Testing of self-consolidating concrete-filled double skin tubular stub columns exposed to fire

Lü, Hui; Zhao, Xiao‐Ling; Han, Lin-Hai

doi:10.1016/j.jcsr.2010.03.004

Cited by 88 publications

(22 citation statements)

References 23 publications

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“…During this phase, the heat is used to change the state of water into gases rather than to elevate the temperature. This phenomena is also observed by other researchers such as [7] and [8].…”

Section: Resultssupporting

confidence: 87%

Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

Zuki

Jayaprakash

Shahidan

et al. 2015

AMM

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Abstract. This paper presents the result of an experimental investigation of axial behavior of concrete-filled double skin steel tubular (CFDST) columns exposed to high temperature under the action of monotonically applied concentric axial loads. The columns were exposed to ASTM E-119 standard fire curve until 600°C and kept constant for two different exposure time (i.e., 60 and 90 minutes). Failure patterns and reduction in strength, ductility and stiffness of CFDST columns are reported. Factors influencing the strength, ductility and stiffness of CFDST columns during fire exposure, i.e., exposure time, temperature of concrete core and temperature of inner steel tube, are also discussed.

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Section: Resultssupporting

confidence: 87%

Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

Zuki

Jayaprakash

Shahidan

et al. 2015

AMM

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“…However, the usage of CFDST columns is limited to outdoor construction such as transmission towers [7], and bridge piers [8][9][10] even though the performance of CFDST column is superior to RC and CFST columns. To date, research studies on CFDST columns exposed to fire are limited and can be found in previous research [9][10][11][12][13][14][15][16]. As for the residual strength of CFDST columns after fire, none can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Residual strength of fire-damaged columns is important so that it can be used to assess the damage done by fire. Therefore, engineers can calculate the amount of repair that needs to be done [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Concrete-Filled Double Skin Steel Tubular Columns Exposed to ASTM E-119 Fire Curve for 60 and 90 Minutes of Fire

Zuki

Shahidan

Choong³

et al. 2017

MATEC Web Conf.

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Concrete-filled double skin steel tubular (CFDST) columns with outer steel tubes varying in diameter and thickness were exposed to ASTM E-119 fire curve for 60 and 90 minutes. All specimens (control and heated) failed by outward local buckling of outer steel tube, crushing of concrete and outward and inward buckling of inner steel tube. Residual Strength Index (RSI), secant stiffness and Ductility Index (DI) were calculated in order to compare the performance of control and fire-damaged CFDST columns. It was found that specimens with 90 minutes of fire exposure time possessed highest RSI. Meanwhile, secant stiffness seems to decrease with increased exposure time. And finally, CFDST columns became more ductile after being heated.

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“…Furthermore, efforts were also put into studying the behaviours of CFDSTs under transverse loading (Han et al, 2006), tensile loading (Li et al, 2014), torsional loading (Huang et al, 2013) as well as fire (Lu et al, 2010), and they all have evidenced that CFDSTs are able to yield excellent performance under a variety of loading conditions. Although many studies have investigated the behaviours of CFDSTs under different circumstances, surprisingly little research has been on CFDSTs filled with ultra-high performance concrete (UHPC) considering its increasing popularity in the field of engineering.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of UHPC filled tube columns against blast loads

Zhang¹,

Wu²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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During the past decades, the use of concrete filled double skin steel tube (CFDST) members has gained much attention in the construction industry due to its beneficial properties such as light weight, high strength and excellent ductility. Many studies have discussed the behaviour of normal strength concrete filled CFDST member under a variety of load conditions; however, the knowledge of UHPC filled CFDST member is relatively lacking. This paper presents a numerical study on the ultra-high performance concrete filled double-skin tubes subjected to blast loading. Numerical models were developed in LS-DYNA and then validated against recently obtained experimental data.

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Testing of self-consolidating concrete-filled double skin tubular stub columns exposed to fire

Cited by 88 publications

References 23 publications

Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

Concrete-Filled Double Skin Steel Tubular Columns Exposed to ASTM E-119 Fire Curve for 60 and 90 Minutes of Fire

Numerical simulation of UHPC filled tube columns against blast loads

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