Comparison of performance evaluation of an existing reinforced concrete structure and post-retrofitting analysis results with linear and non-linear calculation methods

Abstract

According to AFAD data, a significant part of the country's population is settled in regions with high earthquake risk. For this reason, performance analysis and retrofitting issues are extremely important for the buildings in Türkiye and the building designs should be calculated in the most realistic way under the influence of earthquakes. In this study, a building in İzmir, which was built according to the 2007 Turkish Earthquake Code, was analyzed. Within the scope of the analyzes, performance analyzes were made in the Sta4-CAD 14.1 software using the linear and non-linear calculation methods in TBDY 2018, and it was determined that the structure did not provide the required performance levels. For this reason, the structure was retrofitted with additional reinforced concrete shear walls and the analyzes were repeated. Structural performance of the building and the damage of the structural elements were examined using both calculation methods before and after retrofitting, and attention was drawn to the effect of solutions made with different methods on the analysis results.