Energy dissipation and debonding mechanism of steel and steel fibre reinforced concrete composite beams

Wu, Kai; Lin, Shiqi; Xu, Chunxiao; Chen, Chuyang; Chen, Feng

doi:10.1016/j.engstruct.2020.111353

Cited by 10 publications

(3 citation statements)

References 17 publications

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“…Materials 2023, 16, 3969 2 of 14 Several authors have shown [26][27][28] that the use of steel fiber is effective in reinforced concrete structures to increase their crack resistance, in thin-walled structures, and in structures operating under dynamic loads (airfield pavements, highways, seismic structures, etc. ).…”

Section: Introductionmentioning

confidence: 99%

Efficient, Fine-Grained Fly Ash Concrete Based on Metal and Basalt Fibers

et al. 2023

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This article presents the results of a study of the physical and mechanical properties of fine-grained fly ash concrete based on a combined reinforcement with steel and basalt fibers. The main studies were conducted using mathematical planning of experiments, which allowed the experiments to be algorithmized in terms of both the amount of experimental work and statistical requirements. Quantitative dependences characterizing the effect of the content of cement, fly ash binder, steel, and basalt fiber on the compressive strength and tensile splitting strength of fiber-reinforced concrete were obtained. It has been shown that the use of fiber can increase the efficiency factor of dispersed reinforcement (the tensile splitting strength to compressive strength ratio). To increase the resistance of basalt fiber, it is proposed to use fly ash in cement systems, which reduces the amount of free lime in the hydrating cement environment.

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Section: Introductionmentioning

confidence: 99%

Efficient, Fine-Grained Fly Ash Concrete Based on Metal and Basalt Fibers

et al. 2023

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“…The addition of steel fiber greatly increases the properties of RPC, especially the ductility and energy dissipation [14][15][16][17]. The cracks in the concrete reinforced with steel fiber can be restrained due to the bridging effect at the crack locations [18,19]. Therefore, the residual bond strength of concrete is improved via the addition of steel fibers [16].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the steel fibers can restrain shear cracks and delay or even prevent shear failure [17]. Therefore, the specimens reinforced with enough steel fiber can have large deformation and large amount of energy dissipation even under a strong shear effect [18]. The specimen reinforced with steel fiber can stay intact after failure, with only few and small cracks in the concrete [14], thus greatly improving the ductility of RPC.…”

Section: Introductionmentioning

confidence: 99%

Influence of Fiber Shape and Volume Content on the Performance of Reactive Powder Concrete (RPC)

2021

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This research studied the influence of three types of open (short-straight, long-straight, semicircular) and three different shapes of closed steel fibers (triangular, rectangular, circular) with different fiber contents by volume (0, 0.5%, 1%, 1.5%, and 2%) on the working and mechanical performance of reactive powder concrete (RPC). The results indicated that (1) the number of steel fibers and the enclosed area formed by closed steel fibers would remarkably impact the performance of RPC; (2) the semicircular fiber improves RPC’s strength the most among the three open shapes; (3) the short-straight fiber works more effectively than the closed steel fibers; (4) the circular fiber works the most efficiently in improving RPC’s mechanical performance while the triangular ones have the least effect among the three closed steel fibers; (5) both the closed and open steel fibers improve their compressive strength more than their flexural strength; (6) the closed steel fiber works more efficiently in improving the flexural strength but less efficiently in improving the compressive strength; (7) the open steel fibers enhance the mechanical performance of RPC via their anchoring performance while the closed steel fibers work by confining the concrete; (8) the hybrid utilization of steel fibers improves RPC’s mechanical performance to a higher level via combing the advantages of open and closed steel fibers.

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Evaluation of post-fire pull-out behavior of steel rebars in high-strength concrete containing waste PET and steel fibers: Experimental and theoretical study

Fakoor

Nematzadeh

2021

Construction and Building Materials

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Energy dissipation and debonding mechanism of steel and steel fibre reinforced concrete composite beams

Cited by 10 publications

References 17 publications

Efficient, Fine-Grained Fly Ash Concrete Based on Metal and Basalt Fibers

Efficient, Fine-Grained Fly Ash Concrete Based on Metal and Basalt Fibers

Influence of Fiber Shape and Volume Content on the Performance of Reactive Powder Concrete (RPC)

Evaluation of post-fire pull-out behavior of steel rebars in high-strength concrete containing waste PET and steel fibers: Experimental and theoretical study

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