Magazine of Concrete Research · 2012 · 14 citations · 12 references
EngineeringMaterials EngineeringMaterials ScienceDesign OptimizationStructural EngineeringStructural MaterialsBending Of BeamsReinforced Concrete StructuresReinforcement MaterialsStructural DesignStructural MechanicsStructural OptimizationExternal PrestressingFrp StrengtheningOptimal DesignPrestressed BeamsPrestressed Concrete StructuresPrestressing ReinforcementReinforced Concrete Beam DesignSteel Reinforcement
Fibre-reinforced polymers (FRPs) have not captured the market for reinforcing bars, or found uses even as external prestressing tendons, despite their obvious advantages in terms of lack of corrosion. This paper considers the constraints that underlie the optimal design for beams reinforced or prestressed with FRP, and compares the result with designs for beams with steel reinforcement. This is done by means of a diagram that compares the depth of the beam with the area of reinforcement, on which most of the governing constraints can be plotted. The method allows generic conclusions to be drawn about the governing principles.
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