Pull-Out Behavior of Headed Anchors Used in a Totally Prefabricated Counterfort Retaining Wall System

Farhat, Maen; Issa, Mohsen A.; Prado, Bruno F. J.

doi:10.15554/pcij64.1-04

Cited by 3 publications

(3 citation statements)

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Section: Resultscontrasting

confidence: 95%

“…Figure 9 presents the characteristic failure mode of screw anchors in fiber-reinforced concrete observed in the pull-out tests. This was different from that observed for unreinforced substrates [22,51,52]. In the first case, the maximum destructive force increased by approximately 3%, 13%, 17%, and 25% compared to the reference sample for steel fiber contents of 10, 20, 30, and 50 kg/m 3 , respectively.…”

Section: The Results Of the Pull-out Testcontrasting

confidence: 75%

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Load Capacity of Screw Anchor Installed in Concrete Substrate Reinforced with Steel Fibers Depending on Fiber Content

Konieczny,

Dudek,

Kukiełka

2024

Materials

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Pull-out strength tests conducted on screw anchors in uncracked concrete substrates of the C25/30 class are presented in this article. The destructive force for anchor–concrete fasting was tested, and in the next step, the average pull-out strengths of screw anchors in concrete substrates with and without the addition of steel fiber were determined. Currently, the pull-out strengths of anchors in fiber-reinforced concrete substrates are defined as for unreinforced concrete substrates. Therefore, pull-out tests were performed for screw anchors in fiber-reinforced concrete substrates. Fiber contents of 10, 20, 30, and 50 kg/m3 were used. An increase in the load capacity of screw anchors in a fiber-reinforced concrete substrate was demonstrated in a pull-out test compared to base samples without fibers. The coefficient related to the actual fastening behavior of a screw anchor in the fiber-reinforced concrete substrate was determined. It was assumed that a coefficient of 13.10 should be adopted. This was the lowest value obtained for the load capacity in this study for screw anchors in a fiber-reinforced concrete substrate.

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Section: Resultscontrasting

confidence: 95%

Section: The Results Of the Pull-out Testcontrasting

confidence: 75%

Load Capacity of Screw Anchor Installed in Concrete Substrate Reinforced with Steel Fibers Depending on Fiber Content

Konieczny,

Dudek,

Kukiełka

2024

Materials

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“…For the concrete class of C20/25, a reduction of the load capacity by 5% for the fibre content of 15.0 and 30 kg/m 3 and 12% for the content of 50.0 kg/m 3 was obtained (Figure8). While Farhat et al[53] obtained load capacity equal to 17.58 kN for the same concrete class (C20/25) and fibre content of 150 kg/m 3 , but they used torque-controlled bolt anchor. Ahmed and Braimah determined that the tensile capacity for undercut anchors installed in concrete with a strength of 95 MPa reinforced with a fibre content of 40 kg/m 3 increased for installation depth was up to 120 mm and then decreased.In the next step, the coefficient resulting from the compressive strength of the substrate has been included according to the procedure for determining load capacity in accordance with guidelines.…”

mentioning

confidence: 99%

Effect Steel Fibre Content on the Load-Carrying Capacity of Fibre-Reinforced Concrete Expansion Anchor

2021

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The article presents the pull-out strength tests carried out on M10 expansion anchors in non-cracked and cracked concrete with a crack width cw = 0.30 mm. The breaking loads and the average pull-out strength of anchors in fibre-reinforced concrete substrates were determined. Fibre content ratios of 15, 30 and 50 kg/m3 were used. In addition, two different classes of concrete (C20/25 and C50/60) were tested. The addition of steel fibres caused a decrease in the pull-out strength by 5% for non-cracked concrete of C20/25 class and fibre content up to 30 kg/m3 and a further 7% for the remaining specified dosage. While for concrete of the C50/60 class, it a decrease in the pull-out strength of up to 20% was observed. For cracked concrete class C20/25 with crack initiation cw = 0.30 mm, the reduction was from 9% to 16% in relation to non-cracked concrete and a maximum of 18% for the fibre content of 50 kg/m3. The difference between the tensile load capacity of C50/60 class cracked and non-cracked concrete was lower than 5% and fell within the measurement error.

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Flexural behavior of UHPC-filled longitudinal connections with non-contacting lap-spliced reinforcements for narrow joint width

Jiang

Feng

et al. 2022

Structures

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Pull-Out Behavior of Headed Anchors Used in a Totally Prefabricated Counterfort Retaining Wall System

Cited by 3 publications

References 0 publications

Load Capacity of Screw Anchor Installed in Concrete Substrate Reinforced with Steel Fibers Depending on Fiber Content

Load Capacity of Screw Anchor Installed in Concrete Substrate Reinforced with Steel Fibers Depending on Fiber Content

Effect Steel Fibre Content on the Load-Carrying Capacity of Fibre-Reinforced Concrete Expansion Anchor

Flexural behavior of UHPC-filled longitudinal connections with non-contacting lap-spliced reinforcements for narrow joint width

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