Assessment of existing buildings by using the linear elastic procedure according to the Turkish Building Earthquake Code (2018)

Date

2023-9-8

Author

Eren, Ege

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Evaluation of existing structures under earthquake loads has an important place in the field of performance-based earthquake engineering. In this respect, linear and non-linear analysis methods can be used in the evaluation of existing structures. Linear elastic analysis and evaluation techniques are notable for their simplicity in terms of modeling and analysis. Nevertheless, the precision of estimating seismic demands and the reliability of outcomes may differ depending on the seismic hazard level and the characteristics of the structural system. Conversely, nonlinear analysis computation methods employ nonlinear material models and geometric relationships that account for the damage behavior of structural materials and systems. These approaches can be more intricate than linear elastic methods and necessitate greater computational power due to the utilization of material models and solution algorithms. Analysis procedures and condition assessment methods for existing structures are thoroughly explained in the Turkish Building Earthquake Code 2018 (TBEC-2018). Plastic rotation demands can be calculated using the linear elastic force-deformation relationships and the seismic performance of the structure can be evaluated on the basis of these computed demands. In this study, three existing buildings with different using purposes and different structural features such as school, dormitory building, which have an important place in the structure stock of Turkey are investigated as case studies. In the scope of this study, the parameters which are used in the application of the linear elastic assessment method are studied. Seismic performance evaluation is carried out using the TBEC (2018) linear elastic assessment procedure. Obtained results are then compared with those compiled from the nonlinear dynamic analyses. The comparative investigation reveals that the TBEC (2018) linear elastic assessment procedure is generally successful in estimating the global seismic response as well as individual member plastic rotation demands. In addition, this study is carried out within the scope of the UDAP project named as Ç-21-30 “Condition Assessment of Existing Buildings By Using The TEC 2018 Linear Elastic Procedure” and supported by AFAD.

Subject Keywords

Condition assessment, Seismic design, Linear analysis procedures

URI

https://hdl.handle.net/11511/105563

Collections

Graduate School of Natural and Applied Sciences, Thesis