Semnan University Press Journal of Rehabilitation in Civil Engineering 2345-4415 13 4 2025 11 01 Incremental Dynamic Analysis of Mid-Rise Buildings with Buckling Restrained Brace Frame System under Pulse-Like Near-Fault Ground Motions 47 66 9316 10.22075/jrce.2025.33814.2044 EN Yaghub Minaei Department of Civil Engineering, Technical and Vocational University (TVU), Tehran, Iran Mohammadreza Mashayekhi Department of Civil Engineering, K. N. Toosi University of Technology, Tehran, Iran Mohammad Sarcheshmehpour Department of Civil and Environmental Engineering, Shiraz University, Shiraz, Iran Journal Article 2024 05 10 Buckling Restrained Braced Frames (BRBFs) are frequently utilized as seismic force-resisting systems due to their considerable ductility and energy dissipation capacity. While BRBFs have shown reliable seismic performance in extensive experimental and numerical studies under far-field ground motions, research on their performance under near-fault ground motions is limited. near-fault ground motions, characterized by short-duration pulses with high amplitudes, impose greater seismic demands on structures. This study conducts Incremental Dynamic Analysis (IDA) on two 8- and 12-story BRBF structures under far-fault and near-fault ground motions. Comparison involves confidence intervals of average IDA curves rather than direct curve comparisons due to record selection uncertainty. At 99% confidence, no significant differences are observed. At 95% confidence, a minor difference is noted, while at 90%, substantial differences emerge, with confidence intervals indicating about a 25% difference for the 8-story and 75% for the 12-story structure. Residual drift comparisons show no significant difference at 99% confidence, a slight difference for the 12-story structure at 95%, and significant differences for both structures at 90% confidence. This suggests the importance of considering near-fault ground motions in assessing BRBF seismic performance, particularly for taller structures. https://civiljournal.semnan.ac.ir/article_9316_f12212de2787a3dd6b32bfdc9c99b318.pdf