Experiments of the Bond Behavior Between Deformed Bars and Concrete in the Neighborhood of the Crack

Hayasi, Shizuo; Yoshida, Hiroyuki; Kokusho, Seiji

doi:10.3130/aijsx.348.0_86

Cited by 4 publications

(3 citation statements)

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“…It should be noted that the bond degradation will occur in the vicinity of flexure cracks . To address this issue, CEB‐FIP suggested that the bond stress τ and the slip s should be reduced by the factor β .

β = 0.2 x / d_{s} \leq 1

where x is the distance from the crack‐rebar intersection centerline to the desirable location, and d s is the diameter of reinforcement.…”

Section: Fe Modeling Of Crack Propagationmentioning

confidence: 99%

Investigation of crack propagation of the concentric anchorage zones based on linear elastic fracture mechanics

Zhou

Zhao

2018

Structural Concrete

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In the past decades, significant progress has been made in prediction of the structural behavior of the posttensioned anchorage zones, an aspect which has not yet been sufficiently clear up, however, is the serviceability behavior of posttensioned anchorage zones, especially with regard to the crack formation. To address this problem, a numerical method based on linear elastic fracture mechanics is proposed to investigate the crack propagation in posttensioned anchorage zones, and predict the structural behavior in the serviceability state. Following Irwin's approach, an effective crack length is proposed for I‐II mixed‐mode crack growth. The numerical analyses of the tested anchorage zone specimens show that the proposed procedure is able to accurately describe the crack propagation behavior, including crack length, crack width, and crack trace. Parameter analysis is performed to study the effects of the layout of the reinforcement on crack width in the service state. The results show that the proper bursting rebar diameters and rebar spacing can lead to the significant decrease of the crack width, while the longitudinal rebar makes little contribution to cracking control.

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β = 0.2 x / d_{s} \leq 1

where x is the distance from the crack‐rebar intersection centerline to the desirable location, and d s is the diameter of reinforcement.…”

Section: Fe Modeling Of Crack Propagationmentioning

confidence: 99%

Investigation of crack propagation of the concentric anchorage zones based on linear elastic fracture mechanics

Zhou

Zhao

2018

Structural Concrete

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“…It is, therefore, practically impossible to establish a local bond stress-slip relation, since the measured bond stress-slip relation generally represents the average relation over the measurement length. In spite of many difficulties, several experimental bond-stress slip relations have been proposed [7,11]. There are also many simple relations among the proposed models due to these difficulties [1].…”

Section: Bond Stress-slipmentioning

confidence: 99%

Bond–slip behavior under monotonic uniaxial loads

Kwak

Kim

2001

Engineering Structures

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“…Reinforcement and concrete bond elements were bond-link ones chosen for two different bond conditions. The bond of materials in the connection joint core was based on Fujii cycle loading stress-slip relationship [5] and bond in the slab was formed by Morita-Kaku [6] or Kokusho [7] stress-slip principle. The bond stress-slip and reinforcement model characteristics for the slab reinforcement are presented in Table 2.…”

mentioning

confidence: 99%

Evaluation of Wall-Slab Connection Behaviour Under Extreme Lateral Actions/Ekstremaliomis Horizontaliomis Apkrovomis Deformuojamų Sienų Ir Perdangų Sandūros Laikysenos Įvertinimas

Kudzys

1996

Journal of Civil Engineering and Management

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Darbe baigtinių elementų metodu modeliuojama gelžbetoninių sienų ir perdangos plokščių sandūrų laikysena ir gauti rezultatai sugretinti su eksperimentinių tyrimų duomenimis. Modeliavimui naudojami keturių tipų baigtiniai elementai (betono, armatūros, ryšio ir plyšio). Sienų ir plokščių sandūros geometriniai parametrai bei betono ir armatūros fizinės-mechaninės savybės gautos iš eksperimentinių duomenų. Penkių sandūrų modelių kraštinės sąlygos ir plyšių atsiradimo vietos parinktos iš šių duomenų. Nagrinėjamų modelių pleišėjimo vystymasis ir irimo būdai visiškai atitiko eksperimentinių bandymų rezultatus. Svarbiausiųjų įtempių vystymosi analizė parodė, kad dominuoja sandūros zonoje įstriža gniuždomo betono prizmė. Išilginės armatūros didinimas perdangos plokštėse sukelia sandūros laikomosios galios praradimą, yrant betonui įstrižame pjūvyje.

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Experiments of the Bond Behavior Between Deformed Bars and Concrete in the Neighborhood of the Crack

Cited by 4 publications

References 0 publications

Investigation of crack propagation of the concentric anchorage zones based on linear elastic fracture mechanics

Investigation of crack propagation of the concentric anchorage zones based on linear elastic fracture mechanics

Bond–slip behavior under monotonic uniaxial loads

Evaluation of Wall-Slab Connection Behaviour Under Extreme Lateral Actions/Ekstremaliomis Horizontaliomis Apkrovomis Deformuojamų Sienų Ir Perdangų Sandūros Laikysenos Įvertinimas

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