Seismic assessment of a traditional residential building in Antakya after 2023 Türkiye earthquake sequence

Date

2024-12-04

Author

Atıcı, Hasip

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Historical structures remain standing for many years, although they are exposed to many effects. One of the critical factors affecting the survival of these structures is earthquakes. Researching how historical structures behave in earthquakes is important for their conservation. Damages occurring after earthquakes provide important information about the structural behavior of the building. Earthquakes allow obtaining valuable information about the seismic performance of buildings whose pre-earthquake status is known and whose behavior can be observed after earthquake. Knowing the structural earthquake performance of buildings also contributes to the determination of possible interventions that can be applied to structures before possible future earthquakes. Antakya and its historical city center are among the most affected places in the 2023 Türkiye Earthquake Sequence (Mw=7.7 & Mw=7.6). In this thesis, one of the traditional residential buildings located in the historical city center of Antakya was examined. The building known as Beştek House located in district 3, building lot 587 is a non-engineered, unreinforced masonry building (URM) with architectural and historical values, where changes in construction techniques and materials used can be observed over the centuries. The building was partially collapsed in the 2023 Türkiye Earthquakes. This thesis aims to perform linear static analysis of a traditional unreinforced masonry residential building, which was partially collapsed by consecutive earthquakes that occurred in Türkiye in 2023, using the SAP2000 software by finite element modelling. The building was documented by the METU Graduate Program in Conservation of Cultural Heritage in 2019 as part of the Design in Architectural Conservation (CONS 506) studio course. After the earthquakes in 2023, the structure was documented by METU Centre for Research and Assessment of Historical Environment (TAÇDAM) within the scope of the project CARE-PACE | Post-Earthquake Damage Assessment, Emergency Response, Conservation, Rehabilitation, and Resilience of Cultural Heritage Assets in Multi-layered City: Antakya, Hatay. In this study, the effects of the earthquake on the structure were examined by comparing the structural analysis results and actual damages. Thus, the results regarding the seismic behavior of the examined structure were presented and evaluations are made on the construction technique, structural order and materials of traditional masonry buildings in Antakya. This study is important in that it reveals the weak features of an original Antakya House, which has seen interventions over time, against seismic effects.

Subject Keywords

Unreinforced Masonry Building, Finite Element Method, Seismic Performance Assessment, 2023 Türkiye Earthquake Sequence, Antakya

URI

https://hdl.handle.net/11511/113028

Collections

Graduate School of Natural and Applied Sciences, Thesis