Naslov
Assessment of damage after ML=5.5 and ML=6.2 magnitude earthquakes in Zagreb and Petrinja

Autori
Vlašić, Anđelko ; Srbić, Mladen ; Skokandić, Dominik ; Mandić Ivanković, Ana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Conference Proceedings of 13th Central European Congress on Concrete Engineering CCC 2022 - Next Generation of Concrete Engineering for Post- Pandemic Europe / Salamak, Marek - Krakov : Nbi med!a, 2022, 295-307

ISBN
978-83-938649-7-3

Skup
13th Central European Congress on Concrete Engineering (CCC 2022)

Mjesto i datum
Zakopane, Poljska, 13.09.2022. - 14.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
earthquake, assessment, Zagreb, Petrinja, masonry, reinforced concrete

Sažetak
Abstract: In the last two years two major earthquakes shook northwest Croatia. The first one was in March 2020 with the epicenter 10 km north of Zagreb with a magnitude of ML=5.5, and the second stronger one was in December 2020 with the epicenter 50 km southeast of Zagreb near the town of Petrinja with the magnitude of ML=6.2. Both earthquakes caused severe structural damage to Zagreb city and nearby settlements, and throughout the whole Sisak-Moslavina County. Recorded structural damage ranged from severe damage including total collapse (about 11% of buildings) to light or moderate damage (65% of buildings). Total damage was estimated by World Bank to be around 17 billion euros for 73.000 affected buildings. The first earthquake caused the most damage to the old part of Zagreb city with historical masonry and timber multistory residential buildings, most of which are now around 100 years old. The second earthquake caused damage to a more spread-out area encompassing mostly smaller family houses of mixed reinforced concrete and/or masonry structures, but also linear infrastructure (roads, bridges, pipelines) and soil damage (landslides, liquefaction, sinkholes). After both earthquakes, teams of Civil Engineers were organized by a Civil Protection Authority and led by experts from the Faculty of Civil Engineering Zagreb to perform a rapid post- earthquake assessment of structural safety. The assessment was done according to the prepared methodology which includes a five-level damage classification system and three-level usability labels. This paper will give an overview of the damage classification work with case study examples of the damage and usability grades.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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