ACI 318-19 Changes to the Concrete Design Standard-Slabs

Video Transcription

Video Summary

The video discusses changes in the structural code, specifically the reorganization to a member-based approach for designing structural elements, such as one-way and two-way slabs. This approach helps avoid missed provisions and unclear applications by ensuring that the structural integrity reinforcement is properly implemented to prevent disproportionate collapses. The focus is on detailing rather than analysis for integrity provisions. For one-way slabs, key changes include the requirement for continuous reinforcement amounting to 25% of maximum positive moment reinforcement and detailed splicing guidelines. The video also covers updates in the 318-19 code, such as changes to high-strength reinforcement usage, minimum flexural reinforcement, and the removal of textbook-like content, like the direct design and equivalent frame methods. Adjustments for two-way slabs include minimum reinforcement requirements for serviceability and specific changes for thick transfer slabs to ensure structural safety.

Keywords

structural code changes

member-based design

one-way slabs

two-way slabs

318-19 code updates