Constitutive Law of Rectangular Concrete with Carbon Fiber Sheet Confinement

Abstract:

This paper investigates the stress-strain relationship of a rectangular cross-section concrete element reinforced with Carbon fiber Sheet (CFS). In order to verify the confinement effect of the carbon fiber sheet over the concrete, an experiment was conducted using concrete elements with CFS by changing the ratio of side length of the cross section, the ratio of the height to the short side and the amount of CFS layers. In total, 16 concrete specimens were tested under compressive monotonic loading. In the experiment, the compressive strength decreases, and the ultimate strain increases as the ratio of side length increases. Furthermore, we proposed an evaluation formula for a rectangular cross-section concrete element reinforced with CFS. The proposed formula corresponds well to the experimental results.

• Periodical: Key Engineering Materials (Volume 942)
• Pages: 165-171
• DOI: https://doi.org/10.4028/p-d99uxg
• Online since: March 2023
• Authors: Hayashi Kazuhiro*
• Keywords: Carbon Fiber Sheet, Effective Confinement Area, Evaluation Formula, Fiber-Reinforced, Stress-Strain Relationship

References

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