The results of a survey on perception of earthquake risk in general and risk to different types of constructions in particular, which was carried out on a sample of 240 engineers and 502 lay persons, are presented. In the introduction, some general findings about people%s coping with earthquakes and their consequences are given. The results of the survey show that lay people feel less worried because of earthquake threat to Slovenia than experts. Regarding the perception of seismic risk to different types of buildings, for experts both the time period and the type of construction are important, as expected.
F.01 Acquisition of new practical knowledge, information and skills
COBISS.SI-ID: 6615905Considering 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 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: 5620577In the EU Seventh Framework Programme (FP7) the research project Seismic engineering research infrastructures for European synergies (SERIES) was carried out in the period 2009-2013 (SERIES, http://www.series.upatras.gr). 23 partners, including all major infrastructures in Europe and three industrial beneficiaries, were involved. The project offered to the European earthquake engineering research community and industry an opportunity to access large-scale research infrastructures. Within the project, a task was devoted to the development of a database of existing tests on reinforced concrete (RC) structural elements. The database has been assembled from existing experimental data from literature, to provide researchers with the data needed to evaluate and develop seismic performance models for different RC load bearing elements. The database includes data on RC walls, columns and beams.
F.15 Development of a new information system/databases
COBISS.SI-ID: 6467169The monograph entitled "Eurocode 8: Seismic Design of Buildings" was prepared, which contains a description of the theoretical basis of individual parts of the standard and shows examples of the application of the standard. The monograph was published as a JRC (Joint Research Centre) Ispra report and is available at http://eurocodes.jrc.ec.europa.eu/doc/WS_335/report/EC8_Seismic_Design_of_Buildings Worked_examples.pdf. A.Kreslin and P.Fajfar contributed a chapter on the analysis of building structures. The monograph will facilitate to the designers the understanding of the standard, which is quite demanding, and allow its proper application, which will ultimately contribute to greater seismic resistance of buildings.
F.04 Increase of the technological level
COBISS.SI-ID: 5859681In the nuclear power plant Krško (NEK) the seismic resistance is continuously checked by taking into account the latest available data and modern methods of analysis. The research team at FGG, involved in earthquake engineering, has successfully collaborated with the NPP Krško for many years, especially in reviewing and assessing projects that are related to the seismic safety of NPP facilities and their equipment. The report contains the results of an independent evaluation of a project, conducted by a U.S. company, comprising the determination of floor spectra for all objects of the nuclear island at increased seismic loading (maximum ground acceleration of 0.6g). In the review, we developed, independently of the contractors, the mathematical model of the buildings of the nuclear island and conducted several independent control analyzes. Our work was facilitated by the knowledge gained in the research of floor spectra.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 6465377