Anchorage Zone Reinforcement for Post-Tensioned Concrete Girders

摘要

This report contains the findings of a study that was performed to provideguidance for designing reinforcement for tendon anchorage zones of post-tensioned concrete bridge girders. The study included both analytical and experimental investigations, including 137 physical tests of anchorage applications. Both existing literature and the results of research conducted for this study were examined in an attempt to develop design and construction procedures for end and intermediate anchorage zones for post-tensioned concrete girders. The report provides a comprehensive description of the research, including a discussion of the state of the art, the finite element analyses performed, the physical experiments undertaken, and recommended revisions to the AASHTO Standard Specifications for Highway Bridges. The proposed revisions are intended to provide information on the safe and efficient design of reinforcement for tendon anchorage zones, and were adopted by the AASHTO Highway Subcommittee on Bridges and Structures in 1993.