The deterioration, corrosion, and aging of infrastructure are persistent problems. Due to light weight, high strength, and their ability to easily retrofit existing structures, fiber reinforced polymers (FRP) have gained popularity. The current state of practice is to approximate properties of FRP-wrapped structural elements based on laboratory data. The approach of this study is to develop a finite element model for reinforced concrete beams strengthened with FRPs to achieve a more accurate approximation of structural behavior. If this data could be replicated using finite element analysis, engineers would have a more precise method of predicting strength, flexure, and shear of the reinforced beams. A total of 3 models were developed for the study. Models were reinforced with one layer of carbon fiber on the flexure or shear faces with the wraps oriented at 0 or 45 degrees. The models results did not agree with the laboratory study, although expected, the models were stiffer than predicted.
June 30, 2015
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