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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
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
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 / Diagana, Cheikhna / Li, Alex
2015
Article (Journal)
English
Operating Procedures, Materials Treatment , Theoretical and Applied Mechanics , Shear ductility , Structural Mechanics , Shear transfer mechanism , Civil Engineering , Self-compacting concrete , Diagonal crack length , Prestressed reinforced concrete beam , Shear performance , Materials Science, general , Engineering , Building Materials
| British Library Online Contents | 2015