Akademik Veri Yönetim Sistemi
6th International Conference on Structural Integrity, ICSI 2025, Funchal, Portekiz, 1 - 04 Eylül 2025, cilt.77, ss.465-474, (Tam Metin Bildiri)
Deficiencies in reinforced-concrete (RC) elements, such as inadequate transverse reinforcement and poor material quality, critically compromise structural integrity by accelerating fracture mechanisms and reducing overall structural capacity. The February 6, 2023 Kahramanmaraş earthquakes (Mw 7.7 and Mw 7.6) caused severe damage to reinforced concrete (RC) structures in south-eastern Türkiye, highlighting the critical influence of concrete quality and transverse reinforcement detailing on fracture behaviour and structural integrity. Field surveys revealed widespread deficiencies, including excessive stirrup spacing, inadequate diameters, insufficient hook anchorage, poor material quality, and workmanship flaws. Integrating post-earthquake observations with nonlinear static analyses of a representative 6-storey RC model, 10 parametric simulations examined the effects of transverse spacing, diameter, hook angle, and material grade. Results show that closer stirrup spacing (300 mm to 200 mm) can raise column shear capacity by up to 22%, while 135° hook anchorage mitigates longitudinal bar buckling. The combined field–numerical approach offers evidence-based recommendations for seismic design, and code improvement in high-risk regions.