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Research Activities: 2003
Evaluation of Anchors for CFRP tendons
Matching Research Agency
|Natural Sciences and Engineering Research Council (NSERC)|
|Graduate research assistant will perform the verification tests for the anchor system.|
The objectives of the study are: (1) Fabricate mechanical wedge-type anchor systems for Aslan 200 CFRP rods; (2) Proof test the load carrying capacity of CFRP rods gripped with the anchor system.
Carbon FRP (CFRP) reinforcement is a very promising alternative material in prestressed concrete structures. Acceptance of CFRP tendons in post-tensioned concrete applications is inhibited by the lack of a suitable anchor system to maintain the prestressing force in the reinforcement. The experimental data and experience on mechanical behavior of prestressing steel tendons and anchorages are abundant but cannot be used when developing FRP tendon-anchorage systems. A new anchor system was designed and developed at the University of Waterloo. In this project, anchors are fabricated based on the Waterloo design. The performance of the anchor system will be evaluated under short-term static loading to evaluate the anchorage efficiency for the CFRP tendons.
The project will lead to the fabrication and assessment of the Waterloo anchor system for CFRP prestressed rods. The new anchors will be used for a laboratory and field application project in Rolla utilizing CFRP tendons.
Relationship to other Research/Projects
(1) Interfacial contact behavior of CFRP metal couples in Wedge anchor systems (PhD, Waterloo); (2) Externally prestressed beams with CFRP tendons, (PhD student Waterloo); (3) CFRP tendon anchor deviator systems (MASc Waterloo).
Technology Transfer Activities
|C3 Group and Vector Construction will be using the technology in Canada.|
Transportation Research Board Keywords
|FRP tendons, Anchoring Systems|