Glass fiber-reinforced polymer (GFRP) have been employed as internal reinforcement of bridge decks in cold regions, where deicing salts rapidly degrade steel reinforcing bars. Bridge decks should be designed with respect to fatigue loading, which requires the knowledge of the bar and concrete fatigue behavior and of their interaction under cyclic loading. In this paper, the behavior of a GFRP-reinforced concrete slab subjected to a quasi-static 4-point bending test is compared with that of an equal specimen subjected to a fatigue test. These results are also compared with those of pull-out tests of the same bar and concrete.
STATIC AND FATIGUE BEHAVIOR OF CONCRETE SLABS REINFORCED WITH GFRP BARS
T. D'Antino;F. Focacci;
2023-01-01
Abstract
Glass fiber-reinforced polymer (GFRP) have been employed as internal reinforcement of bridge decks in cold regions, where deicing salts rapidly degrade steel reinforcing bars. Bridge decks should be designed with respect to fatigue loading, which requires the knowledge of the bar and concrete fatigue behavior and of their interaction under cyclic loading. In this paper, the behavior of a GFRP-reinforced concrete slab subjected to a quasi-static 4-point bending test is compared with that of an equal specimen subjected to a fatigue test. These results are also compared with those of pull-out tests of the same bar and concrete.File in questo prodotto:
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