Results 141 to 150 of about 301 (182)
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Concrete Beams Prestressed with CFRP Strands
Structural Engineering International, 1997The behaviour of prestressed concrete beams reinforced with CFRP (carbon fibre reinforced plastic) strands was investigated and compared to prestressed concrete elements using conventional steel.
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Assessment of Bond Behavior of UHPC and Prestressing Strands
Advanced Materials Research, 2014Ultra High Performance Concrete - UHPC is a relatively new type of composite material with outstanding features (high compressive strength, high tensile strength and high durability). Also the bond strength between steel reinforcement and UHPC is better than that in ordinary concrete. This fact needs to be quantified, because no standard prescribes the
David Citek +4 more
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Influence of cover on bond of strands prestressed by pretensioning
Canadian Journal of Civil Engineering, 2001Cover of prestressed tendons is an important factor that influences the transmission of prestress by bond. This paper describes a study of the influence of cover on the bond behaviour of prestressed pretensioned strands. Ten beams with different cover values were produced and tested.
Ricardo N.F. do Carmo +1 more
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Construction and Building Materials, 2016
Prestressing of strengthening materials can enhance the performance of strengthened structures as the materials become more efficient as a greater portion of their tensile capacity is employed. Prestressed concrete beams are widely used in the construction field, however, there is a lack of studies on the strengthening of these structural elements ...
Obaydullah, M. +5 more
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Prestressing of strengthening materials can enhance the performance of strengthened structures as the materials become more efficient as a greater portion of their tensile capacity is employed. Prestressed concrete beams are widely used in the construction field, however, there is a lack of studies on the strengthening of these structural elements ...
Obaydullah, M. +5 more
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Strand bond stress–slip relationship for prestressed concrete members at prestress release
Materials and Structures, 2015The transfer of prestress force from prestressing strands to the surrounding concrete is dependent on the bond between the two materials. Understanding the actual bond stress distribution along the transfer length results in optimized design of the transfer zone of prestressed concrete members.
Yaohua Deng +2 more
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Bond of prestressing strand to concrete
PCI Journal, 2021Andrew Osborn, Mike Lanier, Neil Hawkins
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Response of corroded prestressed beams with bonded strands
Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2012Deterioration of post-tensioned structures may take place as a consequence of severe environmental conditions or design or construction errors. This paper investigates analytically the effects of corrosion on the structural response of bonded post-tensioned beams.
Castel, Arnaud +2 more
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Reduced Strand Spacing in Pretensioned, Prestressed Members
ACI Structural Journal, 1994Pretensioned, prestressed concrete girders are used widely in bridge superstructures in the United States. Predominantly, 0.5-in. (12.7-mm)-diameter prestressing strand is used in these girders at a center-to-center spacing of 2 in. (50.8 mm). This corresponds to the four-strand-diameter center-to-center spacing, which is the American Concrete ...
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Development Length of Epoxy-Coated Prestressing Strand
ACI Materials Journal, 1990To provide corrosion protection in adverse environments, a 7-wire prestressing strand is coated with a grit-impregnated epoxy. The effect of the epoxy coating and grit on development length for 3 different sizes of prestressing strand was investigated. The development lengths of 3 different densities of grit were studied as well.
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Fatigue Properties of Prestressing Strand
PCI Journal, 1966R. F. Warner, C. L. Hulsbos
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