Title:
Fiber-Reinforced Polymer Confined Rectangular Columns: Assessment of Models and Design Guidelines
Author(s):
Munzer Hassan and Omar Chaallal
Publication:
Structural Journal
Volume:
104
Issue:
6
Appears on pages(s):
693-702
Keywords:
confined concrete; design guidelines; fiber-reinforced polymer; rectangular column; test
DOI:
10.14359/18951
Date:
11/1/2007
Abstract:
Six confinement models for concrete rectangular columns retrofitted with externally-bonded fiber-reinforced polymers (FRP) are summarized. The models’ predicted values are compared with experimental results involving rectangular short columns retrofitted with FRP and tested under compression. A database on relevant parameters and results on FRP-confined rectangular columns tested under compression and reported in the literature was elaborated. Also, the predictions of European FIB, the Canadian CSA-S806, and ISIS design guidelines were compared with theoretical confinement models and with experimental test results. A comparative parametric study was conducted on the confinement models’ and the guidelines’ predictions of confined concrete strengths. Parameters were examined, such as the FRP-confinement ratio, the unconfined concrete strength, the cross section shape, as well as the mechanical properties of FRP. Additionally, this research study identified the most and least conservative models, as well as the guidelines’ predictions, which overestimated the confined concrete strength.