The project considers both the ambient and high temperature performance of post-tensioned structures (from material components to full structure behavior). Most research has focused on the concrete configuration although the timber configuration is also being considered now. It began by considering the mechanical characterization of prestressing steel in both ambient and high temperature. To date, the project has received over $325,000 from various funding bodies. This funding has largely come from NSERC Canada. Past industrial involvement has included Bridon Steel, ConForce. The project has accumulate in a book published by Springer, and recent work was presented atthe 2016 SIF conference in Princeton, New Jersey.