While the official PCA Notes for ACI 318-14 are typically paid publications, several related official and academic resources are available online:
Helps users adapt to the member-based layout of ACI 318-14, which groups all design and detailing requirements for specific structural systems (like columns or walls) into individual chapters. pca notes on aci 31814 pdf link
Offers background discussions on the research and history that shaped the code's requirements. Accessing ACI 318-14 and PCA Resources While the official PCA Notes for ACI 318-14
You can purchase and download the ACI 318-14 Code and Commentary directly from the American Concrete Institute (ACI) . pca notes on aci 31814 pdf link
The ACI 318-14 edition introduced several critical updates that the PCA Notes help explain: