Effectiveness of Fan Anchors in Preventing Debonding in FRP-Strengthened Steel Members

Abstract Fibre Reinforced Polymers (FRPs) are extensively employed to strengthen existing structures because of their several advantages over other strengthening techniques. On the hand, premature debonding FRP reduces its effectiveness in steel structures. Anchoring composites is an effective solution delay or even prevent debonding. Very limited anchorage methods, however, have been introduced for FRP-strengthened and need system remains. Fan anchor has validated as one remedies against failure concrete Considering that fan anchors offer, use proposed evaluated this paper. Since FRP-steel joints a different bond-slip law than FRP-concrete strengthened members prone buckling-debonding interactions, study focuses on efficiency delaying by assuming adequate mechanical connection between dowel substrate provided. Three experimental studies involving shear, flexural buckling components were simulated through finite element modelling, added models after validation. The effect strength, mode FRP's strain distribution was examined. showed successfully able mode, which increased strength ductility exploited higher capacity plates.