Analysis on the Moment-Curvature Relationship for Prestressed UHPFRC Beams without Stirrup

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 236-240
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.236
• Online since: May 2011
• Authors: Sang Mook Han, Qing Yong Guo
• Keywords: Fiber Reinforced Concrete (FRC), Moment-Curvature, Prestressed Beams, UHPFRC

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