Impact dynamics and energy dissipation capacity of fibre-reinforced self-compacting concrete plates

Kantar, Erkan; Yuen, Terry Y.P.; Kobya, Veysel; Kuang, Jingming

doi:10.1016/j.conbuildmat.2017.02.011

Cited by 20 publications

(10 citation statements)

References 26 publications

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“…This is due to the fact that the crack-bridging steel fibers and continuous rebars can transfer the stress across the cracks. Similar discussions have been conducted by Kantar et al. (2017).…”

Section: Test Results and Analysessupporting

confidence: 57%

“…When the differences of the beams were taken into account, it can be found within the range of the present study, the cracking patterns were changed from a typical punching to a bending pattern with increasing the steel fiber amount (i.e., B-0N-25, B-1N-25 and B-2N-25; B-2N-50 and B-3N-50) and stirrup ratio (B-0N-00 and B-0N-25; B-2N-25 and B-2N-50). This should be attributed to the reality that the shear or punching resistance of the beams can be enhanced by the incorporation of both steel fibers and stirrups (ACI, 2002; Kantar et al., 2017; Ngo and Kim, 2018; Zhao et al., 2017). With the increase of concrete strength grade (B-2L-25, B-2N-25 and B-2H-25), the bending cracking pattern changes to a punching failure again due to the higher brittleness of high strength concrete (Abbass et al., 2018).…”

Section: Test Results and Analysesmentioning

confidence: 99%

“…(2016) conducted experiments on the behavior of spiral steel FRC beams. Using a drop-weight testing apparatus, Kantar et al. (2017) explored the impact dynamics of plates made of self-compacting concrete and polypropylene fibers.…”

Section: Introductionmentioning

confidence: 99%

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Structural behavior of the steel fiber reinforced concrete beam under multiple impact loadings: An experimental investigation

Jin

Zhang

et al. 2019

International Journal of Damage Mechanics

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Steel fiber reinforced concrete (SFRC) has been proved to be an appropriate material to resist extreme dynamic loadings. To explore the structural behavior of the SFRC component under multiple impact loadings, eight beams with continuous rebars were tested with a drop hammer system. Crack patterns were observed while strains of rebar and concrete, deformation of beams, the impact and reaction forces as well as acceleration were recorded during the experiment. The structural performances were analyzed, and influences of steel fiber amount, stirrup ratio, concrete strength and the times of impact loading were discussed. The test observations indicated that compared with ordinary RC beams after the first impact, crack patterns of SFRC beams were changed from punching-shear to bending and the peak mid-span deflection is considerably reduced. Under multiple impact loadings, the crack patterns of SFRC beams are mainly determined by the first blow, and few new cracks will be generated by the subsequent loadings. The increment of maximum mid-span deflection, however, increases as the number of blow increases. The shapes of deflection curves and distribution of internal force (dynamic shear force) for SFRC beams under multiple impact loadings are significantly different from those under static loadings. Moreover, the magnitude of the shear force slightly increases while the peak impact force decreases with the increasing of impact times. With the increasing steel fiber amount, impact force and energy absorption capacity of SFRC beams were increased while the residual deflection was reduced.

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Section: Test Results and Analysessupporting

confidence: 57%

Section: Test Results and Analysesmentioning

confidence: 99%

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Structural behavior of the steel fiber reinforced concrete beam under multiple impact loadings: An experimental investigation

Jin

Zhang

et al. 2019

International Journal of Damage Mechanics

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“…The literature review reveals that there are comprehensive studies where the effects of the steel reinforcement ratios and the applied input impact energy level on impact behavior of RC slabs have been investigated. Furthermore, the studies focused on the impact behavior of RC slabs strengthened using fiber reinforced polymer (FRP) material with various layouts, the pretensioned RC slabs, and the slabs manufactured from fiber‐RC have been presented in the literature 1–18 . However, the number of experimental studies examining the effects of different support conditions on the behavior of RC slabs subjected to impact loading is quite limited 19 …”

Section: Introductionmentioning

confidence: 99%

“…Radnić et al 14 carried out experimental research to determine the impact behavior of conventional RC slabs and RC slabs strengthened with CFRP sheets. Kantar et al 5 studied the dynamic behavior and collapse mechanisms of self‐compacting concrete (SCC) and fiber‐reinforced SCC (FR‐SCC) slabs subjected to impact load. The effect of the fiber reinforcement ratio parameter on the impact characteristics was determined.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of impact behavior of reinforced concrete slab with different support conditions

Yılmaz

Kıraç

Erdem

et al. 2020

Structural Concrete

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Reinforced concrete (RC) slabs may be subjected to impulsive dynamic loads such as blast and impact during their service period. Many studies related to the impact behavior of RC slabs have been presented. However, comprehensive studies where the effect of the support conditions on the impact behavior of RC slabs has been investigated are still limited. Thus, this study has focused on the effects of the support types and the support layouts on the dynamic responses and the failure modes of RC slabs subjected to impact loads. In the first part of the study, 9 two‐way RC slabs with various support layouts composed of fixed and hinged supports were tested under impact load via the drop‐weight test setup. Two different input impact energies were transmitted to RC slabs during impact loading. The time histories of the accelerations and displacements occurred in RC slabs, and the impact loads acting on RC slabs were recorded. The crack patterns due to the impact load were observed. The dynamic responses obtained by experiments have been interpreted in detail. In the second part, a detailed finite element procedure in which explicit dynamic analysis is performed has been introduced for verification of the experimental results. Good agreement between the experimental and the numerical results has been demonstrated. It has been concluded that proposed finite element procedures can be used for evaluation of the dynamic responses and failure modes of RC slabs under low‐velocity impact load.

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Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

Çalişkan

Aras

Yılmaz

et al. 2022

Structural Concrete

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This study investigated the behavior of slabs produced with low compressive strength concrete without reinforcements under the effect of sudden dynamic impact loading. In addition, an experimental study was conducted by proposing a strengthening method with anchored carbon fiber‐reinforced polymer (CFRP) strips to strengthen the nonreinforced slabs with low‐strength concrete against sudden dynamic impact loads to improve their performance. The variables examined in the experimental study were the placement of the CFRP strips adhered to the concrete slabs for strengthening purposes and anchors in the strips. A constant energy level of impact loading was applied to the concrete slab test specimens with the authors' free weight drop test setup. The acceleration‐time, displacement‐time, strain‐time, and applied impact loading‐time measurements on the concrete slabs were examined, and comments were made about the strengthening method applied to the slab test specimens. In addition, numerical analysis of the tested concrete slabs with ABAQUS finite element software was performed, and the results were compared with the experimental results. In the comparison, it was investigated to what extent numerical analysis and this type of impact analysis can be done realistically and compatible with the experimental results. Within the scope of the study, the strengthening method applied with fan‐type anchored CFRP strips significantly improved and increased the impact performance of concrete slabs produced with low‐strength concrete.

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Impact dynamics and energy dissipation capacity of fibre-reinforced self-compacting concrete plates

Cited by 20 publications

References 26 publications

Structural behavior of the steel fiber reinforced concrete beam under multiple impact loadings: An experimental investigation

Structural behavior of the steel fiber reinforced concrete beam under multiple impact loadings: An experimental investigation

Experimental and numerical investigation of impact behavior of reinforced concrete slab with different support conditions

Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

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