High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement
The standard requirements for transverse steel reinforcement (TSR) confinement in reinforced-concrete (RC) columns are mainly to provide the following: ductile behavior, minimum axial load capacity of the column’s core, and prevention of longitudinal bars buckling. It is well-known that th...
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doaj-09bdc4f953ea499ab7dea22f7b9af9ac2020-11-25T01:34:56ZengMDPI AGBuildings2075-53092019-10-0191021810.3390/buildings9100218buildings9100218High-Strength Concrete Circular Columns with TRC-TSR Dual Internal ConfinementRami Eid0Avi Cohen1Reuven Guma2Eliav Ifrach3Netanel Levi4Avidor Zvi5Civil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelCivil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelCivil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelCivil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelCivil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelCivil Engineering Department, SCE—Shamoon College of Engineering, Beer Sheva 8410802, IsraelThe standard requirements for transverse steel reinforcement (TSR) confinement in reinforced-concrete (RC) columns are mainly to provide the following: ductile behavior, minimum axial load capacity of the column’s core, and prevention of longitudinal bars buckling. It is well-known that the passive confinement due the TSR action is less effective in high-strength concrete (HSC) compared to normal-strength concrete (NSC). Therefore, the TSR amounts required by the standards for HSC columns are high, and in some cases, especially in the lower stories columns of high-rise buildings, are impractical. This paper presents a new construction method using textile-reinforced concrete (TRC) as internal confinement together with reduced TSR amounts. Moreover, comparison of the proposed method with RC columns casted in fiber-reinforced polymer (FRP) stay-in-place forms as additional external confinement, is presented. Eleven large-scale column specimens were tested under axial compression. The results give an insight on the application feasibility of the proposed construction method. It is shown that the TRC-TSR dual internal confinement action can be an option to reduce the standard required TSR amounts while maintaining similar levels of ductile behavior.https://www.mdpi.com/2075-5309/9/10/218reinforced-concretetextile-reinforced concretetrccolumnsfiber-reinforced polymerfrpductilitytransverse steel reinforcementconfinement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rami Eid Avi Cohen Reuven Guma Eliav Ifrach Netanel Levi Avidor Zvi |
spellingShingle |
Rami Eid Avi Cohen Reuven Guma Eliav Ifrach Netanel Levi Avidor Zvi High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement Buildings reinforced-concrete textile-reinforced concrete trc columns fiber-reinforced polymer frp ductility transverse steel reinforcement confinement |
author_facet |
Rami Eid Avi Cohen Reuven Guma Eliav Ifrach Netanel Levi Avidor Zvi |
author_sort |
Rami Eid |
title |
High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement |
title_short |
High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement |
title_full |
High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement |
title_fullStr |
High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement |
title_full_unstemmed |
High-Strength Concrete Circular Columns with TRC-TSR Dual Internal Confinement |
title_sort |
high-strength concrete circular columns with trc-tsr dual internal confinement |
publisher |
MDPI AG |
series |
Buildings |
issn |
2075-5309 |
publishDate |
2019-10-01 |
description |
The standard requirements for transverse steel reinforcement (TSR) confinement in reinforced-concrete (RC) columns are mainly to provide the following: ductile behavior, minimum axial load capacity of the column’s core, and prevention of longitudinal bars buckling. It is well-known that the passive confinement due the TSR action is less effective in high-strength concrete (HSC) compared to normal-strength concrete (NSC). Therefore, the TSR amounts required by the standards for HSC columns are high, and in some cases, especially in the lower stories columns of high-rise buildings, are impractical. This paper presents a new construction method using textile-reinforced concrete (TRC) as internal confinement together with reduced TSR amounts. Moreover, comparison of the proposed method with RC columns casted in fiber-reinforced polymer (FRP) stay-in-place forms as additional external confinement, is presented. Eleven large-scale column specimens were tested under axial compression. The results give an insight on the application feasibility of the proposed construction method. It is shown that the TRC-TSR dual internal confinement action can be an option to reduce the standard required TSR amounts while maintaining similar levels of ductile behavior. |
topic |
reinforced-concrete textile-reinforced concrete trc columns fiber-reinforced polymer frp ductility transverse steel reinforcement confinement |
url |
https://www.mdpi.com/2075-5309/9/10/218 |
work_keys_str_mv |
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