Considering the accident at the Fukushima nuclear power plant in Japan, the European Council declared that the safety of all EU nuclear plants should be reviewed, on the basis of a comprehensive and transparent risk assessment (“stress tests”). A stress test is defined as a targeted reassessment of the safety margins of nuclear power plants in the light of the events which occurred at Fukushima: extreme natural events challenging the plant safety functions and leading to a severe accident. As a part of this action, NEK prepared in August 2011 the Special Safety Review Interim Report. The University of Ljubljana (Faculty of Civil and Geodetic Engineering was the contractor and Faculty of Electrical Engineering was the subcontractor) was engaged for the independent evaluation of the document Evaluation of Seismic and Flooding Margins, which represents the background of a part of the Special Safety Review Interim Report. The team was led by P.Fajfar. The team has critically reviewed the NEK report and requested substantial modifications of the original report, especially related to the treatment of seismic risk. After extensive discussions between the evaluators and authors of the original report and after an iteration procedure, the final report was prepared by NEK, which was approved by the evaluators. The work performed by P.Fajfar and his colleagues contributes to the seismic safety of the NPP Krško.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 5620577The manual was prepared by a group of internationally recognized experts from 13 countries, following the initiative of EERI as a assistance to earthquake resistant masonry construction in developing counties subjected to seismic risk. In the manual, recommendations and guidelines for earthquake resistant construction and design of confined masonry buidings are given.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 1829735In the past three decades, significant research has been conducted on seismic behavior of masonry buildings in historic urban and rural nuclei. On the basis of the earthquake damage observations and subsequent experimental simulations of the observed mechanisms, technical measures for the improvement of the seismic resistance have been proposed and methods for seismic resistance verification developed. By in situ and laboratory testing, the basic mechanical properties of the existing and strengthened masonry have been determined. The research results have been used to analyze the requirements of Eurocode regarding the design methods and parameters for structural assessment and retrofitting of buildings. Modifications have been proposed that would lead to more realistic assessment of seismic resistance inthe case of historic masonry buildings. For this purpose, the seismic behavior of buildings, subjected to design-level earthquakes for the second time in just a few decades, has been analyzed and correlated with the actuallyobserved earthquake damage.
F.04 Increase of the technological level
COBISS.SI-ID: 1773159