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http://dx.doi.org/10.7734/COSEIK.2012.25.2.163

Nonlinear Analysis of Anchor Head for High Strength Steel Strand  

Noh, Myung-Hyun ((재)포항산업과학연구원 강구조연구소)
Seong, Taek-Ryong ((재)포항산업과학연구원 강구조연구소)
Kim, Jin-Kook ((재)포항산업과학연구원 강구조연구소)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.25, no.2, 2012 , pp. 163-173 More about this Journal
Abstract
This study covers the nonlinear analysis of anchor head for high strength prestressing strand and presents necessary process in improving the performance of anchor head. The surface of wedge for strand is contacted to the surface of the wedge hole on anchor head when it is fitted into the wedge hole, and the contact condition changes according to the level of load applied through the wedge. In order to analyze detailed behavior, nonlinear material model and contact element were used in analysis. It was found from the analysis that the behavior of anchor head is affected by the interaction with the wedge contacted so that the wedge in FE model should have the same figure as the actual object. Circular array of wedge hole presents better stress distribution than layer array even though the small difference in maximum deformation. Increment of thickness of anchor head and distance of wedge hole also improve the performance of anchor head.
Keywords
high strength steel strand; anchor head; wedge; array of wedge hole; thickness of anchor head;
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Times Cited By KSCI : 1  (Citation Analysis)
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