ACI 318-19 Changes to the Concrete Design Standard-Post-Tensioned

Video Transcription

Video Summary

The transcript discusses updates to the ACI 318-19 code concerning post-tensioning, focusing on relocated provisions for clarity, particularly on post-tension slab foundations on expansive soil for residential construction. Changes include reinforcing crack control requirements for unbonded tendons and detailing standards in Chapter 25 to prevent bearing failures at anchor zones. Additionally, Chapter 26 clarifies formwork design requirements, emphasizing the need for contractors to accommodate movement during post-tensioning, which affects slab and beam deformation. The revisions aim to enhance clarity, safety, and consistency in post-tensioning structural practices.

Keywords

ACI 318-19

post-tensioning

expansive soil

crack control

formwork design