Date

2022-9-02

Author

Budak, Erhan

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Seismic performance of a 253 m tall reinforced concrete core wall building in Istanbul, designed according to performance-based seismic design principles, was assessed to determine the response parameters that control the serviceability, safety and collapse performance limit states. An ambient vibration test of the building was performed to identify its dynamic properties, including the damping properties for service loads. A three- dimensional linear elastic finite element structural model of the building was developed and validated with the in-situ dynamic properties, which was the basis for the nonlinear finite element model developed subsequently. The collapse capacity of the building was determined using incremental dynamic analysis. Structure- and member-specific seismic fragility curves were derived and the performance of the building at various levels of earthquake hazard in the region was evaluated. The intensities and annual occurrence frequencies of earthquake ground motions leading to local and global collapse were calculated. The effects of the angle of seismic incidence on structural response and consequently on seismic fragilities were discussed. The findings of this study will further improve the understanding of the seismic performance of tall concrete core wall buildings with outrigger systems under different seismic hazard levels.

Subject Keywords

Dynamic Tests, Earthquakes, Fragility, High-Rise Buildings, Seismic Design

URI

https://hdl.handle.net/11511/99789

Collections

Graduate School of Natural and Applied Sciences, Thesis