Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load

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...

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Main Authors: Deokhee Won, Seungjun Kim, Jihye Seo, and Young-Jong Kang
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/9/3/373
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author Deokhee Won
Seungjun Kim
Jihye Seo
and Young-Jong Kang
author_facet Deokhee Won
Seungjun Kim
Jihye Seo
and Young-Jong Kang
author_sort Deokhee Won
collection DOAJ
description 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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spelling doaj.art-234126dfde074aefa8c19645592ebfa02022-12-22T02:37:00ZengMDPI AGApplied Sciences2076-34172019-01-019337310.3390/app9030373app9030373Experimental Study of Composite Hollow RC Column under Uniaxial Compressive LoadDeokhee Won0Seungjun Kim1Jihye Seo2and Young-Jong Kang3Coastal and Ocean Engineering Division, Korea Institute of Ocean Science and Technology, Busan 49111, KoreaDepartment of Construction Safety and Disaster Prevention Engineering, Daejeon University, Daejeon 34520, KoreaCoastal and Ocean Engineering Division, Korea Institute of Ocean Science and Technology, Busan 49111, KoreaDepartment of Architectural, Civil and Environmental Engineering, Korea University, Seoul 02841, KoreaThis 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).https://www.mdpi.com/2076-3417/9/3/373columncompositehigh-strength concretereinforcementinner tube
spellingShingle Deokhee Won
Seungjun Kim
Jihye Seo
and Young-Jong Kang
Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
Applied Sciences
column
composite
high-strength concrete
reinforcement
inner tube
title Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
title_full Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
title_fullStr Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
title_full_unstemmed Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
title_short Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load
title_sort experimental study of composite hollow rc column under uniaxial compressive load
topic column
composite
high-strength concrete
reinforcement
inner tube
url https://www.mdpi.com/2076-3417/9/3/373
work_keys_str_mv AT deokheewon experimentalstudyofcompositehollowrccolumnunderuniaxialcompressiveload
AT seungjunkim experimentalstudyofcompositehollowrccolumnunderuniaxialcompressiveload
AT jihyeseo experimentalstudyofcompositehollowrccolumnunderuniaxialcompressiveload
AT andyoungjongkang experimentalstudyofcompositehollowrccolumnunderuniaxialcompressiveload