Behavior of synthetic fiber-reinforced concrete circular columns under cyclic flexure and constant axial load. Osorio, L., Eid, R., Paultre, P., & Proulx, J. In Annual Conference of the Canadian Society for Civil Engineering 2008 - "Partnership for Innovation", June 10, 2008 - June 13, 2008, volume 4, of Proceedings, Annual Conference - Canadian Society for Civil Engineering, pages 2390–2399, Quebec City, QC, Canada, 2008. Canadian Society for Civil Engineering. abstract bibtex Ductile behavior and high energy absorption ability are two essential properties to be achieved by a concrete column, especially when it is part of a structure placed in a moderate/high seismic region. Concrete design codes ensure ductile behavior of columns by setting a requirement for a minimum amount of transverse steel reinforcement. Studies have shown, however, that the use of fiber-reinforced concrete (FRC) can enhance the post-peak behavior and hence, the ductility and the energy absorption ability of concrete columns subjected to axial loading. Therefore, the inclusion of discrete short fibers into the concrete mixture combined with a reduced amount of lateral reinforcement can be an alternative to the conventional lateral reinforcement required by the codes. Moreover, the higher resistance to crack growth and the excellent durability of FRC over non-fibrous concrete can result in higher cost-effective value. In this regard, tests on large-scale circular synthetic fiber-reinforced concrete (SNFRC) columns subjected to a combined constant axial load and reversed cyclic flexure simulating earthquake loading were carried out. The aim of this test program was to examine the influence of the addition of synthetic fibers to the concrete mixture on the behavior of normal-strength concrete (NSC) columns. The results show that in terms of ductility and energy dissipation, the behavior of the SNFRC columns is improved compared to the NSC columns. Also they show that higher is the lateral reinforcement amount lower is the influence of the fibers on the column's behavior. Based on the test results, the reduction of the confinement steel reinforcement amount required by the concrete design codes appears to be possible when SNFRC is used.
@inproceedings{osorio_behavior_2008,
address = {Quebec City, QC, Canada},
series = {Proceedings, {Annual} {Conference} - {Canadian} {Society} for {Civil} {Engineering}},
title = {Behavior of synthetic fiber-reinforced concrete circular columns under cyclic flexure and constant axial load},
volume = {4},
abstract = {Ductile behavior and high energy absorption ability are two essential properties to be achieved by a concrete column, especially when it is part of a structure placed in a moderate/high seismic region. Concrete design codes ensure ductile behavior of columns by setting a requirement for a minimum amount of transverse steel reinforcement. Studies have shown, however, that the use of fiber-reinforced concrete (FRC) can enhance the post-peak behavior and hence, the ductility and the energy absorption ability of concrete columns subjected to axial loading. Therefore, the inclusion of discrete short fibers into the concrete mixture combined with a reduced amount of lateral reinforcement can be an alternative to the conventional lateral reinforcement required by the codes. Moreover, the higher resistance to crack growth and the excellent durability of FRC over non-fibrous concrete can result in higher cost-effective value. In this regard, tests on large-scale circular synthetic fiber-reinforced concrete (SNFRC) columns subjected to a combined constant axial load and reversed cyclic flexure simulating earthquake loading were carried out. The aim of this test program was to examine the influence of the addition of synthetic fibers to the concrete mixture on the behavior of normal-strength concrete (NSC) columns. The results show that in terms of ductility and energy dissipation, the behavior of the SNFRC columns is improved compared to the NSC columns. Also they show that higher is the lateral reinforcement amount lower is the influence of the fibers on the column's behavior. Based on the test results, the reduction of the confinement steel reinforcement amount required by the concrete design codes appears to be possible when SNFRC is used.},
booktitle = {Annual {Conference} of the {Canadian} {Society} for {Civil} {Engineering} 2008 - "{Partnership} for {Innovation}", {June} 10, 2008 - {June} 13, 2008},
publisher = {Canadian Society for Civil Engineering},
author = {Osorio, L.I. and Eid, R. and Paultre, P. and Proulx, J.},
year = {2008},
keywords = {Axial loads, Columns (structural), Concrete construction, Concrete mixtures, Concrete testing, Cost effectiveness, Ductility, Energy absorption, Energy dissipation, Fiber reinforced concrete, Mixtures, Software testing, Synthetic fibers},
pages = {2390--2399},
}
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Studies have shown, however, that the use of fiber-reinforced concrete (FRC) can enhance the post-peak behavior and hence, the ductility and the energy absorption ability of concrete columns subjected to axial loading. Therefore, the inclusion of discrete short fibers into the concrete mixture combined with a reduced amount of lateral reinforcement can be an alternative to the conventional lateral reinforcement required by the codes. Moreover, the higher resistance to crack growth and the excellent durability of FRC over non-fibrous concrete can result in higher cost-effective value. In this regard, tests on large-scale circular synthetic fiber-reinforced concrete (SNFRC) columns subjected to a combined constant axial load and reversed cyclic flexure simulating earthquake loading were carried out. The aim of this test program was to examine the influence of the addition of synthetic fibers to the concrete mixture on the behavior of normal-strength concrete (NSC) columns. The results show that in terms of ductility and energy dissipation, the behavior of the SNFRC columns is improved compared to the NSC columns. Also they show that higher is the lateral reinforcement amount lower is the influence of the fibers on the column's behavior. Based on the test results, the reduction of the confinement steel reinforcement amount required by the concrete design codes appears to be possible when SNFRC is used.","booktitle":"Annual Conference of the Canadian Society for Civil Engineering 2008 - \"Partnership for Innovation\", June 10, 2008 - June 13, 2008","publisher":"Canadian Society for Civil Engineering","author":[{"propositions":[],"lastnames":["Osorio"],"firstnames":["L.I."],"suffixes":[]},{"propositions":[],"lastnames":["Eid"],"firstnames":["R."],"suffixes":[]},{"propositions":[],"lastnames":["Paultre"],"firstnames":["P."],"suffixes":[]},{"propositions":[],"lastnames":["Proulx"],"firstnames":["J."],"suffixes":[]}],"year":"2008","keywords":"Axial loads, Columns (structural), Concrete construction, Concrete mixtures, Concrete testing, Cost effectiveness, Ductility, Energy absorption, Energy dissipation, Fiber reinforced concrete, Mixtures, Software testing, Synthetic fibers","pages":"2390–2399","bibtex":"@inproceedings{osorio_behavior_2008,\n\taddress = {Quebec City, QC, Canada},\n\tseries = {Proceedings, {Annual} {Conference} - {Canadian} {Society} for {Civil} {Engineering}},\n\ttitle = {Behavior of synthetic fiber-reinforced concrete circular columns under cyclic flexure and constant axial load},\n\tvolume = {4},\n\tabstract = {Ductile behavior and high energy absorption ability are two essential properties to be achieved by a concrete column, especially when it is part of a structure placed in a moderate/high seismic region. 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The aim of this test program was to examine the influence of the addition of synthetic fibers to the concrete mixture on the behavior of normal-strength concrete (NSC) columns. The results show that in terms of ductility and energy dissipation, the behavior of the SNFRC columns is improved compared to the NSC columns. Also they show that higher is the lateral reinforcement amount lower is the influence of the fibers on the column's behavior. 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