EVALUATION OF THE SEISMIC PERFORMANCE OF A LOW-RISE SPECIAL MOMENT-RESISTING STEEL FRAME STRUCTURE DESIGNED ACCORDING TO THE TURKISH BUILDING EARTHQUAKE CODE (2018)

Date

2024-9-06

Author

Temizer, Sümeyye Selen

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On February 6, 2023, seismic events with epicenters in Pazarcık and Elbistan led to the collapse of numerous buildings. This study examines methods to enhance the seismic performance of moment-resisting steel-framed buildings, focusing on the structures in Defne, Antakya. A hypothetical building, designed per the 2018 Turkish Building Earthquake Code and 2018 Steel Structure Design, Calculation, and Construction Principles, was analyzed using nonlinear plastic hinge and link models in SAP2000 with earthquake data from station 3129 (Defne, Antakya). The study evaluated different structural configurations, including bare frames, continuous infill walls, and no infill walls on the first floor, as well as basement floor implementation. The results indicate that continuous infill walls significantly reduce lateral displacements, while the absence of infill walls on the first floor negatively affects structural behavior. Consequently, the continuity of the infill walls across all floors is highly recommended, especially in high seismic zones. Furthermore, the inclusion of a basement floor improves overall performance by reducing the lateral displacement and plastic hinging in the first-floor columns. Also, using a higher steel grade in columns than in beams and limiting the axial load capacity usage in columns below 50% in design enhances the building's resilience under major seismic events. These findings provide insights into improving the seismic design of special moment-resisting frames, which can be integrated into future revisions of regulations.

Subject Keywords

Earthquake, Seismic Design, Time-History Analysis, Infill Wall, Basement Floor

URI

https://hdl.handle.net/11511/111544

Collections

Graduate School of Natural and Applied Sciences, Thesis