Title:
Epoxy Socketed Anchors for Nonmetallic Prestressing Tendons
Author(s):
Lars E. Holte, Charles W. Dolan, and Richard J. Schmidt
Publication:
Symposium Paper
Volume:
138
Issue:
Appears on pages(s):
381-400
Keywords:
anchors (fasteners); epoxy reins; fiber reinforced plastics; finite element method; prestressing steels; shear stress; Structural Research
DOI:
10.14359/3931
Date:
9/1/1993
Abstract:
Finite element analyses and experimental confirmation tests were conducted to evaluate epoxy-socketed anchors for fiber reinforced plastic prestressing tendons. The studies disclosed that a parabolically varying profile provides superior performance compared to a conventional linear conic anchor. It was also found that an anchor with a bond release agent on the surface between the socket and resin plug results in a lower peak shear stress compared to a bonded anchor. The combination of a parabolic anchor and bond release agent permits use of a wider range of resins as socketing agents and is less sensitive to construction tolerances. Additional research is suggested to optimize material selection, anchor geometry, and anchor construction.