Application of FRP laminates for strengthening of a reinforced- concrete T-beam bridge structure

摘要

This paper describes application of fiber-reinforced polymer (FRP) composite laminates to strengthen an aging reinforced- concrete T-beam bridge in South Troy, Rensselaer County, New York. Leakage at the end joints of this single-span structure led to substantial moisture and salt infiltration in the bridge superstructure. Presence of efflorescence was observed, and freeze-thaw cracking and concrete delamination at some locations on the beams were noted.