Mechanical Analysis of Stress Distribution in a Carbon  Fiber-Reinforced Polymer Rod Bonding Anchor

Feng, Peng; Zhang, Pan; Meng, Xinmiao; Ye, Lieping

doi:10.3390/polym6041129

Cited by 35 publications

(11 citation statements)

References 17 publications

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“…Glass fiber-reinforced polymer (GFRP)-concrete composite structures have been widely used in infrastructure [1,2,3,4,5]. The connection between GFRP and concrete is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

et al. 2019

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In order to evaluate the shear performance of sand-coated glass fiber-reinforced polymer (GFRP) perforated connectors (SCGPC) embedded in concrete, 8 pull-out tests were conducted. Finite element (FE) analysis considering GFRP failure and cohesion between GFRP and concrete of SCGPC were conducted for parametric analysis. Effects of surface treatment, hole’s radius, embedment length, and multi holes were examined. The test and theoretical analysis revealed that the strength of SCGPC is considerably larger than GFRP Perforated Connector (GPC). The stiffness of SCGPC is determined by the adhesion between concrete and GFRP. When GFRP plate’s thickness is less than the critical thickness, the embedment length plays a major role in the strength of SCGPC. When embedment length is less than the effective bond length, the shear strength of SCGPC is governed by both the adhesion and GPC’s shear capacity; otherwise, the strength of SCGPC is governed by the adhesion strength. Furthermore, an empirical equation was suggested to predict the shear strength of SCGPC. The equation involves the failure mechanism of both bond and GPC and deals the strength of SCGPC into two ranges according to the embedment length. Good agreement was achieved between the strength prediction by the suggested equation and the parametric analysis result.

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“…Glass fiber-reinforced polymer (GFRP)-concrete composite structures have been widely used in infrastructure [1,2,3,4,5]. The connection between GFRP and concrete is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

et al. 2019

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“…CONTA174 and TARGE170 were used to simulate the follow-up and extrusion action between the load transfer medium and the steel sleeve. The FC at the interface between steel and resin is usually taken as 0.1–0.3 (Cai et al, 2016; Feng et al, 2014). Because the load transfer medium has varying stiffness, it is necessary to determine the appropriate FC to accurately evaluate the design parameters of the anchorage system with different cable capacities.…”

Section: Methodsmentioning

confidence: 99%

Evaluation and prediction of carbon fiber–reinforced polymer cable anchorage for large capacity

Feng

Wang

2019

Advances in Structural Engineering

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Aiming to address the problems of stress concentration on conical wedge anchorage, a fiber-reinforced polymer cable anchorage with segmental variable stiffness of the load transfer medium was proposed. The key parameters that affect the anchorage behavior were investigated. The mechanical properties of the carbon fiber–reinforced polymer tendon and load transfer medium were tested. The failure mode, anchoring efficiency, stress, and displacement in the anchor zone were studied. The parameter optimization was performed using an experimentally verified finite element simulation. The parameters of the anchorage system with large capacity were evaluated. The results demonstrate that the compressive strength of the load transfer medium is the designed stress limit for the anchorage system. The cable does not slip or become damaged in the anchor zone, and the anchoring efficiency reaches 91%. The distribution of the shear and radial stress on the cable surface is smooth, and the stress concentration is greatly relieved. The result of the finite element simulation is consistent with the experimental values when the friction coefficient is 0.15, and the material and geometric parameters of the anchorage system with cable forces of 5000, 10,000, 15,000, and 20,000 kN are suggested. The geometric parameters of the anchor system with diverse cable capacity can be preliminarily designed based on the fitting equations.

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“…Numerous efforts from researchers [e.g. [10][11][12][13][14][15][16][17][18][19] came up with three basic types of anchorage systems for CFRP tendons with respect to load transfer mechanism, namely, (1) adhesively bonded anchorage system (such as in Fig. 1a), (2) mechanical clamping anchorage system (such as in Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…They found that the cohesive zone model with progressive damage was the most reasonable for describing and predicting the approximate distribution of shear stress in the epoxy bonded anchorages among the other models. Feng et al [15] characterized the mechanical properties of single-rod and a multi-rod straight-pipe bonded anchorage by using the finite element method.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Experimental study on fatigue performance of adhesively bonded anchorage system for CFRP tendons

Xie

Tang

Wang

et al. 2018

Composites Part B: Engineering

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This study is concerned with the fatigue performance of adhesively bonded anchorage for carbon fiber reinforced polymer (CFRP) tendons subjected to cyclic loading. Series of monotonous and cyclic experiments under different stress amplitudes and loading frequencies were carried out in order to investigate the mechanical performance of bonded anchorage systems for CFRP tendons and to study the influence of cyclic loading on the anchoring performance. The fatigue damage and the relationships between damage, loading frequency and interfacial temperature rise of anchorage systems were analyzed. The results show that cyclic tension-tension loading is instrumental in enhancing the synergistic interaction between the anchorage components and it also stabilizes the entire anchorage system performance provided that the stress amplitude is kept lower than 10% of the ultimate tensile capacity of the anchorage systems and the maximum stress is less than 50% of the ultimate capacity of the anchorage system. The loading frequency influences significantly the temperature variation in the anchorage system. A high loading frequency may result in a sharp temperature rise at the early-stage and mid-stage of cyclic tension-tension loading, followed by a rather stable late stage. This phenomenon of temperature rise during fatigue tests may indicate the extent of fatigue damage in the anchorage system.

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Mechanical Analysis of Stress Distribution in a Carbon Fiber-Reinforced Polymer Rod Bonding Anchor

Cited by 35 publications

References 17 publications

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

Evaluation and prediction of carbon fiber–reinforced polymer cable anchorage for large capacity

Experimental study on fatigue performance of adhesively bonded anchorage system for CFRP tendons

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