Post-Installed Anchors – The Present State of the Industry
Formal concrete anchorage design provisions first appeared in ACI 318-02 as Appendix D, with applications limited to cast-in-place anchors and post-installed mechanical expansion anchors. The codified design provisions represented a generic approach to anchorage design, which diverged from past design practice of using manufacturers design tables; these tables may or may not have represented all characteristics associated with an anchor’s design capacity. In 12 years, we have codified anchorage design procedures and developed anchor qualification standards that have greatly raised the reliability bar for anchors used in practical design conditions. So, what is the state of the anchoring industry and where do the codes go from here?