However, the PCA has (as of 2023) not produced an interactive, equation-solving digital tool. That space is held by software like RAM Concept, ETABS, and ADAPT. The PCA Notes remains the pedagogical foundation upon which those tools are validated.
ACI 318-19 places a heavier emphasis on robustness to prevent progressive collapse, particularly in cast-in-place construction.
) for non-prestressed members. The code introduced a ( λslambda sub s
Create hyperlinked bookmarks in your PDF. Tag sections like "Shear friction," "Corbel design," or "Two-way shear" for instant access.
The PCA Notes mirror the organizational structure of ACI 318-19, allowing engineers to quickly cross-reference code clauses with explanatory text. The document is generally divided into several core technical areas: pca notes on aci 31819
: Summaries of what has changed between ACI 318-14 and ACI 318-19 to help practitioners adapt. American Cement Association Major Changes in ACI 318-19 Highlighted in Notes
If you own ACI 318-19, buy the PCA Notes. If you are a structural engineer and own neither, buy both—your stamp depends on it.
Higher steel grades reduce the total area of steel required, easing reinforcement congestion in heavily loaded members like columns and shear walls.
For structures located in moderate-to-high seismic risk zones, PCA Notes dedicate substantial sections to Chapters 18 (Earthquake-Resistant Structures) and 19 (Concrete: Design and Durability Requirements). However, the PCA has (as of 2023) not
Focus on how these updates impact a specific structural element, like or columns .
📘 Don’t just read the PCA Notes passively. Keep a copy next to ACI 318-19 and work through each design example manually. The commentary reveals common pitfalls and code interpretations that exam prep (like the SE or PE) often tests.
Tables, charts, and schematics that simplify complex equations.
If you are working on a specific design element, let me know if you would like me to detail the , outline the Grade 100 steel restrictions , or provide a comparison table of development lengths between the old and new codes. Share public link ACI 318-19 places a heavier emphasis on robustness
For the first time, shotcrete provisions are explicitly integrated into the main body of ACI 318-19 rather than being treated as a separate specialty item. The PCA Notes dedicate sections to explaining the material requirements, placement tolerances, and testing protocols unique to shotcrete. This includes guidance on core testing, evaluating reinforcement encapsulation, and understanding the responsibilities of the shotcrete inspector. 3. Strut-and-Tie Method (STM) Revisions
The notes clarify when to use this formula versus alternative methods that incorporate the longitudinal reinforcement ratio ( ρwrho sub w
The guidelines provide detailed procedures for calculating shear strength in two-way slabs, particularly for slabs with or without stirrups/headed shear stud reinforcement.