Influence of geometrical and installation parameters on performance of CFRP anchors

Llauradó, Paula Villanueva; Fernández-Gómez, Jaime; Ramos, Francisco José González

doi:10.1016/j.compstruct.2017.05.035

Cited by 25 publications

(6 citation statements)

References 21 publications

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“…A lot of research has been done on this subject in the last 15 years. However, the number of studies on a shear stress‐shear displacement material model, including the effects of anchors between anchored CFRP strips and the concrete surface, is extremely limited to the very few studies on this subject in the literature 38–43,52 . One of these studies was conducted by Mertoğlu et al 40 Within the scope of this study, a proposal has been developed about the shear stress‐shear displacement interface material model between anchored CFRP strips and the concrete surface.…”

Section: Theory Of Bond‐slip Model For Anchoraged Cfrp Stripmentioning

confidence: 99%

Bond‐slip model between anchored CFRP strip and concrete by using ANN

Anıl

Çevik

2023

Structural Concrete

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For the last 20 years, carbon fiber reinforced polymers (CFRP) have been widely used in the retrofitting and strengthening of structures with inadequate earthquake performance. One of the most important design criteria in retrofitting and strengthening details developed with CFRP is delaying the debonding of CFRP strips from the surface. For this reason, the use of anchors in reinforcement details developed with CFRP has increased. In this study, available experimental data in the literature on bond‐slip research related to anchored CFRP strips were collected and a database was created. By using this database, it was aimed to create a generalized capacity equation and constitutive bond‐slip model for anchored strips via the artificial neural networks technique. The proposed NN models on the constitutive bond‐slip model are intended to be useful in design codes and finite element algorithms.

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Section: Theory Of Bond‐slip Model For Anchoraged Cfrp Stripmentioning

confidence: 99%

Bond‐slip model between anchored CFRP strip and concrete by using ANN

Anıl

Çevik

2023

Structural Concrete

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“…The manufacturing method of CFRP anchors typically involves several steps [40,41]. First, a suitable unidirectional CFRP sheet is selected and cut to the required dimensions, with a width of 150 mm and a length of 80 mm.…”

Section: Cfrp Anchorage System Strengthening 231 Fabrication Of Cfrp ...mentioning

confidence: 99%

Damage Pattern Recognition for Corroded Beams Strengthened by Cfrp Anchorage System Based on Acoustic Emission Techniques

Pan

Zheng

Zhou

et al. 2023

Preprint

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“…A limited number of studies 1,11,31,32,[38][39][40][41][42] have proposed interface models which include the effect of anchors on the shear stress-shear displacement behavior. Merto glu et al 31 proposed a shear stress-shear displacement interface material model for anchored CFRP-to-concrete joints.…”

Section: Anchored Bond-slip Modelsmentioning

confidence: 99%

A machine‐learning‐based constitutive bond‐slip model for anchored CFRP strips externally bonded on concrete members

Kurtoğlu

Anıl

Çevik

2022

Structural Concrete

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Strengthening is often required for reinforced concrete, steel, and masonry structures or structural elements when they possess insufficient performance against external loads such as earthquakes. Recently, the use of carbon fiber-reinforced polymers (CFRP) has been considered a viable strengthening technique alternative to traditional methods. The major concern is premature debonding failure hindering the efficient use of CFRP systems. FRP anchor systems have been used to avoid this phenomenon. This paper employs a machine learning (ML)-based algorithm (support vector regression) to propose predictive models to simulate the bond-slip behavior of anchored CFRP strips externally bonded to the concrete surface. A comprehensive database was constructed using the previous reports on the bond-slip behavior of FRP-to-concrete joints anchored with CFRP strips. Afterwards, the collected database was used to train and validate the proposed models. The input parameters cover all possible factors, that is, compressive strength of concrete, width of concrete block, anchor hole diameter, anchor hole depth, number of anchors at one row, number of anchors at one column; elastic modulus, width, bonding length, and thickness of CFRP strip. The output parameters are maximum shear capacity, residual shear capacity, displacement values at peak shear, and residual shear. Results imply that the proposed models have high prediction accuracies with low error rates. Proposed models are also presented in code format to be easily incorporated into analysis software for practical use.

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Influence of geometrical and installation parameters on performance of CFRP anchors

Cited by 25 publications

References 21 publications

Bond‐slip model between anchored CFRP strip and concrete by using ANN

Bond‐slip model between anchored CFRP strip and concrete by using ANN

Damage Pattern Recognition for Corroded Beams Strengthened by Cfrp Anchorage System Based on Acoustic Emission Techniques

A machine‐learning‐based constitutive bond‐slip model for anchored CFRP strips externally bonded on concrete members

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