Fiber-reinforced polymer (FRP) bars represent an effective alternative to traditional steel bars to reinforce concrete members exposed to aggressive environments. Recently, innovative glass FRP (GFRP) bars made of an acrylic thermoplastic resin have been proposed and research made so far showed promising results. When applied as reinforcement of bridge slabs, GFRP bars are subjected to cyclic loading that may induce fatigue failure. In this paper, the fatigue behavior of thermoplastic-resin GFRP bars is experimentally investigated by means of tension-tension high-cycle fatigue tests. The results obtained show that thermoplastic-resin GFRP bars can be adopted as an alternative to steel in the reinforcement of concrete members subjected to fatigue loading.
Fatigue behavior of thermoplastic-resin glass fiber-reinforced polymer (GFRP) bars
Cagnoni A.;Bertolli V.;Pisani M. A.;D'antino T.
2025-01-01
Abstract
Fiber-reinforced polymer (FRP) bars represent an effective alternative to traditional steel bars to reinforce concrete members exposed to aggressive environments. Recently, innovative glass FRP (GFRP) bars made of an acrylic thermoplastic resin have been proposed and research made so far showed promising results. When applied as reinforcement of bridge slabs, GFRP bars are subjected to cyclic loading that may induce fatigue failure. In this paper, the fatigue behavior of thermoplastic-resin GFRP bars is experimentally investigated by means of tension-tension high-cycle fatigue tests. The results obtained show that thermoplastic-resin GFRP bars can be adopted as an alternative to steel in the reinforcement of concrete members subjected to fatigue loading.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
