATCH Benchmark: Seismic Response Analyses of the Base-isolated Cruas NPP subjected to the Le-Teil Earthquake using the SOFiSTiK Software
Speaker
SMATCH OECD/NEA benchmark – synthesis of phase III on the structural response of a base isolated nuclear power plant to a shallow earthquake
Speaker
SMATCH (Spectral matching for seismic base-isolated nuclear power plant shaken by a real earthquake) OECD/NEA Benchmark – Overview and Preliminary Results and Conclusions: Part II
On November 11, 2019, at 10h52 am (UTC), a 4.9 magnitude (Mw) shallow earthquake occurred at approximately 15 km from the French Cruas NPP. In accordance with operational procedures, the in-structure response was recorded and post-earthquake walkdowns were performed to collect in situ data on various SSCs. Those novel and valuable data have motivated EDF and IRSN (now ASNR), under the umbrella of the OECD/NEA, to organize the SMATCH international benchmark (2023 – 2025) to assess the efficiency of engineering practices related to (1) characterizing the seismic ground motion at the Cruas site and (2) assessing the seismic response of the base-isolated Cruas nuclear power plant.
Nuclear Safety and Radiation Protection Authority (ASNR)
Co-Chair
Électricité de France
First assessments of the seismic response of the Cruas base isolated NPP (SMATCH benchmark)
Speaker
Blind Assessment of Structural Dynamic Response of Cruas Base Isolated NPP using RIZZO Int. Hybrid Simulation Approach of Ground Motion for the November 11, Le Teil, France Earthquake
Speaker
Benchmark Research for Seismic Response Estimation of Base-isolated Cruas NPP
Speaker
Cruas NPP Analysis for SMATCH Benchmark by the US-NRC, LBNL and UCDavis Team
Speaker
Nuclear Codes and Standards Harmonization
This session will include presentations and a panel discussion from practitioners and researchers. An initial description of high-level codes and standards harmonization efforts across standards development organizations and jurisdictions will be shared, followed by several presentations detailing more specific harmonization efforts and regulatory perspectives on harmonization. The session will conclude with a panel discussion including all presenters
CSA Group, Canada
Kansas State University, USA
Co-Chair
Exponent, Seismic Codes
Canadian Power Utility Services Ltd., Technology Inclusive Pressure Boundary Code
Speaker
Bechtel, Blast Provision Harmonization
Speaker
ASME, ASME/JSME Codes Coordination
U.S. Nuclear Regulatory Commission, U.S. Regulatory Perspectives on Codes and Standards Harmonization
Speaker
Canadian Nuclear Safety Commission, Canadian Regulatory Perspectives on Codes and Standards Harmonization
Speaker
Canadian Nuclear Safety Commission, Canadian Regulatory Perspectives on Codes and Standards Harmonization
Nuclear Construction and Project Execution
This theme of this session will be “constructing nuclear projects on schedule and under budget.” Construction solutions should come from a full spectrum of activity: from the project execution model to supplier chain management; from lessons learned of past nuclear projects to the new technology applications; from owner’s perspective in construction management to experience on the ‘first of its kind’ nuclear project; etc.
Fluor Nuclear
Co-Chair
North Carolina State University
Co-Chair
Ontario Power Generation, Darlington Small Modular Reactor Project & the Integrated Project Delivery Model
Speaker
Fluor Nuclear, SOTA Welding Technology for Advanced Nuclear Construction
Speaker
U.S. Department of Energy, U.S. Government Role in Helping the Commercialization of Nuclear Industry
Speaker
Artificial Intelligence and Augmented Reality Driven Digital Engineering for High Precision Construction
Speaker
Career Insights Panel for Students and Young Professionals
This panel is designed specifically for students and young professionals. This informal yet engaging session will feature seasoned industry experts sharing their experiences, career journeys, and advice on navigating professional growth. Don’t miss this unique chance to ask questions and gain insights from those who have been in your shoes, about exploring career options, navigating important decisions, or just curious about different industry paths. The session will be interactive, allowing for open discussions in a relaxed setting, with the opportunity to gain career wisdom and inspiration from established professionals!
North Carolina State University
Speaker
Japan Atomic Energy Agency
Speaker
Kyung Hee University
Speaker
Canadian Nuclear Laboratories
Speaker
Consultant
Électricité de France
Speaker
AtkinsRéalis
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