Structural Behavior and Performance Level of Reinforced Concrete Under the Cyclic Loads

This study evaluates the applicability of ASCE 41-17 and ATC-40 for assessing the performance of existing structures in Indonesia, where current regulations focus on force-based rather than displacement-based evaluation. The analysis results indicate that all displacement ratios remain below the target performance level for Risk Category 2 structures. Strength values of 1.8943 and 2.9624 for the x-axis and y-axis, respectively, were found to be lower than the maximum allowable values, confirming that the pushover analysis meets the required criteria. The formation of plastic hinges initially in beams and later in ground-floor columns validates the Strong Column–Weak Beam principle, ensuring structural ductility. The study suggests that the Pushover method can be applied to more complex structures with additional stories. Furthermore, SeismoStruct, in combination with other software, offers an efficient alternative for nonlinear static pushover analysis, optimizing computational resources. The findings highlight the potential adoption of ATC-40 and ASCE 41-17 in Indonesia’s structural assessment practices, enabling more accurate performance evaluations and enhancing seismic resilience. Future research should explore broader applications of these codes for various structural types to improve earthquake preparedness and mitigate potential risks.