Pushover Analysis of a Reinforced Concrete Frame and Calculation of CO2 Emissions

Abstract

This study evaluates the seismic performance of a reinforced concrete (RC) frame structure
using pushover analysis, a widely applied nonlinear static analysis method. The analysis focuses on
identifying the nonlinear behavior of the reinforced concrete frame structure, including plastic hinge
formation and capacity curve characteristics, under seismic loads. The frame model is developed and
analyzed in compliance with the Turkiye Earthquake Building Code (TBDY 2018), ensuring adherence to
performance-based design principles. Moment – curvature relationships of beams are determined and
axial force - moment interaction diagrams of columns are plotted for performing pushover analysis.
The findings demonstrate that pushover analysis effectively captures the progressive damage mechanisms
and provides valuable insights into the structure's seismic performance. The study also briefly explores
the environmental impact of the materials used in the structure, emphasizing the significance of carbon
dioxide emissions in concrete and reinforcement steel. These results highlight the potential for
incorporating sustainable materials and optimized designs to balance structural safety with environmental
considerations. This study concludes that pushover analysis is a reliable tool for assessing the nonlinear
behavior of RC structures and identifying key failure mechanisms. Future research should aim to integrate
pushover analysis and environmental impacts and provide innovative methods to form seismic resilient
and sustainable structures.