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http://dx.doi.org/10.7734/COSEIK.2015.28.3.317

Ultimate Strength of Anchorage Zone according to Geometric Parameters of Post-Tensioning Anchorage using a Finite Element Method  

Kwon, Yangsu (Department of Civil and Environmental Engineering, KAIST)
Kim, Jin-Kook (Steel Solution Marketing Department, POSCO)
Kwak, Hyo-Gyoung (Department of Civil and Environmental Engineering, KAIST)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.3, 2015 , pp. 317-324 More about this Journal
Abstract
The design of anchorage zone in a post-tensioned member has been started from the evaluation of the ultimate resisting capacity as well as the maximum bursting stress developed, and a lot of design codes including AASHTO and PTI describe their design equations to determine the bearing strength of concrete at the anchorage zone. However, these equations usually give conservative results because their derivation is based on the simple anchorage with a wide bearing plate in the surface without any additional consideration for the load transfer mechanism through transverse ribs on the anchorage. To assess the influence of geometric parameters related to the transverse ribs on the resisting capacity of anchorage block, experiments and analysis are conducted. After verifying the validity of numerical model conducted through correlation studies between experimental and analytical results, parametric studies with changes in the transverse ribs are followed and design recommendations for the anchorage block are suggested from the numerical results obtained.
Keywords
prestressed concrete; post-tensionning anchorage; anchorage zone; ultimate strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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