Experimental study of composite hollow RC column under uniaxial compressive load

Deokhee Won; Seungjun Kim; Jihye Seo; Young Jong Kang

doi:10.3390/app9030373

Experimental study of composite hollow RC column under uniaxial compressive load

Deokhee Won, Seungjun Kim, Jihye Seo, Young Jong Kang

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper presents an experimental study of the behavior of a steel-composite hollow reinforced concrete (RC) column under concentric loading. The effects of important variables, such as concrete strength, inner tube thickness, hollow ratio, column diameter, and transverse reinforcement space, are presented in this study. The failure of composite hollow RC columns is characterized by the formation of an inclined shear sliding plane. When the column had a highly confined effect, the inclination of the shear sliding plane was 45°. This study shows that the required performance is achieved when the splice providing transverse reinforcement is fully bonded. Furthermore, the inner tube experiences buckling failure after reaching its maximum strength. The steel-composite hollow RC column with high-strength concrete (HSC) has lower ductility and toughness compared to a column with normal-strength concrete (NSC).

Original language	English
Article number	373
Journal	Applied Sciences (Switzerland)
Volume	9
Issue number	3
DOIs	https://doi.org/10.3390/app9030373
Publication status	Published - 2019 Jan 22

Keywords

Column
Composite
High-strength concrete
Inner tube
Reinforcement

ASJC Scopus subject areas

Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

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10.3390/app9030373

Cite this

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title = "Experimental study of composite hollow RC column under uniaxial compressive load",

abstract = "This paper presents an experimental study of the behavior of a steel-composite hollow reinforced concrete (RC) column under concentric loading. The effects of important variables, such as concrete strength, inner tube thickness, hollow ratio, column diameter, and transverse reinforcement space, are presented in this study. The failure of composite hollow RC columns is characterized by the formation of an inclined shear sliding plane. When the column had a highly confined effect, the inclination of the shear sliding plane was 45°. This study shows that the required performance is achieved when the splice providing transverse reinforcement is fully bonded. Furthermore, the inner tube experiences buckling failure after reaching its maximum strength. The steel-composite hollow RC column with high-strength concrete (HSC) has lower ductility and toughness compared to a column with normal-strength concrete (NSC).",

keywords = "Column, Composite, High-strength concrete, Inner tube, Reinforcement",

author = "Deokhee Won and Seungjun Kim and Jihye Seo and Kang, {Young Jong}",

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AU - Won, Deokhee

AU - Kim, Seungjun

AU - Seo, Jihye

AU - Kang, Young Jong

PY - 2019/1/22

Y1 - 2019/1/22

N2 - This paper presents an experimental study of the behavior of a steel-composite hollow reinforced concrete (RC) column under concentric loading. The effects of important variables, such as concrete strength, inner tube thickness, hollow ratio, column diameter, and transverse reinforcement space, are presented in this study. The failure of composite hollow RC columns is characterized by the formation of an inclined shear sliding plane. When the column had a highly confined effect, the inclination of the shear sliding plane was 45°. This study shows that the required performance is achieved when the splice providing transverse reinforcement is fully bonded. Furthermore, the inner tube experiences buckling failure after reaching its maximum strength. The steel-composite hollow RC column with high-strength concrete (HSC) has lower ductility and toughness compared to a column with normal-strength concrete (NSC).

AB - This paper presents an experimental study of the behavior of a steel-composite hollow reinforced concrete (RC) column under concentric loading. The effects of important variables, such as concrete strength, inner tube thickness, hollow ratio, column diameter, and transverse reinforcement space, are presented in this study. The failure of composite hollow RC columns is characterized by the formation of an inclined shear sliding plane. When the column had a highly confined effect, the inclination of the shear sliding plane was 45°. This study shows that the required performance is achieved when the splice providing transverse reinforcement is fully bonded. Furthermore, the inner tube experiences buckling failure after reaching its maximum strength. The steel-composite hollow RC column with high-strength concrete (HSC) has lower ductility and toughness compared to a column with normal-strength concrete (NSC).

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KW - Composite

KW - High-strength concrete

KW - Inner tube

KW - Reinforcement

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Experimental study of composite hollow RC column under uniaxial compressive load

Abstract

Keywords

ASJC Scopus subject areas

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