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Effect of fiber orientation on compressive behavior of CFRP-confined concrete columns

Sadeghian, Pedram / Rahai, Ali R. / Eni, Mohammad R.

This article presents the results of experimental studies on concrete cylinders confined with CFRP composites. Thirty small-scale specimens (150 x 300 mm²) were subjected to uniaxial compression up to failure and their stress-strain behaviors were studied. Various parameters such as wrap thickness and fiber orientation were considered. Different wrap thicknesses (1, 2, 3, and 4 layers), fiber orientation of 0 degree, 90 degree, +/-45 degree, and their combinations were investigated. The results demonstrated significant enhancement in the compressive strength, stiffness, and ductility of the CFRP-confined concrete cylinders as compared to plain cases. An analytical model for ultimate stress and strain of confined concrete has been proposed.

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Effect of fiber orientation on compressive behavior of CFRP-confined concrete columns

Sadeghian, Pedram / Rahai, Ali R. / Eni, Mohammad R.

This article presents the results of experimental studies on concrete cylinders confined with CFRP composites. Thirty small-scale specimens (150 x 300 mm²) were subjected to uniaxial compression up to failure and their stress-strain behaviors were studied. Various parameters such as wrap thickness and fiber orientation were considered. Different wrap thicknesses (1, 2, 3, and 4 layers), fiber orientation of 0 degree, 90 degree, +/-45 degree, and their combinations were investigated. The results demonstrated significant enhancement in the compressive strength, stiffness, and ductility of the CFRP-confined concrete cylinders as compared to plain cases. An analytical model for ultimate stress and strain of confined concrete has been proposed.

Effect of fiber orientation on compressive behavior of CFRP-confined concrete columns

Sadeghian, Pedram / Rahai, Ali R. / Eni, Mohammad R.

This article presents the results of experimental studies on concrete cylinders confined with CFRP composites. Thirty small-scale specimens (150 x 300 mm²) were subjected to uniaxial compression up to failure and their stress-strain behaviors were studied. Various parameters such as wrap thickness and fiber orientation were considered. Different wrap thicknesses (1, 2, 3, and 4 layers), fiber orientation of 0 degree, 90 degree, +/-45 degree, and their combinations were investigated. The results demonstrated significant enhancement in the compressive strength, stiffness, and ductility of the CFRP-confined concrete cylinders as compared to plain cases. An analytical model for ultimate stress and strain of confined concrete has been proposed.

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Title:

Effect of fiber orientation on compressive behavior of CFRP-confined concrete columns

Additional title:

Einfluss der Faserorientierung auf das Kompressionsverhalten von mit CFRP reparierten Betonsäulen

Contributors:

Sadeghian, Pedram (author) / Rahai, Ali R. (author) / Eni, Mohammad R. (author)

Published in:

Journal of Reinforced Plastics and Composites ; 29 ; 1335-1346

Publication date:

2010

Size:

12 Seiten, 4 Bilder, 6 Tabellen, 11 Quellen

ISSN:

DOI:

https://doi.org/10.1177/0731684409102985

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Betonrohr , Druckfestigkeit , Rissüberbrückung , Reparaturmaterial , kohlenstofffaserverstärkter Kunststoff , Umwinden , Bruchzähigkeit , Faserorientierung , mathematisches Modell

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