| This thesis presents results of an experimental and theoretical investigation into the stressing and seating of the Calgary anchor when used with Leadline CFRP tendons. The development of a model for the Calgary anchor using thick cylinder theory is presented. Based on the comparisons made with ANSYS Version 5.3 finite element software, the thick cylinder model is shown to provide a satisfactory prediction of the behaviour of the Calgary anchor. Three stressing methods developed at Queen's University, along with a system devised at Concordia University, are presented. The Queen's methods are based on the concept of utilizing the tendon prestress to force the wedges into the barrel and seat the anchor. One of the three methods is seen to be superior, in that it would be the most efficient and practical for implementation in field applications. Results from tests to determine wedge displacement in the Calgary anchor under seating loads up to 100 kN and the average load required to dislodge the wedges from the barrel following seating are presented. |
