Supplemental Materials for: Multi-Earthquake Field Assessment of Transverse Reinforcement Deficiencies in Nonductile Reinforced Concrete Buildings: A Defect–Function–Mechanism Framework

This record contains the supplemental materials supporting the manuscript “Multi-Earthquake Field Assessment of Transverse Reinforcement Deficiencies in Nonductile Reinforced Concrete Buildings: A Defect–Function–Mechanism Framework.” The materials include Table S1, which provides the observation-level classification of field observations within the D1–D9 defect–function–mechanism framework; Table S2, which summarizes the principal structural functions of transverse reinforcement and the main damage consequences associated with their deterioration; and Figures S1–S6, which provide additional field examples supporting the mechanism-based interpretation. These supplemental materials are intended as qualitative and traceable field evidence and should not be interpreted as a quantitative capacity-loss, damage-index, or collapse-probability dataset. The field photographs were obtained during postearthquake field investigations conducted by the authors. The 2020 Sivrice/Elazığ field archive was previously reported by Bayrak et al. (2021) for a different research objective and is re-evaluated here within the D1–D9 transverse-reinforcement framework.