22–24 Mar 2021
University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia
Europe/Zagreb timezone

SEISMIC STRESS TEST OF BUILDING STOCK IN SLOVENIA

Not scheduled
20m
VP (University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia)

VP

University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia

Kačićeva 26 10 000 Zagreb
Full paper - scientific Earthquake Risk Mitigation Policies and Management

Speaker

Matjaž Dolšek (Professor, Faculty of Civil and Geodetic Engineering, University of Ljubljana)

Description

The physics-based assessment of seismic risk and its unbiased perception in the community is necessary to enhance community seismic resilience. As a step towards this objective, a seismic stress test of building stock in Slovenia was performed last year. The stress test outcome was negative, which was communicated to the Ministry by means of a preliminary seismic performance certificate of building stock at the national level. The seismic stress showed that the seismic risk in Slovenia is too high. About 20% of citizens live in buildings for which the seismic risk expressed by median estimates of time-based risk measures is beyond the acceptable long-term risk. The real estate value of these buildings is estimated at 18 billion euros. Consequences of a major earthquake (Mw=6.4) close to Ljubljana were simulated informatively by the physics-based method. It was realised for the first time in Slovenia that such an earthquake would likely cause a national catastrophe. The median number of fatalities and direct losses due to damaged building stock was estimated, respectively, to about 600 and 10.5 billion euros, which is more than 20% of Slovenia gross domestic product. It was recommended that seismic resilience in Slovenia is enhanced in two phases: the preparatory and implementation phase. The former phase also foresees seismic performance certificates to improve risk communication and risk management enabled by the novel grading system.

DOI https://doi.org/10.5592/CO/1CroCEE.2021.279
Keywords Seismic stress test, building stock, scenario-based assessment, seismic pe

Primary authors

Anže Babič (Assistant, Faculty of Civil and Geodetic Engineering, University of Ljubljana) Jure Žižmond (Assistant, Faculty of Civil and Geodetic Engineering, University of Ljubljana) Aleš Jamšek (Assistant, Faculty of Civil and Geodetic Engineering, University of Ljubljana) Matjaž Dolšek (Professor, Faculty of Civil and Geodetic Engineering, University of Ljubljana)

Presentation materials