Naslov
Assessment of the Earthquake Performance of a Cultural Heritage Building Applying the Equivalent Frame Method in Dubrovnik, Croatia
(Assessment of the Earthquake Performance of a Cultural Heritage Building Applying the Equivalent Frame Method in Dubrovnik, Croatia)

Autori
Elias, Kinda

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Fakultät Bauingenieurwesen

Mjesto
Weimar

Datum
23.11

Godina
2022

Stranica
130

Mentor
Abrahamczyk, Lars ; Penava, Davorin ; Uzair, Aanis

Ključne riječi
Earthquake Performance Assessment ; Cultural Heritage ; Unreinforced Masonry Building (URM) ; Equivalent Frame Modeling (EFM) ; Model Updating

Sažetak
Cultural heritage property requires special sensitivity in treatment. They are built as irregular unreinforced masonry structures corresponding to the period of construction and are, in particularly, highly vulnerable to earthquakes. The historical seismicity of the area suggests that the strong ground shaking may occur, e.g. the 1667 Dubrovnik earthquake of about M=7.6 was one the most devastating in the Croatian history. In the framework of the research project entitled “Seismic risk assessment of cultural heritage buildings in Croatia – SeisRICHerCRO” (IP-2020-02- 3531) supported by Croatian Science Foundation (HrZZ) and in cooperation between the research project leading institution University of Zagreb, Faculty of Science, Department of Geophysics, with Josip Juraj Strossmayer University in Osijek, Faculty of Civil Engineering and Architecture, and Bauhaus-Universitat Weimar, Faculty of Civil Engineering, Chair of Advanced Structures, the earthquake performance for different Cultural heritage properties in Croatia shall be assessed. In part of the thesis, that coincide with the project research objectives, the 18th century Episcopal Seminary Building and Classical Gymnasium (Jesuit College) in Dubrovnik, Croatia, shall be investigated. Several numerical tools have been developed for the seismic analysis of URM structures but most of them are very computationally demanding and too complex for the daily use of practicing engineers. The Equivalent Frame Modeling approach, which require less computational effort, was used for the assessment of the building. The geometry is modeled using available data in the 3Muri software. As part of the modeling process, all structural details such as vault systems in the first floor slab and flexible diaphragms in the upper floors are represented, in addition to openings in the external and internal walls. Based on the modeled geometry and frequency obtained from the in-situ testing, the model updating process is performed in accordance with the results of the eigenvalues analysis in order to calibrate the Young’s modulus E, shear modulus G and density ρ. The model updating is supported by reference material parameters based on observations from visual inspection. Following the calibration of the model, a global and local analysis of the building was performed with the help of the Response Spectrum Analysis, based on the guidelines from Eurocode and the Croatian National Annex. Then the Pushover Analysis was preformed and the damage grades of the building were obtained based on the EMS98 scale. Following the Out-of-Plane analysis for certain walls was conducted and the critical peak ground acceleration for each case was defined. The main outcome of the study is identification of critical zones at the global and local levels. Based on this information, the earthquake performance of the Episcopal Seminary Building and the Classical Gymnasium is evaluated. Furthermore, conclusions are drawn regarding the potential location of damage in the event that the expected design earthquake occurs. In addition, recommendations are made for improving the seismic performance of the building through retrofitting works.

Izvorni jezik
Engleski

Znanstvena područja
Arhitektura i urbanizam, Građevinarstvo, Temeljne tehničke znanosti

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