Investigating stress–strain relationship and damage constitutive model of basalt fiber reinforced concrete under uniaxial compression

Bian, Han-min; Liu, Yuanzhen; Guo, Yong; Liu, Y; Shi, Weichao

doi:10.1016/j.jobe.2023.106789

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…According to Bian et al (2023), the ductility coefficient of BFRCfilled steel tube short columns can be calculated as…”

Section: Ductility Coefficientmentioning

confidence: 99%

“…Chen et al (2023) analyzed the effect of ultra-high-performance concrete (UHPC) on axial load-axial strain curves, axial compressive load capacity, and ductility of members. Bian et al (2023) investigated the stress-strain relationship of BFRC under uniaxial compression, and concluded that the optimal amount of BF was 0.12%. Zhang Q. et al (2023) determined that at lower concrete strength, the bearing capacity and displacement ductility of BFRC columns can be improved more significantly.…”

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confidence: 99%

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The influence of basalt fiber on the mechanical performance of concrete-filled steel tube short columns under axial compression

Wang,

Li,

Xiang

et al. 2024

Front. Mater.

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With rapid economic and social development, both concrete-filled steel tube (CFST) composite structures and basalt fiber (BF) have been widely applied in the field of civil engineering. To investigate the laws and characteristics of the influence of chopped BF on the mechanical properties of CFST columns and further promote the application of BF in CFST structures, the axial compressive bearing capacity test of 18 CFST short columns was carried out, and the influence of BF of different lengths on their structural mechanical properties was analyzed. The test results were compared with the theoretical calculation results and the finite element analysis results to verify the reasonableness of the test results. The results reveal that the axial compressive bearing capacity of the CFST short column after adding BF is significantly improved compared to the ordinary CFST short column, in which the bearing capacity and the ductility coefficient are increased by approximately 8.1% and 31.6%, respectively, on average. In addition, changing the length of BF has less effect on the bearing capacity of CFST short columns, the rate of increase in bearing capacity decreases with an increase in the steel ratio of CFST, and the coefficient of ductility increases with the increase in the steel ratio.

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“…According to Bian et al (2023), the ductility coefficient of BFRCfilled steel tube short columns can be calculated as…”

Section: Ductility Coefficientmentioning

confidence: 99%

mentioning

confidence: 99%

The influence of basalt fiber on the mechanical performance of concrete-filled steel tube short columns under axial compression

Wang,

Li,

Xiang

et al. 2024

Front. Mater.

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“…Since then, numerous scholars have conducted experimental, theoretical, and numerical modeling studies on the cyclic loading behavior of concrete. Most of these studies have focused on common concrete [15][16][17], reinforced concrete [18,19], recycled concrete [20], and foamed concrete [21]. Cook et al [15] conducted a pioneering study on the impact of sustained constant load and fatigue loading history on the compressive strength of common concrete and revealed that the application of a constant load leads to an increase in both the compressive strength and elastic modulus of concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Cook et al [15] conducted a pioneering study on the impact of sustained constant load and fatigue loading history on the compressive strength of common concrete and revealed that the application of a constant load leads to an increase in both the compressive strength and elastic modulus of concrete. Bian et al [18] conducted uniaxial compression tests on basalt-fiber-reinforced concrete (BFRC) specimens with five different strength grades to investigate their stress-strain relationship. Feng et al [21] investigated the dynamic mechanical properties and damage characteristics of lightweight foamed concrete under impact loading.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical Properties of Rock–Concrete Composite Specimens under Cyclic Loading

Li,

Zhao,

Hou

et al. 2024

Buildings

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The foundations of bridges and other tall buildings are often subjected to cyclic loads. Therefore, it is essential to investigate the mechanical properties of rock–concrete composite foundations under cyclic loads. In this paper, uniaxial cyclic loading and unloading tests were conducted on rock–concrete composite specimens using the TFD-2000 microcomputer servo-controlled rock triaxial testing machine. The stress–strain curves, elastic modulus variation, and energy dissipation were analyzed. The results showed that the stress–strain curves of composite specimens under uniaxial cyclic loading and unloading conditions formed hysteresis loops. The hysteresis loop exhibited a sparse–dense–sparse pattern under the upper stress of 27.44 MPa, which was 90% of the uniaxial strength. The elastic modulus, as well as the dissipated energy, decreased rapidly in the first few cycles and then gradually decreased at a constant rate, with the upper stress increasing to 27.44 MPa. Both the elastic modulus and the dissipated energy exhibited an accelerated stage before specimen failure. The primary failure mode of the composite specimen was split failure from concrete to sandstone. A damage variable was derived to better reflect the laws governing the damage evolution of the composite under cyclic loads.

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Implementation of a visualization teaching approach for mechanical analysis in civil engineering structures

Sun,

Liang,

Wang

et al. 2024

Engineering Reports

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The visualization method for mechanics knowledge in civil engineering courses is very important, which can help students learn abstract mechanics. Combined with the structural analysis software, this paper develops a visualization teaching approach for mechanical analysis in civil engineering structures based on the proposed deformation decomposition method, such as elastic mechanics, material mechanics and structural dynamics. Compared with traditional strain analysis method, the proposed method is more intuitive and can identify more macroscopic basic deformations. By aid of a survey for undergraduate students and master students, the teaching effectiveness of the visualization course is higher than that of the blackboard writing course. Besides, Mann–Whitney test results show that there is a significant difference. The proportion of undergraduate students that think the combination of visualization has good effects are greater than those of master students. The proposed visualization teaching approach can be promoted in mechanics courses of civil engineering.

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Investigating stress–strain relationship and damage constitutive model of basalt fiber reinforced concrete under uniaxial compression

Cited by 8 publications

References 29 publications

The influence of basalt fiber on the mechanical performance of concrete-filled steel tube short columns under axial compression

The influence of basalt fiber on the mechanical performance of concrete-filled steel tube short columns under axial compression

Experimental Study on the Mechanical Properties of Rock–Concrete Composite Specimens under Cyclic Loading

Implementation of a visualization teaching approach for mechanical analysis in civil engineering structures

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