Dynamic response of steel-reinforced concrete-filled circular steel tubular members under lateral impact loads

Wei, Xian; Wen-da, Wang; Wang, Rui; Chen, Wensu; Hao, Hong

doi:10.1016/j.tws.2020.106736

Cited by 49 publications

(11 citation statements)

References 29 publications

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“…Using ABAQUS finite elements, Xu et al [ 21 ] calculated the hysteresis performance of SRCFST members under reciprocating loads and discovered that due to the profile steel, the stiffness, peak load, and deformation performance of such members were superior to that of standard CFST columns. The dynamic response of SRCFST members under transverse impact loading was studied experimentally in the literature [ 22 , 23 ], with the section of steel, impact velocity, and impact direction all being taken into account, and the results showed that such columns can absorb a large amount of input energy and have better impact resistance.…”

Section: Introductionmentioning

confidence: 99%

Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire

Han

Bao

2022

Materials

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Steel-reinforced concrete-filled steel tubular (SRCFST) columns have a great development prospect in engineering practice due to their high load-bearing capacity, good ductility, and energy consumption capacity. This paper established the post-fire seismic analysis model of SRCFST with a circular-cased H section using the sequential coupled thermal-stress method by ABAQUS. The P-Δ curve, stiffness, ductility, and energy dissipation were calculated. Then, the post-fire seismic performance of CFST members was compared while keeping the total steel ratio constant, and it revealed that the SRCFST had superior ductility to CFST. Finally, the ductility coefficient and skeleton curve were parametrically evaluated. The results of the study showed that the effects of heating time (th), axial compression ratio (n), slenderness ratio (λ), and steel tube ratio (αt) on the skeleton line of SRCFST columns are more significant; the axial compression ratio (n), slenderness ratio (λ), and steel tube ratio (αt) have a negative influence on the ductility subjected to post-fire.

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Section: Introductionmentioning

confidence: 99%

Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire

Han

Bao

2022

Materials

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“…The above allows combining the advantages of the CFST and SRC columns. This type of column has been extensively investigated through experimental studies and numerical simulation to evaluate its behavior when subjected to static and dynamic loads [6][7][8]. The results obtained show that the steel profile embedded in the SRCFST columns significantly improves the load capacity, reduces the formation of cracks, presents greater seismic resistance, and improves the ductility of the column.…”

Section: Introductionmentioning

confidence: 99%

“…One of the main causes of massive disasters in buildings is the presence of fire [8]. Therefore, interest has been awakened to analyze the impact on the structure of the columns when they are subjected to high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the fire resistance of steel-reinforced concretefilled steel tubular columns with a circular cross-section

Suárez

Abril

2022

J. Phys.: Conf. Ser.

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In the present investigation, an analysis of the fire resistance of the steel-reinforced concrete-filled steel tubular columns with circular cross-sections was carried out by means of numerical simulation. The development of the study was carried out by means of numerical simulation to predict the behavior of the column against fire. The results of the numerical model are validated by comparing the temperature levels obtained through experimental tests. From the results obtained, it is shown that the increase in the contact area between the steel and the concrete reduces the average temperature of the column, which implies a greater resistance to fire. The fire resistance of the columns with the steel profile designs are between 3.4 - 3.6 times higher compared to the column only made of concrete, which is an indication of the excellent performance of the steel-reinforced concrete-filled steel tubular columns with circular cross- sections columns. In general, the methodology proposed in this research allows the analysis of the thermal physical phenomena of the different columns used for the construction of buildings.

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“…Shi et al [9,10] conducted the mechanical experiments of circular SRCFST member under lateral shear load and pure bending loads. Xian et al [11] carried out the experiment on dynamic response of circular SRCFST members under lateral impact loads. 4 Wang et al [12,13] investigated the flexural performance of SRCFST members and behaviour of SRCFST members under combined compression and torsion.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire

Mao

Wang

Zhou

et al. 2021

Journal of Constructional Steel Research

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Dynamic response of steel-reinforced concrete-filled circular steel tubular members under lateral impact loads

Cited by 49 publications

References 29 publications

Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire

Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire

Evaluation of the fire resistance of steel-reinforced concretefilled steel tubular columns with a circular cross-section

Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire

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