Concrete-Filled Steel Tube Columns Encased with Thin Precast Concrete

Park, Hong-Gun; Lee, Hojun; Choi, In-Rak; Kim, Sung‐Bae; Park, Sung-Soon

doi:10.1061/(asce)st.1943-541x.0001303

Cited by 30 publications

(8 citation statements)

References 2 publications

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“…However, the perforation may lead to performance degradation of FTRC columns. In this study, the polymer grid has been used to prevent the premature spalling of concrete cover (Hadi and Zhao 2011;Heo et al 2011;Park et al 2015). The construction process of FTRC columns in real application can be similar to that of steel RC columns in which the concrete cover is confined with grid mesh (Heo et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on FRP Tube Reinforced Concrete Columns under Different Loading Conditions

2016

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The behavior of fiber-reinforced polymer (FRP) tube reinforced concrete (FTRC) columns under different loading conditions was investigated in this study. Four groups of 16 specimens were cast and tested. Specimens in the first group (the reference group) were re-inforced with longitudinal steel bars and steel helices (Group REF). Specimens in the second group were reinforced with intact glass FRP tubes (Group IT). Specimens in the third group were also reinforced with intact glass FRP tubes. In addition, polymer grid was embedded into the concrete cover to reduce the cover spalling (Group ITG). Specimens in the fourth group were reinforced with perforated glass FRP tubes (Group PT). One specimen from each group was tested under concentric loading, one under 25-mm eccentric loading, one under 50-mm eccentric loading, and one under four-point loading. Results from the experimental study show that FRP tubes significantly increase the load-carrying capacity and ductility of FTRC specimens. Group ITG specimens performed better than the other groups of specimens. Experimental and analytical interaction (P−M) diagrams also show the enhanced performance of FTRC specimens. diagrams also show the enhanced performance of FTRC specimens.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on FRP Tube Reinforced Concrete Columns under Different Loading Conditions

2016

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“…In order to avoid the difficulty of installing and removing the internal mold and to improve the production efficiency, various methods such as centrifugal casting method (Choi et al, 2000; Hamada et al, 1998; Hosoya et al, 2001; Hosoya and Asano, 2000; Hosoya and Hukuyama, 2008; Masuda and Yoshioka, 1994; Shan et al, 2017; Zhang et al, 2018a), multiple internal molds (Ding et al, 2017; Wu et al, 2018; Xiao et al, 2012, 2013; Zhang et al, 2009), sequential concrete placements rotating a section (Iso et al, 1999; Kim et al, 2016; Lim et al, 2014), and thin steel plate internal molds (Kim et al, 2017; Lee et al, 2014; Park et al, 2015) have been adopted to fabricate PC tubes. All these methods could improve the production efficiency and structural safety.…”

Section: Introductionmentioning

confidence: 99%

“…As an alternative method, concrete-filled precast concrete tube (CFPCT) columns have elicited considerable attention because they provide an effective and economical solution to the above issues. In the past few decades, similar types of columns with various details have been investigated under different names such as half PC columns (Choi et al, 2000;Hamada et al, 1998), outer-shell PC columns (Hosoya et al, 2001;Hosoya and Asano, 2000;Hosoya and Hukuyama, 2008;Iso et al, 1999;Masuda and Yoshioka, 1994;Zhang et al, 2009), semi-PC columns (Xiao et al, 2012(Xiao et al, , 2013, concretefilled hollow PC columns (Kim et al, 2016(Kim et al, , 2017Lee et al, 2014;Lim et al, 2014;Park et al, 2015), or CFPCT columns (Ding et al, 2017;Shan et al, 2017;Wu et al, 2018;Zhang et al, 2018a). In this method, a PC tube can be prefabricated in factory, and after erecting the PC tube on site, a composite column composed of PC tube and filled concrete can be completed by filling the core with cast-in-place concrete.…”

Section: Introductionmentioning

confidence: 99%

Seismic behavior of normal-strength concrete-filled precast high-strength concrete centrifugal tube columns

Zhang

et al. 2019

Advances in Structural Engineering

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This study reports the cyclic loading test results of normal-strength concrete-filled precast high-strength concrete centrifugal tube columns. Seven half-scale column specimens were tested under cyclic loads and axial compression loads to investigate their seismic behavior. The major parameters considered in the test included axial compression ratio, filled concrete strength, and volumetric stirrup ratio. The structural behavior of each specimen was investigated in terms of failure modes, hysteresis behavior, bearing capacity, dissipated energy, ductility, stiffness degradation, drift capacity, and strain profiles. Test results revealed that the concrete-filled precast high-strength concrete centrifugal tube column exhibited good integral behavior, and the failure modes of all columns were ductile flexural failures. Lower axial compression ratio and higher volumetric stirrup ratio resulted in more satisfactory ductile performance. In contrast, the filled concrete strength has a limited influence on the structural behavior of concrete-filled precast high-strength concrete centrifugal tube columns. Based on the limit analysis method, the calculation formula for the bending capacity of the concrete-filled precast high-strength concrete centrifugal tube column was developed, and the results predicted from the formulas were in good agreement with the experiment results.

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“…Lee et al [2] had conducted research with the title of cyclic loading test for exterior beam-column joints of CEFT columns. This research was based on the paper of concretefilled steel tube column encased with thin precast concrete by Park.et.al [3]. A cyclic loading test was performed to investigate the seismic performance of exterior beam-column joints of concrete-encased-and-filled steel tubular (CEFT) columns.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study Of Column-Fonudation Joint Using Semi-Precast System Subjected To Axial And Lateral Cyclic Loading

Nugroho¹

2019

Proceedings of the Third International Conference on Sustainable Innovation 2019 – Technology and Engineering (IcoSITE 2019)

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Semi-precast column consists of the combination of cast-in-place concrete and segmental precast concrete. In semi-precast concrete column, difference in compressive strength exists between the cast-in-place and precast concrete. The aim of this research is to investigate the behavior of columnfoundation joint of semi-precast concrete column under axial and lateral cyclic loading. The behavior of columnfoundation joint of semi-precast concrete column has been evaluated by using ACI T1.1.2005. The result shows that the column complies with acceptance criteria of ACI T1.1-05 at point c. Thereby semi-precast column can be used only at the moderate moment resisting frame system (SRPMM) of precast concrete structure, with maximum value of R (modifications response factor) is 6 (ACI T1.1-05).

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Concrete-Filled Steel Tube Columns Encased with Thin Precast Concrete

Cited by 30 publications

References 2 publications

Experimental Study on FRP Tube Reinforced Concrete Columns under Different Loading Conditions

Experimental Study on FRP Tube Reinforced Concrete Columns under Different Loading Conditions

Seismic behavior of normal-strength concrete-filled precast high-strength concrete centrifugal tube columns

Experimental Study Of Column-Fonudation Joint Using Semi-Precast System Subjected To Axial And Lateral Cyclic Loading

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