Experimental and Numerical Studies on Concrete Filled Circular Steel Tubular (CFCST) Members Under Impact Loads

Du, Guanglong; Babic, Milos; Wu, Fanghong; Zeng, Xi; Bie, Xue-Meng

doi:10.1007/s40999-018-0379-8

Cited by 26 publications

(8 citation statements)

References 37 publications

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“…There are tremendous studies conducted on CFST subjected to different loading types e.g. compression [2][3][4], tension [5,6], cyclic loading [7,8], impact [9,10], etc. Different cross sections of CFSTs have been investigated [11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion

Cao

2021

Buildings

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This study numerically explored the torsional behavior of circular concrete-filled steel tubes (CFST) under pure torsion. Numerical models of CFSTs were developed in ABAQUS. The models were validated by comparing with the experimental results available in the literature; then, these models were used for parametric study. Based on the obtained results, the mechanism of torsional moment transferring from steel plates to CFST was presented. The results obtained from the parametric study indicated that the compressive strength of concrete marginally improved the torsional moment capacity of the CFST while concrete prevented buckling and helped the steel tubes to work more effectively. The steel strength significantly affected the torsional moment capacity of the CFST. When the yield strength of steel increased from 235 to 420 MPa, the yield torsional moment of the CFST increased by approximately 50%. The yield torsional moment capacity of the steel tube had the strongest correlation with the yield moment of the CFST, followed by the ratio of diameter to thickness of the steel tube while the parameters related to the compressive strength of concrete exhibited a poor correlation with the yield torsional moment.

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Section: Introductionmentioning

confidence: 99%

Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion

Cao

2021

Buildings

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“…ere are many different methods for investigating material performance. Methods include the use of sensors to detect damage and monitor structural health (i.e., structural health monitoring) [14][15][16][17][18], numerical simulations [19][20][21][22][23][24], and experiments combined with numerical simulations [25][26][27][28][29][30][31]. For the study of the mechanical properties of the inflatable anchor in this paper, the field test method was mainly used.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Studies on the Inflatable Recyclable Anchor in the Tube Piece Type Based on the Soil‐Anchor Interaction Mechanism

Xiao

et al. 2021

Advances in Civil Engineering

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This paper deeply studies the characteristics and “uplift bearing capacity” of a novel type of inflatable recyclable anchor in the tube piece. The proposed novel inflatable recyclable anchor in the tube piece type comprises a metallic rod, an inflatable anchorage device, and a recovery device. Fifteen field uplift tests are conducted to investigate the effects of inflation pressure, thickness of the steel disc, embedment length, and time lapse between anchor inflation and pullout on “the uplift bearing capacity.” The results show that “the uplift bearing capacity” of the novel inflatable anchor in the tube piece type increases with the increase of inflation pressure, thickness of the steel disc, and embedment length. With the increase of inflation time, “the uplift bearing capacity” of the novel inflatable anchor experiences an increase after first experiencing a decrease. The finite element analysis method is used to establish a numerical analysis model of the inflatable anchor, and the distribution law of the tensile stress of the surrounding soil during the pullout of the anchor is analysed. Compared with the traditional grouted anchor, the proposed anchor has an obvious superiority in recyclability, reusability, and swifter formation of anchorage force and thus is a resource-saving and environmentally friendly anchor technology.

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“…Some experimental and numerical studies have been carried out (Han and Yang, 2007; Ke et al, 2018; Lu et al, 2007; Qu et al, 2018) on the eccentric behaviour of concrete-filled steel tubular (CFST) columns including the parameters of eccentricity and width to thickness ratio, and the N–M correlation curves and numerical calculation methods have been proposed by linear regression. Some research studies also (Du et al, 2018a, 2018b; Zhang et al, 2018) have been carried out to study the residual bearing capacity behaviours of CFST columns under impact load and seismic behaviour of frame structures composed of CFST columns. Besides, some experiments on the load carrying capacity of high-performance concrete, self-compacting concrete and recycled concrete short CFST columns have also been carried out (Hu et al, 2016; Lee et al, 2016; Lee et al, 2011; Portolés et al, 2011; Qian et al, 2015; Ren et al, 2017; Wang et al, 2015; Xie et al, 2019; Xu and Liu, 2013; Zhang et al, 2004; Zhang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Research on bearing capacity of hot-rolled steel combined short columns under eccentric load

Tan

Zhang

Wang

et al. 2020

Advances in Structural Engineering

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In this article, three hot-rolled steel combined short columns and a pure steel short column under eccentric load were tested. The failure modes and load–displacement curves of the specimens under eccentric load were reported. A finite element model was developed and validated against the experimental results, and good agreement was achieved in terms of failure modes, bearing capacity and load–displacement curves. Upon validation, a series of finite element models were employed for the parameter analysis over the parameter of concrete strength (30–120 MPa) and steel strength (235–420 MPa). The finite element parameters analysis results showed that the steel strength has limited effect on the reduction coefficient (1 + η) of the ultimate bearing capacity of specimens, whereas the reduction coefficient (1 + η) of the ultimate bearing capacity of specimens decreases gradually as concrete strength increases. Based on the finite element parameter analysis results, the N–M correlation curve and a simplified design method for the reduction coefficient (1 + η) of the ultimate bearing capacity of hot-rolled steel combined short columns under eccentric load are proposed. Good agreement is achieved between the design method and finite element analysis results, and the prediction of the design method is accurate and consistent.

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Experimental and Numerical Studies on Concrete Filled Circular Steel Tubular (CFCST) Members Under Impact Loads

Cited by 26 publications

References 37 publications

Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion

Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion

Experimental and Numerical Studies on the Inflatable Recyclable Anchor in the Tube Piece Type Based on the Soil‐Anchor Interaction Mechanism

Research on bearing capacity of hot-rolled steel combined short columns under eccentric load

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