Experimental Study on the Flexural Properties of FRP-Reinforced Super-Span Concrete T-Beam after Service

Super-span (20 m) non-prestressed T-section reinforced concrete beams have been in service for more than 30 years and are common Chinese highway bridges. However, the actual performance of these super-span (RC) that with FRP, including their process failure from a state to state, has not determined. In this study, original RC T-beams, 20 m span retrofitted were taken bridge. Their flexural was detected via experiments laboratory. The revealed sectional strain distribution is non-uniform. mid-span ribs clearly play role strengthening section bearing reservation studied based on subsequent analysis. It became clear load-bearing an old T-beam changes during entire life specimen; only because depression resistant capacity measure, but also due updates load codes.