Effect of concrete cover on the bond-slip behavior between steel section and concrete in SRC structures

Wang, Xianlin; Liu, Yuqing; Yang, Fei; Lu, Yuanchun; Li, Xuefeng

doi:10.1016/j.conbuildmat.2019.116855

Cited by 79 publications

(25 citation statements)

References 19 publications

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“…In order to further verify the reliability of the simulation results, the experimental data in Chen et al [24] and Yang et al [40] were simulated by the numerical simulation method used in this study, and similar results were obtained.…”

Section: Comparisonmentioning

confidence: 65%

Numerical Study of Bond Slip between Section Steel and Recycled Aggregate Concrete with Full Replacement Ratio

et al. 2020

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In this paper, the bond deterioration mechanism of recycled aggregate concrete (RAC) with a full replacement ratio was studied through experimental and numerical simulations. To study the bond behavior and the bond slip between section steel and RAC, nine push-out specimens were designed using the control variable method. The effects of the concrete strength, the embedded length, the cover thickness, and the lateral stirrup ratio on the bond behavior and the bond slip were investigated in detail. The loading process and failure mode of the specimens were observed, and the test curves of the loading end and free end of the specimens were analyzed. Based on the experiment, the finite element method (FEM) was used to simulate the specimens, and the simulation results were analyzed by comparing the experiment data. The analysis of the results showed that the developed model is capable of representing the characteristic bond strength value between section steel and RAC with sufficient accuracy, and the main differences of bond slip between the simulation and the test results are the slippage at the limit state and the moment at which the free end starts to slip.

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Section: Comparisonmentioning

confidence: 65%

Numerical Study of Bond Slip between Section Steel and Recycled Aggregate Concrete with Full Replacement Ratio

et al. 2020

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“…To resolve the first difficulty, it is believed that the bond action along the loading direction is dominant compared to that in the other two directions (i.e., circumferential and radial directions). Studies reveal that the bond behavior between the steel profile and concrete is affected by many factors including the thickness of concrete cover, transverse reinforcement ratio, anchorage length of steel profile, and concrete strength [28]. In particular, the bond stress-slip relationship depends on the location and position of the steel profile, which means the distance to the loading end of the steel profile, and flanges / web of steel profile, respectively.…”

Section: Fem Modelsmentioning

confidence: 99%

Behavior of Grouted Sleeve Splice for Steel Profile under Tensile Loadings

Zhao

2020

Materials

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Two groups of grouted sleeve splices for steel profile were tested to investigate their tensile behavior, serving as pilot studies for novel prefabricated reinforced concrete shear wall structures. In the first group, four splice specimens with different embedded lengths of steel profile were monotonic tensile loaded to determine an appropriate anchorage length. In the second group, three splice specimens with a conservative anchorage length of steel profile were tested under repeated tensile loading, cyclic loading at high stress, and cyclic loading at large strain, respectively. Parametric studies were then conducted on sleeve thickness, grout strength, offset of steel profile, and misalignment of steel profile using finite element method (FEM)-based models. The results show that the splices in the second group behaved well with minor residential deformation and almost no pinching effect. The optimized sleeve thickness could be appropriately determined using FEM models. The compressive strengths of the grout exceeding a threshold value and the offset of steel profile had minor influence on splice behavior, while the misalignment of steel profile had a pronounced effect.

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“…e bond fails at a small slip. e ultimate slip at the loaded end of specimens was evaluated according to Yang et al [32]:…”

Section: Bond Strengthmentioning

confidence: 99%

“…Only a few studies have been performed to investigate the residual bond stress. In this study, it was taken as 63% of the bond stress capacity according to the test results of 16 push-out specimens by Yang et al [32]. en, Table 3: Calculation results of the resistance of concrete dowel and transverse bar.…”

Section: Bond Strengthmentioning

confidence: 99%

Failure Modes and Resistance of Perforated Steel Rib Shear Connectors under Uplift Forces

Liu

2019

Advances in Civil Engineering

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In recent years, there is a rapid increase in the application of perforated steel rib shear connectors in steel and concrete composite structures. The connectors must not only ensure shear transfer but also sufficient uplift resistance. The shear behavior of connectors has been extensively investigated. However, studies on uplift resistance are lacking so far. Therefore, three push-out test specimens were tested to investigate the shear and tension behavior of perforated L-shaped and plain steel rib shear connectors. The failure modes of connectors were analyzed, and analytical models for the determination of uplift resistance were derived based on test results. The results showed that the ductility of perforated steel rib shear connectors under uplift force was smaller than that under shear force, and more severe concrete damage surrounding the rib and larger bending deformation of transverse steel bar was observed. The rib flange of L-shaped perforated rib has a significant contribution to the uplift resistance. It was suggested to increase the rib height of L-shaped rib to avoid the horizontal crack at the height of the rib flange. The validity of the proposed analytical models was confirmed by comparing the failure modes and capacities of specimens.

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Effect of concrete cover on the bond-slip behavior between steel section and concrete in SRC structures

Cited by 79 publications

References 19 publications

Numerical Study of Bond Slip between Section Steel and Recycled Aggregate Concrete with Full Replacement Ratio

Numerical Study of Bond Slip between Section Steel and Recycled Aggregate Concrete with Full Replacement Ratio

Behavior of Grouted Sleeve Splice for Steel Profile under Tensile Loadings

Failure Modes and Resistance of Perforated Steel Rib Shear Connectors under Uplift Forces

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