Analysis on the Moment-Curvature Relationship for Prestressed UHPFRC Beams without Stirrup
To simplify the analysis, an elastic perfectly plastic stress-strain law was presented for UHPFRC. The post-cracking behavior was described by the average constant post-crack tensile strength. A strain parameter μ is proposed to evaluate the performance and efficiency of steel fibre reinforcement. 8 rectangular beams were tested in this investigation. Based on the proposed constitutive model, the full history of their flexural moment-curvature relationship for UHPFRC beams was calculated and compared with experimental data on prestressed UHPFRC beams. Good agreement between calculated strengths and experimental data was obtained.
S. M. Han and Q. Y. Guo, "Analysis on the Moment-Curvature Relationship for Prestressed UHPFRC Beams without Stirrup", Advanced Materials Research, Vols. 255-260, pp. 236-240, 2011