Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Serviceability and Ultimate Load Behavior of Concrete Beams Reinforced with Basalt Fiber-Reinforced Polymer Bars
The flexural properties of eight 200 x 300 mm (8 x 12 in.) concrete beams reinforced with basalt fiber-reinforced polymer (BFRP) reinforcing bars were investigated. The beams were reinforced with four different sizes of BFRP (10, 13, 16, and 25 mm). The flexural reinforcement ratios ρf ranged from 1.43 to 10.70 times the balanced ratio ρfb. The beams were divided into three categories with low, moderate, and high ρf. As expected, all the beams failed by crushing of the concrete in the top compression fiber. Higher ρf/ρfb, to some extent, has a better effect on reducing the deflection than increasing the beam's ultimate strength. The strain compatibility equation per ACI 440.1R-06 was conservative in predicting the ultimate flexural strain in the BFRP bars and the ultimate moment capacity. The effective moment of inertia (I^sub e^) prediction model recommended by ACI 440.1R was the least conservative among other models when compared with the experimental I^sub e^.
Serviceability and Ultimate Load Behavior of Concrete Beams Reinforced with Basalt Fiber-Reinforced Polymer Bars
The flexural properties of eight 200 x 300 mm (8 x 12 in.) concrete beams reinforced with basalt fiber-reinforced polymer (BFRP) reinforcing bars were investigated. The beams were reinforced with four different sizes of BFRP (10, 13, 16, and 25 mm). The flexural reinforcement ratios ρf ranged from 1.43 to 10.70 times the balanced ratio ρfb. The beams were divided into three categories with low, moderate, and high ρf. As expected, all the beams failed by crushing of the concrete in the top compression fiber. Higher ρf/ρfb, to some extent, has a better effect on reducing the deflection than increasing the beam's ultimate strength. The strain compatibility equation per ACI 440.1R-06 was conservative in predicting the ultimate flexural strain in the BFRP bars and the ultimate moment capacity. The effective moment of inertia (I^sub e^) prediction model recommended by ACI 440.1R was the least conservative among other models when compared with the experimental I^sub e^.
Serviceability and Ultimate Load Behavior of Concrete Beams Reinforced with Basalt Fiber-Reinforced Polymer Bars
Ovitigala, by Thilan (Autor:in) / Ibrahim, Mustapha A / Issa, Mohsen A
ACI structural journal ; 113
2016
Aufsatz (Zeitschrift)
Englisch
Experimental testing of basalt-fiber-reinforced polymer bars in concrete beams
| British Library Online Contents | 2016