Analytical model for the bond stress-slip relationship of deformed bars in normal strength concrete

Lin, Hui; Zhao, Yongjun; Ožbolt, Joško; Feng, Peng; Jiang, Cheng; Eligehausen, Rolf

doi:10.1016/j.conbuildmat.2018.11.258

Cited by 113 publications

(23 citation statements)

References 39 publications

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“…Understanding of the load transfer, damage patterns, and deformation associated with bond response is included in the mechanism of the bond. The Eligehausen equation that replaces peak bond strength by pull-out test results can effectively predict the local bond stress slip relationship between rebar and concrete [12]. Therefore, bond interaction between steel and concrete (which is also the property of the cohesive element) is simulated through accepted Eligehausen empirical equations [12].…”

Section: Theoretical Bond Stress-slip Modelsmentioning

confidence: 99%

“…The Eligehausen equation that replaces peak bond strength by pull-out test results can effectively predict the local bond stress slip relationship between rebar and concrete [12]. Therefore, bond interaction between steel and concrete (which is also the property of the cohesive element) is simulated through accepted Eligehausen empirical equations [12]. To obtain the maximum bond stress the experimental result on mechanical behavior such as compression, tensile and flexural tests was taken as input material properties.…”

Section: Theoretical Bond Stress-slip Modelsmentioning

confidence: 99%

See 1 more Smart Citation

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

Heylemelecot¹,

Kedir²,

Agon³

2020

AJCEA

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Section: Theoretical Bond Stress-slip Modelsmentioning

confidence: 99%

Section: Theoretical Bond Stress-slip Modelsmentioning

confidence: 99%

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

Heylemelecot¹,

Kedir²,

Agon³

2020

AJCEA

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“…The pull-out failure mode occurred in all specimens. Lin et al (2019) concluded that pull-out failure mode tends to happen when concrete cover to steel rebar diameter ratio c/d s ≥ 4.5 to 5. The failure phenomenon agreed well with previous conclusions since c/d s = 4.5 in the present experiment.…”

Section: Experimental Observationsmentioning

confidence: 99%

Bond Performance between Magnetized Rebar and Self-Compacting Steel Fiber Reinforced Concrete

Zhang

Changyu

Xuegang

et al. 2019

ACT

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A new method aiming to improve bond performance between rebar and concrete is proposed in present paper. In this method, the rebar embedded in self-compacting steel fiber reinforced concrete (SSFRC) was magnetized to attract surrounding steel fibers. The special combination of rebar and the attracted steel fiber was expected to improve bond strength of rebar and concrete. Six groups of specimens were made to investigate the effect of rebar magnetization, steel fiber volume fraction and compacting method on bond strength between rebar and concrete. Results show that magnetization of rebar can greatly improve bond strength with the highest increase of 52%. The steel fiber volume fraction can be largely reduced under rebar magnetization condition and the highest bond strength 23.78 MPa was found on specimen with rebar magnetization of 30 mT and 0.25% steel fiber. Moreover, SSFRC was better than vibrated steel fiber reinforced concrete (VSFRC) when using this new method. A bond stress-slip model reflecting the effect of rebar magnetization and steel fiber volume fraction was also developed and verified by experimental results. 1 Master course student, College

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“…Lin et al [5] did some experimental works to study the local bond stress-slip relationships of the embedded bar inside the RC elements. Some parameters being investigated are the effect of concrete compressive strength, the concrete cover thickness, and the stirrup configuration, which passively provide confinement to the concrete.…”

Section: Introductionmentioning

confidence: 99%

Modeling Pull-Out Behavior of the Deformed Rebar Embedded Inside the Reinforced Concrete

Yudoprasetyo

Piscesa

Rasyid

2022

Journal of Civil Engineering

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This study presents the modeling of the pull-out behavior of deformed bars embedded inside the reinforced concrete element. The simulation uses an in-house finite element package called 3D-NLFEA. Sufficiently small solid elements that consider the frictional resistance and mechanical interlocking between the bar thread and the concrete matrix were used in the simulation. The effect of concrete compressive strength, cover thickness, and stirrup configuration on the pull-out capacity of the modeled specimens are investigated thoroughly. The modeling found out that the 3D-NLFEA package can capture the bondfracture process at the interface between the bars and concrete. The fracture that occurs in the concrete was dominated by tensile splitting failure. The presence of stirrups that confined the concrete and restrained the crack propagation significantly influences the pull-out capacity, cracking pattern, and failure behavior at the bar interface with the concrete. The analysis results from 3D-NLFEA are also compared with the 3D-RBSM analysis results available in the literature. From the comparisons, it was found out that the 3D-NLFEA prediction was lower than the 3D-RSBM. From 3D-RSBM, the bond-slip response did not show residual load behavior, while from 3D-NLFEA, the residual load behavior was captured. As for the failure crack pattern, the prediction from 3D-NLFEA was somewhat similar to 3D-RSBM.

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Analytical model for the bond stress-slip relationship of deformed bars in normal strength concrete

Cited by 113 publications

References 39 publications

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

Bond Performance between Magnetized Rebar and Self-Compacting Steel Fiber Reinforced Concrete

Modeling Pull-Out Behavior of the Deformed Rebar Embedded Inside the Reinforced Concrete

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