Abstract
A set of requirements parallel to those of ACI 318 has been proposed to generalize the design of reinforced concrete (RC) columns to include glass fiber-reinforced polymer (GFRP) bars in an anticipated GFRP-RC design code currently under preparation by ACI Committee 440. The prudent course of action prior to implementing such requirements, however, is to verify them with a comprehensive experimental study. In this study, 12 full-scale RC columns with a 405 x 405 mm (16 x 16 in.) cross section were designed, fabricated, and tested. The columns were reinforced with GFRP bars and ties. Three different longitudinal reinforcement ratios were investigated (1.0, 1.4, and 2.5%), resulting in three groups of four identical columns (similar reinforcement ratios) that were tested under four different levels of eccentricity. Experimental axial force-moment (P-M) interaction diagrams were constructed for each group. The effect of the longitudinal reinforcement ratio on strength, failure mode, deformation, and strain behavior is presented. A strain compatibility model has been developed, verified with experimental results, and used to provide a parametric study of the critical parameters affecting behavior. The parametric study covered a wide range of concrete strength and reinforcement ratios while considering or neglecting GFRP contribution in the compression zone. The resulting P-M interaction diagrams are presented and discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1049-1061 |
| Number of pages | 13 |
| Journal | ACI Structural Journal |
| Volume | 115 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jul 1 2018 |
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Keywords
- Column
- Compression
- Eccentric
- Failure mode
- Glass fiber-reinforced polymer reinforcement
- P-M interaction diagram
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
Cite this
Effect of glass fiber-reinforced polymer reinforcement ratio on axial-flexural strength of reinforced concrete columns. / Guérin, M.; Mohamed, H. M.; Benmokrane, B.; Shield, C. K.; Nanni, Antonio.
In: ACI Structural Journal, Vol. 115, No. 4, 01.07.2018, p. 1049-1061.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of glass fiber-reinforced polymer reinforcement ratio on axial-flexural strength of reinforced concrete columns
AU - Guérin, M.
AU - Mohamed, H. M.
AU - Benmokrane, B.
AU - Shield, C. K.
AU - Nanni, Antonio
PY - 2018/7/1
Y1 - 2018/7/1
N2 - A set of requirements parallel to those of ACI 318 has been proposed to generalize the design of reinforced concrete (RC) columns to include glass fiber-reinforced polymer (GFRP) bars in an anticipated GFRP-RC design code currently under preparation by ACI Committee 440. The prudent course of action prior to implementing such requirements, however, is to verify them with a comprehensive experimental study. In this study, 12 full-scale RC columns with a 405 x 405 mm (16 x 16 in.) cross section were designed, fabricated, and tested. The columns were reinforced with GFRP bars and ties. Three different longitudinal reinforcement ratios were investigated (1.0, 1.4, and 2.5%), resulting in three groups of four identical columns (similar reinforcement ratios) that were tested under four different levels of eccentricity. Experimental axial force-moment (P-M) interaction diagrams were constructed for each group. The effect of the longitudinal reinforcement ratio on strength, failure mode, deformation, and strain behavior is presented. A strain compatibility model has been developed, verified with experimental results, and used to provide a parametric study of the critical parameters affecting behavior. The parametric study covered a wide range of concrete strength and reinforcement ratios while considering or neglecting GFRP contribution in the compression zone. The resulting P-M interaction diagrams are presented and discussed.
AB - A set of requirements parallel to those of ACI 318 has been proposed to generalize the design of reinforced concrete (RC) columns to include glass fiber-reinforced polymer (GFRP) bars in an anticipated GFRP-RC design code currently under preparation by ACI Committee 440. The prudent course of action prior to implementing such requirements, however, is to verify them with a comprehensive experimental study. In this study, 12 full-scale RC columns with a 405 x 405 mm (16 x 16 in.) cross section were designed, fabricated, and tested. The columns were reinforced with GFRP bars and ties. Three different longitudinal reinforcement ratios were investigated (1.0, 1.4, and 2.5%), resulting in three groups of four identical columns (similar reinforcement ratios) that were tested under four different levels of eccentricity. Experimental axial force-moment (P-M) interaction diagrams were constructed for each group. The effect of the longitudinal reinforcement ratio on strength, failure mode, deformation, and strain behavior is presented. A strain compatibility model has been developed, verified with experimental results, and used to provide a parametric study of the critical parameters affecting behavior. The parametric study covered a wide range of concrete strength and reinforcement ratios while considering or neglecting GFRP contribution in the compression zone. The resulting P-M interaction diagrams are presented and discussed.
KW - Column
KW - Compression
KW - Eccentric
KW - Failure mode
KW - Glass fiber-reinforced polymer reinforcement
KW - P-M interaction diagram
UR - http://www.scopus.com/inward/record.url?scp=85049723347&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85049723347&partnerID=8YFLogxK
U2 - 10.14359/51701279
DO - 10.14359/51701279
M3 - Article
AN - SCOPUS:85049723347
VL - 115
SP - 1049
EP - 1061
JO - ACI Structural Journal
JF - ACI Structural Journal
SN - 0889-3241
IS - 4
ER -