Naslov
On the selection of distinct element method for numerical analysis of Zagreb Cathedral

Autori
Šamec, Elizabeta ; Gidak, Petra ; Jaguljnjak Lazarević, Antonia ; Oreb, Jakov

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni

Izvornik
10th ICCSM International Congress of Croatian Society of Mechanics / - , 2022, 43-44

Skup
10th International Congress of Croatian Society of Mechanic (ICCSM 2022)

Mjesto i datum
Pula, Hrvatska, 28.09.2022. - 30.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
distinct element method ; masonry ; historical structures

Sažetak
Zagreb Cathedral was severely damaged by the 5.4 magnitude earthquake on March 22, 2020. The Cathedral had already been hit by a hard earthquake of Richer magnitude 6.1 in 1880. It was restored in the neo-Gothic style (by H. Bolle) with ribbed vaults and arches supported by slender columns, but the spatial connection between the load-bearing elements is poorly executed and the structural system for horizontal loads has not been significantly improved. During the restoration, the two 108-meter towers erected next to the church caused a strong asymmetry of mass and stiffness. The distinct element method has shown good results in simulating large displacements or collapse of masonry structures. Therefore, the software 3DEC is used for the structural analysis of the Cathedral. Due to the complicated geometry, considerable effort was invested in the generation of the numerical model. Parametric modeling was used to partially automate the process. The brick- like arrangement of the blocks is used to model walls and vaults, and their nonlinear responses. Since the method is mesh-dependent, the size, shape, and connections of the blocks were adjusted so that their response curves match those from literature and experiments.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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