Performance Related Specifications for Concrete Bridge Superstructures. Volume 3: Nonmetallic Reinforcement.

摘要

The objective of this study was to investigate bond and shear performance of concrete reinforced with FRP (non-metallic) reinforcement and develop design recommendations for the development of such reinforcement in bridge decks. To evaluate the bond strength of glass and aramid FRP bars, three series of beam splice tests were conduced. In addition, the cracking and deflection behavior of the test specimens were investigated. To evaluate the shear strength of beams longitudinally reinforced with FRP reinforcement, two series of shear beam tests were conducted. In particular, the effect of the axial stiffness of the tensile reinforcement and the longitudinal reinforcement percentage on the concrete contribution to shear strength for beams with a/d ratios greater than 2.5 was investigated. The following report presents a summary of the experimental studies and the resulting design recommendations. Additional information regarding these studies is available in Mosley, 2000 and Tureyen, 2001.