Compressive behaviour of concrete-filled double-skin sections consisting of corrugated plates

Farahi, Mojtaba; Heidarpour, Amin; Zhao, Xiao‐Ling; Al-Mahaidi, Riadh

doi:10.1016/j.engstruct.2015.12.012

Cited by 75 publications

(19 citation statements)

References 29 publications

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“…It was also reported that by increasing the axial load ratio, the column lateral deformation capacity decreases. Welded corrugated plates were also employed as inner and/or outer tubes for DSTCs filled with conventional concrete [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Axial Compression Behaviour of Hybrid Double-Skin Tubular Columns Filled with Rubcrete

et al. 2019

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Double-skin tubular columns (DSTCs) have become a competitive candidate for column members due to their important advantages compared with conventional reinforced concrete columns, including their better weight-to-strength ratio and ease of construction. Using Rubcrete in hybrid DSTCs is of great interest due to the potential of this system to overcome the Rubcrete material deficiencies and to add more ductility, toughness, seismic resistance, confinement effectiveness, and environmentally-friendly features to that structural system compared to conventional concrete. In this paper, hybrid DSTCs made out of Rubcrete, sandwiched between a fibre reinforced polymer (FRP) tube and a steel tube, were tested. The examined variables were concrete sand or stone replacement ratio (0% and 20%), FRP wall thickness (1- and 2-layers), steel wall thickness (3.2 mm and 4.5 mm), void ratio (50% and 76%), and void shape (circular or square). The axial and lateral stress–strain responses were monitored, measured, and compared. According to this investigation, using Rubcrete in hybrid DSTCs can enhance the axial and hoop strain capacities, especially with fine rubber particles. It was also observed that the adverse influence of using rubber on column ultimate capacity was much lower in DSTC specimens, compared with that of unconfined Rubcrete columns. Therefore, using Rubcrete with fine rubber particles is recommended in DSTC structural columns.

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Section: Introductionmentioning

confidence: 99%

Axial Compression Behaviour of Hybrid Double-Skin Tubular Columns Filled with Rubcrete

et al. 2019

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“…al. (2016) [12], presented the numerically on compressive behavior of steel tubular double skin filled with concrete, three generally types geometrically of cross-sections have conducted in this study, behavior of columns with concrete filled steel DSTC for given sections were generally like short column behavior. While much research has been conducted on the DSTCs with diameter 150 mm and height 300 mm, the present study was aimed to investigating the compressive behavior of DST columns with dimension 100 mm and 310 mm to achieve properties of columns according to Building Code Requirements for Structural Concrete (ACI 318-05) [13].…”

Section: Introductionmentioning

confidence: 88%

Behavior of Hybrid CRRP-Concrete-Steel Double Skin Tubular Column under Axial Load

Ali

Salman

2020

DJES

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Hybrid double skin tubular members (DSTMs) are composite section of three material FRP tube outside, steel tube inside and concrete sandwiches in between. The current study investigated the behavior of fourteen circular DSTCs under axial load. Every specimen is average of a pair of samples, the key parameters are the layers of outer carbon FRP tube, the compressive strength of concrete and the types of columns include (DSTC) and concrete filled FRP tube (CFFT). The test results show that the concrete has effected constrained between two tubes, that's leads to increases strength and ductility of column, the most effective parameters has the number of layers of outer FRP tube the stress-strain relationship shows high ductile behavior of under compression test and the CFFT is superior in ultimate load compared with DSTC.

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“…Civil structures not only bear conventional loads but may also be subjected to extreme loading conditions, such as those associated with impact and collision incidents [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Size-dependency of concrete-filled steel tubes subject to impact loading

Mirmomeni

Heidarpour

Zhao

et al. 2017

International Journal of Impact Engineering

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With the increasing trend towards using concrete-filled steel tubes (CFST) in civil structures, understanding their mechanical properties under impact loads has attracted the interest of researchers. The dynamic properties of concrete confined by steel tubes are sizedependent. An experimental program was carried out to investigate the relation between the size and impact response of CFST sub-samples. High-strain-rate tests were conducted on specimens made from self-consolidating normal concrete confined by mild steel tubes. To take into account the stress uniformity and confinement effects in the specimens, various height-to-diameter ratios (H/D) and diameter-to-tube-wall thickness ratios (D/t) were considered. Dynamic Increase Factors (DIFs) were derived as the ratio of the material strength at high strain rate to those of the same size under quasi-static loading conditions. The results were compared to two sets of reference tests, namely unconfined concrete and hollow steel tube specimens of the same size and with the same boundary conditions. The results indicate the influence of H/D ratio, D/t ratio, and end-friction coefficient on the stress-strain distribution, dynamic compressive properties and failure modes of sub-scale concrete-filled steel tubes under impact load. The size-dependent behaviour of the CFST is found to be a function of the level of confinement the circumferential steel tube imposes on the concrete filling. Two expressions are proposed for predicting the DIF of yield stress for CFSTs: one considering the concrete-steel interaction relationship presented in Eurocode 4, and an empirical expression based on the Cowper-Symonds model for steel. The proposed rate-and size-dependent expressions show close correlations with experimental results.

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Compressive behaviour of concrete-filled double-skin sections consisting of corrugated plates

Cited by 75 publications

References 29 publications

Axial Compression Behaviour of Hybrid Double-Skin Tubular Columns Filled with Rubcrete

Axial Compression Behaviour of Hybrid Double-Skin Tubular Columns Filled with Rubcrete

Behavior of Hybrid CRRP-Concrete-Steel Double Skin Tubular Column under Axial Load

Size-dependency of concrete-filled steel tubes subject to impact loading

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