Confinement of FRP concrete columns: Review of design guidelines and comparison with experimental results

A regulatory framework is required to ensure the correct design of Fibre-Reinforced Polymers (FRPs) increasingly being used as an externally-bonded strengthening system on concrete columns. Several guidelines confinement FRP have been developed over past few years worldwide, each proposing a different approach, resulting in predictions. This study aims evaluate and compare nine international predict compressive strength confined FRP-strengthened columns weigh them against experimental results. The results this investigation reveal that predictions from FRP-confined are generally suitable for circular columns, with ACI-440 CNR-DT 200 guideline two most accurate. Nevertheless, tend overestimate load-carrying capacity non-circular which further work using large-scale specimens required.