Title: Comparison of Moment-Curvature Models for Fiber- Reinforced Polymer Plate-End Debonding Studies Using Global Energy Balance Approach

Author(s): Garfield X. Guan and Chris J. Burgoyne

Publication: Structural Journal

Volume: 111

Issue: 1

Appears on pages(s): 27-36

Keywords: energy release rate; global energy balance approach; moment-curvature model; plate-end debonding; whole section treatment

DOI: 10.14359/51686428

Date: 1/1/2014

Abstract:
This paper compares a number of different moment-curvature models for cracked concrete sections that contain both steel and external fiber-reinforced polymer (FRP) reinforcement. The question of whether to use a whole-section analysis or one that considers the FRP separately is discussed. Five existing and three new models are compared with test data for moment-curvature or load deflection behavior, and five models are compared with test results for plate-end debonding using a global energy balance approach (GEBA). A proposal is made for the use of one of the simplified models. The availability of a simplified model opens the way to the production of design aids so that the GEBA can be made available to practicing engineers through design guides and parametric studies.