A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shear Capacity Assessment of Posttensioned Concrete Girders Strengthened with CFRP Materials
Abstract This paper shows a case of the existing prestressed concrete bridge girders, which due to an increase in the service load needed flexural and shear upgrading with prestressed CFRP laminates. A flexural strengthening of the bridge girders with two pre-tensioned CFRP laminates was published and it is not discussed in this paper. An analysis of the design shear resistance of the original bridge girders performed based on the Polish code and Eurocode indicated the lower shear strength than the design shear force for increased service load. Based on this analysis the girders were strengthened in shear with CFRP sheets wrapping. The mechanical model by Mari et al. (2016) considering the concrete shear contribution and the flange effect on the shear strength indicated promising results. According to the model the design shear resistance of the original girder was in fact much higher than the maximum expected shear force.
Shear Capacity Assessment of Posttensioned Concrete Girders Strengthened with CFRP Materials
Abstract This paper shows a case of the existing prestressed concrete bridge girders, which due to an increase in the service load needed flexural and shear upgrading with prestressed CFRP laminates. A flexural strengthening of the bridge girders with two pre-tensioned CFRP laminates was published and it is not discussed in this paper. An analysis of the design shear resistance of the original bridge girders performed based on the Polish code and Eurocode indicated the lower shear strength than the design shear force for increased service load. Based on this analysis the girders were strengthened in shear with CFRP sheets wrapping. The mechanical model by Mari et al. (2016) considering the concrete shear contribution and the flange effect on the shear strength indicated promising results. According to the model the design shear resistance of the original girder was in fact much higher than the maximum expected shear force.
Shear Capacity Assessment of Posttensioned Concrete Girders Strengthened with CFRP Materials
Kotynia, Renata (author) / Staśkiewicz, Michal (author) / Michels, Julien (author) / Czaderski, Christoph (author) / Motavalli, Masoud (author)
2017-08-06
9 pages
Article/Chapter (Book)
Electronic Resource
English
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