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Fibers 2015, 3(4), 411-431; doi:10.3390/fib3040411

Finite Element Modeling of GFRP-Reinforced Concrete Interior Slab-Column Connections Subjected to Moment Transfer

Department of Civil Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
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Author to whom correspondence should be addressed.
Academic Editor: Mahmoud Reda Taha
Received: 29 August 2015 / Accepted: 6 October 2015 / Published: 12 October 2015
(This article belongs to the Special Issue Fiber Reinforced Polymers (FRP) for Infrastructure Applications)
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Abstract

A finite element model (FEM) was constructed using specialized three-dimensional (3D) software to investigate the punching shear behavior of interior slab-column connections subjected to a moment-to-shear ratio of 0.15 m. The FEM was then verified against the experimental results of full-scale interior slab-column connections reinforced with glass fiber reinforcement polymer (GFRP) bars previously tested by the authors. The FEM results showed that the constructed model was able to predict the behavior of the slabs with reasonable accuracy. Afterward, the verified model was used to conduct a parametric study to investigate the effects of reinforcement ratio, perimeter-to-depth ratio, and column aspect ratio on the punching shear behavior of such connections. The test results showed that increasing the tested parameters enhanced the overall behavior of the connections in terms of decreasing deflections and reinforcement strain and increasing the ultimate capacity. In addition, the obtained punching shear stresses of the connections were compared to the predictions of the Canadian standard and the American guideline for FRP-reinforced concrete structures. View Full-Text
Keywords: interior connections; punching shear; GFRP bars; moment-to-shear ratio; flexure reinforcement ratio; finite element; column aspect ratio;  perimeter-to-depth ratio interior connections; punching shear; GFRP bars; moment-to-shear ratio; flexure reinforcement ratio; finite element; column aspect ratio;  perimeter-to-depth ratio
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gouda, A.; El-Salakawy, E. Finite Element Modeling of GFRP-Reinforced Concrete Interior Slab-Column Connections Subjected to Moment Transfer. Fibers 2015, 3, 411-431.

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