Akademik Veri Yönetim Sistemi
4th International Civil Engineering & Architecture Conference (ICEARC'25), Trabzon, Türkiye, 17 - 19 Mayıs 2025, ss.595-601, (Tam Metin Bildiri)
Progressive collapse is a process initiated by the sudden loss of load-carrying capacity of a local structural element, leading to the propagation of damage to other elements and resulting in significant structural damage or collapse. In this study, the progressive collapse behavior of reinforced concrete frames under middle column removal scenarios was investigated. Within the scope of the study, two different types of frames are evaluated: a frame designed according to the Turkish Building Earthquake Code 2018 (seismically detailed) and a frame with low concrete strength, smooth reinforcing bars and insufficient transverse reinforcement (lacking seismic detailing). The main objective of the study is to examine the development of progressive collapse mechanisms in these frames and compare their structural responses. For this purpose, the progressive collapse behavior of reinforced concrete frames was simulated using finite element modeling in ABAQUS software. As a result of the analyses, the resistance capacities of the frames against progressive collapse were obtained. In addition, changes in axial forces at the ends of the beam were determined to gain a better understanding of the load transfer mechanisms. Furthermore, the effects of concrete strength and variations in stirrup spacing on the load-carrying capacity were examined in detail through numerical models.