Title: Strengthening of Reinforced Concrete Beams with Externally Bonded Composite Laminates

Author(s): C. Allen Ross, David M. Jerome, Joseph W. Tedesco, and Mary L. Hughes

Publication: Structural Journal

Volume: 96

Issue: 2

Appears on pages(s): 212-220

Keywords: bonding; composite materials; flexural strength

DOI: 10.14359/612

Date: 3/1/1999

Abstract:
This paper summarizes the results of experimental and analytical studies concerning the flexural strengthening of reinforced concrete beams by the external bonding of high-strength, lightweight fiber reinforced plastic (FRP) plates to the tension face of the beam. Twenty-four large-scale beams were tested experimentally to evaluate the strength enhancement provided by the FRP plates. An inelastic section analysis procedure was developed that accurately predicts the load displacement response of the retrofitted beams. A nonlinear finite element method (FEM) analysis was also conducted that corroborates the results from the experimental study and inelastic section analysis.