Generalized Axial Stress-Strain Response of Rectangular Columns Confined Using CFRP Jackets and Anchors

Hany, Najwa F.; Hantouche, Elie G.; Harajli, Mohamed H.

doi:10.1061/(asce)cc.1943-5614.0000724

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…As reported in the figures, Equations (7) and (8) are able to predict with good accuracy (AAE = 7.5% and MSE = 12%) the f cc but show less accuracy (AAE = 24.0% and MSE = 20.0%) in predicting the corresponding strain ε cc . Significant variability in the confined strain values was also reported in numerous studies (e.g., Hany et al [52,53]). It can be generally observed from the comparisons provided in Figure 6a,b that the analytical values given by the proposed Equations (7) and (8) agree well with the test results compared with the model proposed by Yan [26].…”

Section: Accuracy Of the Proposed And Existing Strength And Strain Mosupporting

confidence: 54%

Axial Compressive Stress-Strain Model Developed for FRP-Confined Concrete Columns with Elliptical Cross Sections

Isleem

Wang

2018

J. Compos. Sci.

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Most existing studies conducted on fiber-reinforced polymer (FRP)-confined concrete have considered circular and square concrete columns, while limited studies have considered columns with rectangular sections. Studies have confirmed that the circular cross-sections exhibited higher confinement effectiveness, whereas in the case of non-circular cross-sections the efficiency of FRP confinement decreases with an increase of the sectional aspect ratio and there is no significant increase, particularly for columns with the aspect ratio of 2.0. As recently suggested by researchers, to significantly increase the effectiveness of FRP-confinement for these columns involves changing a rectangular section into an elliptical or oval section. According to the literature, most of the existing confinement models for FRP-confined concrete under axial compression have been proposed for columns with circular and rectangular cross-sections. However, modeling of the axial strength and strain of concrete confined with FRP in elliptical cross-sections under compression is limited. Therefore, this paper provides new expressions based on limited experimental data available in the literature. For a sufficient amount of FRP-confinement, the threshold value was proposed to be 0.02. Finally, the accuracy of the proposed model was verified by comparing its predictions with the same test database, together with those from the existing models.

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Section: Accuracy Of the Proposed And Existing Strength And Strain Mosupporting

confidence: 54%

Axial Compressive Stress-Strain Model Developed for FRP-Confined Concrete Columns with Elliptical Cross Sections

Isleem

Wang

2018

J. Compos. Sci.

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show abstract

Analytical model for CFRP confined masonry columns subjected to monotonic and cyclic compression

Conceptualisation

Zahra

Asad

et al. 2022

Composite Structures

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Effect of active and passive concrete confinement on the bond stress-slip response of steel bars in tension

Assaad

Hany

Fawaz³

et al. 2021

Construction and Building Materials

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Generalized Axial Stress-Strain Response of Rectangular Columns Confined Using CFRP Jackets and Anchors

Cited by 6 publications

References 14 publications

Axial Compressive Stress-Strain Model Developed for FRP-Confined Concrete Columns with Elliptical Cross Sections

Axial Compressive Stress-Strain Model Developed for FRP-Confined Concrete Columns with Elliptical Cross Sections

Analytical model for CFRP confined masonry columns subjected to monotonic and cyclic compression

Effect of active and passive concrete confinement on the bond stress-slip response of steel bars in tension

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