Influence of strands corrosion on the flexural behavior of prestressed concrete beams

Abstract

In this paper, the research goal was the determination of the flexural response of corroded pre-stressed reinforced concrete beams (PC). A simplified flexural model is bases on the calcualus of the moment and curvature/ deflection curves for simply supported beam under uniformly distributed and concentrated loads. Primary research outcomes was the introduction in flexural model of the effects of pitting corrosion though the reduction of area, of the mechanical properties of steel strands and of the loss of bond of steel strands of precast pretensioned beams.