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ORIGINAL PAPER
Numerical Investigation and Cost Analysis of FRP-Concrete Unidirectional Hybrid Slabs
1
Strength of Materials and Structural Engineering Department, Polytechnic University of Catalonia, Colom 11, TR45, 08222, Terrassa, Spain
2
Department of Continuum Mechanics and Structures, Escuela de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040, Madrid, Spain
Online publication date: 2021-12-07
Publication date: 2021-12-01
International Journal of Applied Mechanics and Engineering 2021;26(4):156-166
KEYWORDS
ABSTRACT
Fiber-reinforced polymer (FRP) has been commonly used to reinforce concrete structures. The kinds of FRP demonstrate an effective alternative to various methods of reinforcement in concrete structures subjected to bad environmental conditions which cause corrosion and damage to concrete. Due to their lightweight, high strength, and high corrosion and fatigue resistance, Fiber Reinforced Polymer (FRP) composites have been widely applied in steel substitution during revitalization interventions. This paper presents numerical three-points bending tests on different models to investigate the effect of the reinforcements; Carbon, Glass, and Aramid fibers to find the corresponding cost of each one. Also, there is an available experimental model for verifying the results of the FEM that demonstrated broad agreement with the experimental statement, concerning the load-displacement curve. After validating the models, alternative designs such as type of the FRP, position of the FRP, and amount of the FRP usage were numerically tested to study the influence of each on the load-bearing capacity. The results showed that the best configuration would be one with GFRP and the load-bearing capacity is around 9 kN in the optimum design.
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