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- Title
Bond-Slip-Strain Relationship in Transfer Zone of Pretensioned Concrete Elements.
- Authors
Ho Park; Jae-Yeol Cho
- Abstract
In this paper, a novel bond-slip-strain relationship for a strand in the transfer zone of a pretensioned concrete member is presented. To draw a relationship among the bond stress, strand strain, and slip along the transfer zone, pretensioned, prestressed concrete members were fabricated, and strand strains were measured from electrical resistance steel gauges attached on the strand during prestressing force release. The test variables were the compressive strength of the concrete, the size of the cross section, the cover thickness, the diameter of the strand, the curing method, and the debonded region. Estimates obtained from the proposed model were in good agreement with the test results from other studies, as well as those from this work. Using the advantage of the strain term in the proposed formulation, the applicability of the derived model to fiber-reinforced polymer tendons was also evaluated.
- Subjects
PRESTRESSED concrete; STRESS measurement (Mechanics); POLYMER research; FIBROUS composites; STEEL fatigue
- Publication
ACI Structural Journal, 2014, Vol 111, Issue 3, p503
- ISSN
0889-3241
- Publication type
Article
- DOI
10.14359/51686567