Effect of cracks and optimizations of high strength concrete beams with hybrid fibre reinforced polymer (HYFRP) laminates
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This Research article illustrates Effects of cracks and optimization on the strengthening of HSC beam with the addition ofhybrid FRP laminates under the flexural type of loading. This current research work intends to study how alternative sequencesof carbon FRP (CFRP) and glass FRP (GFRP) laminates with the combinations of hybrid FRPs effect the enhancement ofthe reinforced cement concrete beams. For this research investigation, 17 rectangular beams were cast and prepared usingGlass FRP and Carbon FRP. Out of the casted beam, one beam aided as a control concrete beam and the remaining 16 beamwere supported by the use of hybrid Fibre Reinforced Polymer laminates in the form of glass and carbon. Concrete withreinforcements after laminating beams with two, three, and even four layers of HyFRP and a static type of load was givento the beam until they failed. The initial and progressive fractures of HSC beam, as well as beam failure both without andwith hybrid FRP laminates were investigated and analysed. Comparisons and presentations of analytical and experimentaldata were done with the intention of deriving new findings. The conclusions of the tests lead one to the assumption thatthe consequences of hybrid FRPs on the cracks and ductility of High Strength Concrete beams are strengthened differentlydepending on the order of the FRP layers.
Abstract
This Research article illustrates Effects of cracks and optimization on the strengthening of HSC beam with the addition ofhybrid FRP laminates under the flexural type of loading. This current research work intends to study how alternative sequencesof carbon FRP (CFRP) and glass FRP (GFRP) laminates with the combinations of hybrid FRPs effect the enhancement ofthe reinforced cement concrete beams. For this research investigation, 17 rectangular beams were cast and prepared usingGlass FRP and Carbon FRP. Out of the casted beam, one beam aided as a control concrete beam and the remaining 16 beamwere supported by the use of hybrid Fibre Reinforced Polymer laminates in the form of glass and carbon. Concrete withreinforcements after laminating beams with two, three, and even four layers of HyFRP and a static type of load was givento the beam until they failed. The initial and progressive fractures of HSC beam, as well as beam failure both without andwith hybrid FRP laminates were investigated and analysed. Comparisons and presentations of analytical and experimentaldata were done with the intention of deriving new findings. The conclusions of the tests lead one to the assumption thatthe consequences of hybrid FRPs on the cracks and ductility of High Strength Concrete beams are strengthened differentlydepending on the order of the FRP layers.
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