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http://dx.doi.org/10.9798/KOSHAM.2011.11.3.009

The Moment-Curvature Relationship of the Rectangular Ultra High Performance Fiber Reinforced Concrete Beam  

Han, Sang-Mook (금오공과대학교 토목환경공학부)
Guo, Qing-Yong (금오공과대학교 토목환경공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.11, no.3, 2011 , pp. 9-15 More about this Journal
Abstract
The flexural behavior of the UHPFRC rectangular beam which has 100 MPa, 140 MPa compressive strength were compared with that of the typical RPC rectangular beam which has same geometrical shape, prestressd force and 160 MPa compressive strength. UHPFRC beam was not reinforced at all and the variable of test is fraction of steel fiber, compressive strength of concrete, method of prestressing and ratio of prestressing bar. The behavior of UHPFRC beam was analysed by relationship of moment - curvature and load - deflection. Simple modeling of stress-strain of UHPFRC was proposed. Based on the proposed constituted, the flexural moment-curvature relationship was calculated and compared with experimental data on prestressed UHPFRC beams. Good agreement between calculated strengths and experimental data is obtained.
Keywords
ultra high performance concrete; fiber reinforced concrete; moment-curvature;
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