Influence of Confined Concrete Models on the Seismic Response of RC Frames”

Abstract

In this thesis, the influence of confined concrete models on the response of reinforced concrete structures is investigated at member and global system levels. The commonly encountered concrete models such as Modified Kent-Park, Saatçioğlu Razvi and Mander are considered. Two moment-resisting frames designed according to the pre-modern code are taken into consideration to reflect the example of a RC moment-resisting frame in the current building stock. The building is in an earthquake prone zone to be located on Z3 Soil Type. The inelastic response of the building frame is modelled by considering the plastic hinges formed on each beam and column element for different concrete classes and stirrups spacings. The models are subjected to non-linear static analyses. The differences between confined concrete models are comparatively investigated at both reinforced concrete member and system levels. Based on the results of the analyses, it is observed that the differences exhibited in the moment-curvature response of column cross-sections do not significantly affect the overall behaviour of the global system.