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

Salesa, Angel ; Esteban Escaño, Luis Mariano ; Barris, Cristina

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

Idioma: Inglés

DOI: 10.3989/mc.2022.03821

Año: 2022

Publicado en: MATERIALES DE CONSTRUCCION 72, 345 (2022), e274 [20 pp.]
ISSN: 0465-2746

Factor impacto JCR: 2.1 (2022)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 249 / 343 = 0.726 (2022) - Q3 - T3
Categ. JCR: CONSTRUCTION & BUILDING TECHNOLOGY rank: 41 / 68 = 0.603 (2022) - Q3 - T2

Factor impacto CITESCORE: 3.3 - Materials Science (Q3) - Engineering (Q2)

Factor impacto SCIMAGO: 0.538 - Building and Construction (Q2) - Mechanics of Materials (Q2) - Materials Science (miscellaneous) (Q2)

Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2020-119015GB-C22

Tipo y forma: Artículo (Versión definitiva)