Experimental Study on the Effect of Different Shear Reinforcement Shapes on Shear Failure Behavior and Internal Crack Pattern of RC Beams

Kawamura, K.; Takemura, Masashi; Nakamura, Hikaru; Miura, Taito

doi:10.3151/jact.19.82

Cited by 13 publications

(9 citation statements)

References 6 publications

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“…In the previously-reported experiments (Kawamura et al 2021), the authors conducted a static monotonic loading test of three RC beams failed in shear, as outlined in Fig. 4.…”

Section: Experiments Outlinementioning

confidence: 99%

“…The variation in the product of reinforcement ratio w p and yield strength wy f of the shear reinforcement among the three cases is about 3%, and this reinforcement design allows the difference in w p to be neglected. Please refer to the previous report (Kawamura et al 2021) for further details of this experiment.…”

Section: Experiments Outlinementioning

confidence: 99%

“…In order to consider the effect of drying shrinkage that 200 1000 200 1000 2400 5@200=1000 10@100=1000 Fig. 4 RC beam specimen (Kawamura et al 2021).…”

Section: Analysis Outlinementioning

confidence: 99%

“…In the previous report (Kawamura et al 2021), based on the measurements of shear reinforcement vertical strain, the contributions of the concrete and the shear reinforcement to resisting shear force are discussed. Here, using the cross-sectional stress distributions obtained from the numerical analysis using 3-D RBSM, it is also possible to discuss mechanisms such as beam and arch actions.…”

Section: Study Outlinementioning

confidence: 99%

“…In the previous report (Kawamura et al 2021), differences in the shear failure behavior of RC beams with three different shapes of shear reinforcement (closed stirrup, U-shaped stirrup, and rod-shaped reinforcements) were discussed on the basis of beam loading tests. It was shown that even if the shear reinforcement ratio determined by the cross-sectional area of the vertical legs is almost the same, different shear reinforcement systems result in clear differences in internal crack patterns and beam deformation in the width direction.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Study on the Effect of Different Shear Reinforcement Shapes on Shear Failure Behavior and Shear Resistance Mechanism of RC Beams

Kawamura

Nakamura

Takemura

et al. 2021

ACT

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The authors have reported from experimental investigation that the use of closed stirrups, U-shaped stirrups and rod-shaped reinforcements as shear reinforcements in reinforced concrete (RC) beams results in clear differences in internal crack patterns and maximum strength. In this study, simulations of the experimental beams were performed using a three-dimensional rigid-body spring model, demonstrating that the behavior observed in the experiments is a mechanical phenomenon that can be reproduced numerically. Using the stress distribution over the beam cross section obtained from the analysis, the beam and arch action components of shear resistance are decoupled and considered from the perspective of the shear resistance mechanism. Further, through analysis of additional cases, the role of the upper and lower horizontal legs of the shear reinforcement, the effect of end anchorages on rod-shaped reinforcements were clarified.

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“…In the previously-reported experiments (Kawamura et al 2021), the authors conducted a static monotonic loading test of three RC beams failed in shear, as outlined in Fig. 4.…”

Section: Experiments Outlinementioning

confidence: 99%

Section: Experiments Outlinementioning

confidence: 99%

“…In order to consider the effect of drying shrinkage that 200 1000 200 1000 2400 5@200=1000 10@100=1000 Fig. 4 RC beam specimen (Kawamura et al 2021).…”

Section: Analysis Outlinementioning

confidence: 99%

Section: Study Outlinementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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