Akademik Veri Yönetim Sistemi
10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Türkiye, 8 - 10 Aralık 2021, ss.1331-1343
An analytical model to predict the torsional moment capacity and the type of failure of thin walled tubular reinforced concrete elements strengthened with near surface mounted (NSM) carbon fiber reinforced polymer (CFRP) laminates is proposed. The model implements the thin walled space truss analogy, which forms the basis of current design codes, and evaluates the torsional capacity as a combination of the resistance offered by the transverse steel reinforcement and CFRP laminate reinforcement. The contribution of the steel reinforcement is limited by its yield strength and that of the CFRP laminates by an effective maximum strain. The model also implements the modified compressive field theory to evaluate the concrete compressive strut inclination. The predictive performance of the developed model is compared against available models and assessed against experimental data obtained within the current research project and available in the literature. The model predicts the failure type and the ultimate torsional capacity with an error of 2.4% (with Co.V. of 5.1%) for current experimental research and 7.2% (with Co.V. of 8.6%) for other literature data.