Compressive strength of circular hollow reinforced concrete confined by an internal steel tube

Han, Taek Hee; Yoon, Ki Yong; Kang, Young Jong

doi:10.1016/j.conbuildmat.2010.02.022

Cited by 34 publications

(19 citation statements)

References 13 publications

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“…To predict the behaviour of an ICH RC column, a column analysis model is suggested in this study based on the Han et al [1,2] concrete model. This analysis tool is capable of axial load-bending moment interaction analyses.…”

Section: Methods Of Analysis For An Ich Rc Columnmentioning

confidence: 99%

“…The column's strength and ductility are enhanced because of the continuous confining stress provided by the inner tube. A non-linear concrete model and the compressive performance were analysed in an experimental study on an ICH RC column [1,2]. In the study, the yielding and buckling failure conditions of the inner tube were considered as well.…”

Section: Introductionmentioning

confidence: 99%

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Fire resistance performance of steel composite hollow RC column with inner tube under ISO 834 standard fire

Won

Park

Jang

et al. 2014

Structural Concrete

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Section: Methods Of Analysis For An Ich Rc Columnmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fire resistance performance of steel composite hollow RC column with inner tube under ISO 834 standard fire

Won

Park

Jang

et al. 2014

Structural Concrete

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“…, the peak strain is thought to be equal to steel tube-concrete's strain by Han [1] since the initial stress level of core concrete column is lower under secondary load. At the same time, according to the continuity of core concrete's stress and strain before and after reinforcement, and stress and strain of filled-concrete follow behind core concrete's ones under secondary load, Integrate Hognestad's equation, constitutive model of concrete filled steel tube and yield conditions of core concrete under triaxial compression, the stress-strain relationships of reinforced core column's concrete and filled-concrete are shown in Table 1.…”

Section: Structural Analysis Of Secondary Stress and Improved Concretmentioning

confidence: 99%

“…Based on plenty of experimental data on bearing capacity of steel tube reinforced concrete, the constitutive relationship curve of steel tube reinforced concrete has been proposed by Han [1] . Zhong [2] proposed the unified theory of steel tube reinforced concrete.…”

Section: Introductionmentioning

confidence: 99%

Computational Method for Bearing Capacity of Steel tube Reinforced Concrete Short Column under Axial Loading

Liu¹,

Xie²,

Qian³

2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

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Abstract. The existing concrete column reinforced by steel tube is commonly used in engineering. However, the computational theory of bearing capacity of the structure after reinforcement is insufficient at present. In the case of the initial stress of existing concrete column is relatively lower, the computational formula of axial bearing capacity for short column pier reinforced by steel tube has been deduced from the modified stress-strain curve of concrete filled steel tube. Comparing the computational results with the correspondent experimental data shows that the formula can provide support for the computation analysis of bearing capacity of reinforcement pier in engineering practice.

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“…2와 같이 Han et al(2008)에 의하여 제안된 내부 구속 중공 RC(Internally Confined Hollow RC ; ICH RC) 기둥이 있다 [1] . 이 기둥은 내측에 횡철근과 종철근이 배근되지 않는 중공 RC기둥의 중공면에 튜브를 삽입한 구조로서 내측 부분 이 완벽하게 구속되기 때문에 중공부에서 파괴되는 것을 방 지할 수 있으며, 코어 콘크리트를 횡철근과 내부 튜브를 이용 하여 3축 구속 상태에 놓이게 하여 강도와 연성도를 증진시 킨 구조이다 [1], [2], [3] . 이밖에도 내부튜브를 삽입한 구조의 비 선형 해석에 대한 연구가 있다 [4] .…”

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Internal Confining Stress of Internally Confined Hollow Columns under Compressive Load

Won¹,

Han²,

Kim³

et al. 2013

Journal of Korean Society of Steel Construction

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: Internally Confined Hollow RC(ICH RC) column consisted of concrete, transverse reinforcement, longitudinal reinforcement, and inner tube. It had good strength and ductility by core concrete was become triaxial confining state with transverse reinforcement and inner tube. There were two confining stress as external confining stress and internal confining stress in an ICH RC column. While external confining stress was researched by former researchers, internal confining stress has not researched. In this paper, confining stress of both Hollow RC column and ICH RC column was investigated using FEA program. Relation between theoretical confining stress and internal confining stress was drawn by analysis results. Modified failure condition equations of inner tube were suggested to base on failure condition equations of inner tube by former researcher. When thickness of inner tube was calculated by modified equations, it could be economic because thickness of inner tube was reduced 50% compared with former researcher equations in order to same confining stress.

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Compressive strength of circular hollow reinforced concrete confined by an internal steel tube

Cited by 34 publications

References 13 publications

Fire resistance performance of steel composite hollow RC column with inner tube under ISO 834 standard fire

Fire resistance performance of steel composite hollow RC column with inner tube under ISO 834 standard fire

Computational Method for Bearing Capacity of Steel tube Reinforced Concrete Short Column under Axial Loading

Internal Confining Stress of Internally Confined Hollow Columns under Compressive Load

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