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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Moment-Shear Interaction Mechanism for Carbon Fiber- Reinforced Polymer-Strengthened Reinforced Concrete Beams in Flexure
Author(s): Yail J. Kim
Publication: Structural Journal
Appears on pages(s): 967-976
Keywords: fiber-reinforced polymer (FRP); modeling; moment-shear interaction; strengthening
Abstract:This paper presents an analytical model to study the moment-shear interaction of reinforced concrete beams strengthened in flexure using externally bonded (EB) or near-surface mounted (NSM) carbon fiber-reinforced polymer (CFRP) composites. Emphasis of the model is placed on understanding the shear-resisting mechanism of CFRP-strengthened beams, which is not well-documented in the research community when compared with flexural models. The contribution of CFRP is explained based on the beam and arch action components of a strengthened beam. A large compilation of experimental data consisting of 123 beams is used to assess the developed theory and to propose the response criteria of CFRP-strengthened beams subjected to moment-shear interaction. Existing models are evaluated, including the applicability of the ACI 318-11 and ACI 440.2R-08 shear resistance expression Vc for strengthened beams.
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