EVALUATION OF PERFORMANCE-BASED AND TRADITIONAL SEISMIC DESIGN FOR A 4-STORY REINFORCED CONCRETE MOMENT FRAME

Abstract

This study evaluates the seismic performance of buildings in Dinar and Ceyhan, with a focus on rehabilitation
efforts to improve their resistance to ground motions from past earthquakes. Using a combination of linear
dynamic, nonlinear static, and dynamic procedures, the study assessed building performance before and after
rehabilitation. The analysis revealed that seismic hazards, represented by the 475-year return period design
spectra, were effectively enveloped by the recorded ground motions. Structural deficiencies, such as inadequate
column-to-beam strength ratios and insufficient reinforcement, contributed to the observed damage.
Rehabilitation strategies, including the addition of concrete shear walls, significantly enhanced seismic
resistance while retaining the original frame for gravity loads. Post-rehabilitation performance showed
improved seismic behavior, particularly in lateral stiffness and strength. The findings highlight the success of
the rehabilitation measures in achieving life safety under the expected seismic hazard, with recommendations
for refining methodologies and design standards for better resilience against higher-magnitude earthquakes