Working Group on Integrity of Components and Structures (IAGE)

9:00 – 9:30

Opening address: NRI Representative (Presentation)
Opening address: OECD/NEA
Logistic and Administrative Information (L. Pecinka)

9:30 – 10:15

The Historical International Development of Seismic Design Analysis of Structures, Systems and Components over the Last Sixty Years (Presentation)
Presenting author: John Stevenson, Consulting Engineer, FCSU Corporate Centre, USA

10:15 – 10:45

Coffee break

10:45 – 12:30

The Historical International Development of Seismic Design Analysis of Structures, Systems and Components over the Last Sixty Years, continuation
Presenting author: John Stevenson, Consulting Engineer, FCSU Corporate Centre, USA

12:30 – 13:00

Discussion on morning presentations

13:00 – 14:00

Lunch break in NRI cafeteria

14:00 – 17:00

Seismic Design and Evaluation of the NPP Structures (Presentation)

• Soil Structure Interaction (Presentation)
• Generation of the Floor Response Spectra
• Overview of the computer codes
• Description of the Containment
• Applicable Standards and Specifications (Presentation)
• Loads and Loading Combinations (Presentation)
• Structural Acceptance Criteria
• Creep, shrinkage and cracking of concrete
• Response of containment to near-field earthquake: comparison with design spectrum response. Demonstration case: VVER 1000/320 containment

Final discussion to afternoon presentations
Presenting authors: Ovidiu Coman (IAEA), Jan Malý (NRI Rez)
Daniel Makovicka, Czech Technical University in Prague

9:00 – 12:30

Seismic Design and Response of NPP Piping

• ASME Code Section III, Articles NB, NC and ND
• French Code RCC-M
• Design Response Spectra and Design Time History
• Load Combination
• Missing Mass Effect
• Mitigation of Seismic Effects
  • Snubbers
  • Viscous Dampers
  • Other measures

Presenting author: Alexey Berkovski, Vibroseism St. Petersburg, Russia

13:00 – 14:00

Lunch break in NRI cafeteria

14:00 – 17:00

Principles of the Seismology and Seismic Engineering (Presentation)

• Introduction
• Causes of the earthquake
• Characteristics of the earthquake (macroseismic scale, Richter scale)
• Consequences of the earthquake
• Seismological Characteristic of Europe
• Definition of the seismic vulnerability, mitigation actions
• Civil Protection in the EU

Presenting author: Dana Prochazkova, Czech Technical University of Prague

9:00 – 12:30

Seimic Problems of High Energy Nuclear Piping

• ASME Code Section III. : Historical Milestones
• Definition of High Energy Piping
• History of the problem
• Standard Review Plan (NUREG 0800) Chapter 3.6.2 Requirements
• Basic for elasto-plastic calculation of Pipe Whip Restraints

Dynamic Behaviour of Piping with Local Degradation

• Probabilistic LBB
• Redefinition of LLOCA

Presenting author: Ladislav Pecinka, NRI Rez
Zbynek Hruby, TU Prague

13:00 – 14:00

Lunch break in NRI cafeteria

14:00 – 17:00

Technical Tour at NRI

• Research Reactor LWR 15
• Hot Chamber

17:00 – 22:00

Official dinner, Castle Melnik

9:00 – 12:30

Seismic Hazard Assessment

• Basic Definitions
• Hazard vs. Risk
• Methods of Hazard Calculations

Presenting author: Dana Prochazkova, CzechTechnical University of Prague
PSHA Outputs vs. Historical Seismicity – Example of France
Presenting author: Pierre Labbe, EdF
Practical example of Deterministic Hazard Calculations (Application to town Pilsen)
Presenting author: Katerina Demjancukova, Westbohemian University Pilsen

14:00 – 16:30

Seismic Qualification of Systems, Structures and Equipments

• Overview of Existing Standards
• Methodology of SQ including GIP
• Experimental Methods
• Practical Examples

Presenting author: Marek Tengler, Czech Office of S & A

9:00 – 11:45

Seismic Re-evalnation of Older NPPs

• Historical background
• Principles of the SMA (US NRC versus EPRI)
• Selection of the RLE
• Fragilities
• Randomness versus uncertainty
• Numerical example

Presenting author: Ladislav Pecinka, NRI Rez

General Discussion

Closure of Seminar