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Influence of Compressive GFRP bars on Flexural Performance of Reinforced Concrete Beams

Hassanpour, Sina | 2019

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51967 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Khaloo, Alireza
  7. Abstract:
  8. This study inspects the flexural response of RC beams at the presence of compressive GFRP bars as well as tensile bars. Total of 9 reinforced beams were investigated. Three values of tensile reinforcement percentage were considered. For each tensile reinforcement value, three types of compressive reinforcement were taken into account which are classified into zero compressive bars, less than tensile reinforcement value and similar to tensile reinforcement value. The concrete was used in this study is C45 and as a constant parameter.Specimens were tested with four-point bending method using the actuator equipped at the strong floor laboratory to attain maximum flexural strength and deflections of the beams. LVDT sensors were used to monitor the values of both tensile and compressive strains and deflection at the mid-point of the beams. The load-deflection curves then were produced using the computer connected to the actuator and maximum deflections at the centre of the beam and ductilities then were compared to study the influence of the GFRP bars at compression.Results indicate that the compression GFRP bars have a significant effect on ducitily of the beams, yet no considerable effect on the maximum flexural strength of the specimens
  9. Keywords:
  10. High Strength Concrete (HSC) ; Glass Fiber Reinfoced Polymer (GFRP) ; Flexural Performance ; Reinforcement Concrete Beam ; Moment-Curvature Cure ; Structural Analysis ; Composite Materials ; Ductility ; Failure Modes

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