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A platform for research: civil engineering, architecture and urbanism
Experimental investigation on the shear performance of prestressed self-compacting concrete beams without stirrups
Abstract In this work, eight prestressed reinforced self-compacting concrete (SCC) beams were tested in order to investigate the shear stresses transfer mechanism, the shear failure mode and the shear performance of prestressed SCC beams without stirrups. The principal parameters included concrete compressive strength, longitudinal tensile reinforcement ratio ρ l and prestressing force. The results indicated that the shear resistance corresponding to the first flexure-shear crack increases with the amount of longitudinal tensile reinforcement and the prestressing force. The ultimate shear resistance V u increases with the increase of the concrete compressive strength. V u increases also with ρ l and the prestressing force. The failure mode of the tested beams is similar to a reinforced normal concrete beams without stirrups, namely diagonal compression failure. The diagonal crack location was analyzed in this work and the values obtained are acceptable in comparison with the test data. The shear transfer mechanism can be explained by an arch system. The predictions provided by ACI and Eurocode were compared with those obtained by the experimental test.
Experimental investigation on the shear performance of prestressed self-compacting concrete beams without stirrups
Abstract In this work, eight prestressed reinforced self-compacting concrete (SCC) beams were tested in order to investigate the shear stresses transfer mechanism, the shear failure mode and the shear performance of prestressed SCC beams without stirrups. The principal parameters included concrete compressive strength, longitudinal tensile reinforcement ratio ρ l and prestressing force. The results indicated that the shear resistance corresponding to the first flexure-shear crack increases with the amount of longitudinal tensile reinforcement and the prestressing force. The ultimate shear resistance V u increases with the increase of the concrete compressive strength. V u increases also with ρ l and the prestressing force. The failure mode of the tested beams is similar to a reinforced normal concrete beams without stirrups, namely diagonal compression failure. The diagonal crack location was analyzed in this work and the values obtained are acceptable in comparison with the test data. The shear transfer mechanism can be explained by an arch system. The predictions provided by ACI and Eurocode were compared with those obtained by the experimental test.
Experimental investigation on the shear performance of prestressed self-compacting concrete beams without stirrups
Shen, Jie (author) / Yurtdas, Ismail (author) / Diagana, Cheikhna (author) / Li, Alex (author)
Materials and Structures ; 48 ; 1291-1302
2013-12-29
12 pages
Article (Journal)
Electronic Resource
English
Shear performance , Shear transfer mechanism , Prestressed reinforced concrete beam , Self-compacting concrete , Diagonal crack length , Shear ductility Engineering , Structural Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials
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