A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of Reinforcement Ratio on Transverse Early-Age Cracking of GFRP-RC Bridge Deck Slabs
Because concrete bridge deck slabs are much longer in the traffic direction, they experience transverse early-age cracks due to volumetric instability and restraint. In the last decade, the use of the noncorrodible fiber-reinforced polymer (FRP) bars in concrete bridges has significantly increased. This paper presents the experimental results of four full-scale, cast-in-place glass FRP–reinforced concrete (GFRP-RC) deck slabs, subjected to early-age shrinkage. The slabs measured . The longitudinal reinforcement ratio (0.30, 0.50, 0.70, and 1.1%) was the main parameter investigated in this study. The test results were presented in terms of cracking pattern, width and spacing, strains in both GFRP bars, and concrete over a period of 90 days after casting. The experimental results were compared with provisions and predictions from a published analytical model. It was concluded that the published numbers can reliably provide a minimum reinforcement ratio for bridge deck slabs reinforced with GFRP bars. Also, the measured width of shrinkage cracks agreed with the results of the analytical model.
Effect of Reinforcement Ratio on Transverse Early-Age Cracking of GFRP-RC Bridge Deck Slabs
Because concrete bridge deck slabs are much longer in the traffic direction, they experience transverse early-age cracks due to volumetric instability and restraint. In the last decade, the use of the noncorrodible fiber-reinforced polymer (FRP) bars in concrete bridges has significantly increased. This paper presents the experimental results of four full-scale, cast-in-place glass FRP–reinforced concrete (GFRP-RC) deck slabs, subjected to early-age shrinkage. The slabs measured . The longitudinal reinforcement ratio (0.30, 0.50, 0.70, and 1.1%) was the main parameter investigated in this study. The test results were presented in terms of cracking pattern, width and spacing, strains in both GFRP bars, and concrete over a period of 90 days after casting. The experimental results were compared with provisions and predictions from a published analytical model. It was concluded that the published numbers can reliably provide a minimum reinforcement ratio for bridge deck slabs reinforced with GFRP bars. Also, the measured width of shrinkage cracks agreed with the results of the analytical model.
Effect of Reinforcement Ratio on Transverse Early-Age Cracking of GFRP-RC Bridge Deck Slabs
Ghatefar, Amir (author) / El-Salakawy, Ehab (author) / Bassuoni, M. T. (author)
2014-03-12
Article (Journal)
Electronic Resource
Unknown
Effect of Reinforcement Ratio on Transverse Early-Age Cracking of GFRP-RC Bridge Deck Slabs
| British Library Online Contents | 2014