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.

Boris Jeremić

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.

Tatsuya Itoi

University of Tokyo

Co-Chair

Kenji Oikawa

Tokyo Electric Power Company Holdings, Overview of Tsunami PRA of Kashiwazaki-Kariwa Based on the SSHAC Level 3 Methodology

Speaker

Daigo Hiratsuka

Kyushu Electric Power Company, Overview of Seismic PRA and Tsunami PRA for Safety Improvement Assessment on Sendai Nuclear Power Station

Speaker

Masato Nakajima

Central Research Industry of Electric Power Industry, Overview of NRRC Activities on Seismic and Tsunami PRA

Speaker

Takeshi Numata

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.

John Richards

Electric Power Research Institute

Co-Chair

Farhang Ostadan

Bechtel Corporation, RIPB Approach: Opportunities and Challenges

Speaker

Nilesh Chokshi

Independent Consultant, Considerations Involved in Use of SPRA/Risk Evaluations in the RIPB Seismic Design

Speaker

Mohamed Talaat

Simpson Gumpertz & Heger, RIPB Seismic Design Workflow: Lessons Learned from Implementing LMP Criteria

Speaker

Toshiaki Sakai

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.

Thomas Heitz

Nuclear Safety and Radiation Protection Authority (ASNR)

Co-Chair

Alain Alsokhon

Électricité de France

Co-Chair

Constantinos Kanellopoulos

SMATCH Benchmark: Seismic Response Analysis of the Base-isolated Cruas NPP subjected to Le-Teil Earthquake using the Real-ESSI Software

Speaker

Eleni Eleftheriou

SMATCH Benchmark: Seismic Response Analysis of the Base-isolated Cruas NPP Subjected to the Le-Teil Earthquake using the ANSYS APDL Software

Speaker

Mao Chen

Simulation of the Base-Isolated Cruas Nuclear Power Plant in the Mw4.9 Le-Teil Earthquake

Speaker

Matthias Stadler

SMATCH Benchmark: Seismic Response Analyses of the Base-isolated Cruas NPP subjected to the Le-Teil Earthquake using the SOFiSTiK Software

Speaker

Thomas Heitz

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.

Thomas Heitz

Nuclear Safety and Radiation Protection Authority (ASNR)

Co-Chair

Alain Alsokhon

Électricité de France

Co-Chair

Ludwig Bahr

First assessments of the seismic response of the Cruas base isolated NPP (SMATCH benchmark)

Speaker

Alexander Kultsep

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

Jae-Wook Jung

Benchmark Research for Seismic Response Estimation of Base-isolated Cruas NPP

Speaker

Boris Jeremic

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

Larisa Logan

CSA Group, Canada

Co-Chair

Christopher Jones

Kansas State University, USA

Co-Chair

Brian McDonald

Exponent, Seismic Codes

Speaker

Richard Cook

Canadian Power Utility Services Ltd., Technology Inclusive Pressure Boundary Code

Speaker

Adeola Adediran

Bechtel, Blast Provision Harmonization

Speaker

Kate Hyam

ASME, ASME/JSME Codes Coordination

Speaker

Madhumita (Mita) Sircar

U.S. Nuclear Regulatory Commission, U.S. Regulatory Perspectives on Codes and Standards Harmonization

Speaker

Hazem Mazhar

Canadian Nuclear Safety Commission, Canadian Regulatory Perspectives on Codes and Standards Harmonization

Speaker

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.

James Zhu

Fluor Nuclear

Co-Chair

Kevin Han

North Carolina State University

Co-Chair

Ryan Howard

Ontario Power Generation, Darlington Small Modular Reactor Project & the Integrated Project Delivery Model

Speaker

Gary Cannell

Fluor Nuclear, SOTA Welding Technology for Advanced Nuclear Construction

Speaker

Lichao (Duke) Du

U.S. Department of Energy, U.S. Government Role in Helping the Commercialization of Nuclear Industry

Speaker

Abhinav Gupta

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!

Harleen Sandhu

Idaho National Laboratory

Co-Chair

Keenan Grassby

Kinectrics

Co-Chair

Kevin Han

North Carolina State University

Speaker

Tsuyoshi Takada

Japan Atomic Energy Agency

Speaker

Bu-Seog Ju

Kyung Hee University

Speaker

Jeffrey Baschuk

Canadian Nuclear Laboratories

Speaker

Nilesh Chokshi

Consultant

Speaker

Emmanuel Viallet

Électricité de France

Speaker

Julia Tcherner

AtkinsRéalis

Speaker

Madhumita Sircar

US Nuclear Regulatory Commission

Speaker

Hamid Sadegh-Azar

University of Kaiserslautern

Speaker

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Early bird registration is available until 31 May

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