Abstract: “A simple algorithm is proposed to develop a nonlinear moment-curvature relation for Reinforced Concrete (RC) T-beam sections using nonlinear material models. The flange in the beam adds to the complexity of analysis compared to rectangular beam sections. This algorithm has been validated by laboratory testing of simply supported flanged beam specimens, subjected to two-point loading. The loaddeflection data obtained from the experiments is converted to a moment-curvature relation for the section applying simple bending theory. The results predicted numerically by the proposed algorithm are found to be in good agreement with the experimental data. The algorithm developed can be used to generate the load-deflection curve of an RC T-beam subject to any given loading.”

Keywords: reinforced concrete, T-beam, momentcurvature , nonlinear analysis