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Steel fiber replacement of mild steel in prestressed concrete beams

Description: In traditional prestressed concrete beams, longitudinal prestressed tendons serve to resist bending moment and transverse mild steel bars (or stirrups) are used to carry shear forces. However, traditional prestressed concrete I-beams exhibit early-age cracking and brittle shear failure at the end zones despite the use of a high percentage of stirrups (4.2%). Moreover, producing and placing stirrups require costly labor and time. To overcome these difficulties, it is proposed to replace the stirrups in prestressed concrete beams with steel fibers.
Date: January 2011
Creator: Tadepalli, Padmanabha R.; Hoffman, Norman; Mo, Y. L. & Hsu, Thomas T. C. (Thomas Tseng Chuang), 1933-
Partner: UNT Libraries Government Documents Department