6/19/2025 - 3:20pm-4:15pm

The design of post-installed anchorage for reinforcing bars and steel fasteners has progressed significantly in the last 25-years. 10-years before the Boston Tunnel ceiling panel anchorage failure in 2006, FDOT had funded research and specification development for concrete anchors under both sustained and transient loads. A renewed national focus on anchorage design, qualification, and installation was born from that Boston Tunnel failure. More recently manufacturers have improved product options and performance, and access to technical guidance, training and certification is much improved and has helped inform updates to national building codes such as ACI CODE-318 and the AASHTO Bridge Design Specifications. This presentation will provide current state-of-the-practice for concrete anchor design and installation, highlighting many of the changes that have been implemented since 2006, focusing on adhesive-bonded, undercut and screw anchors.

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