Webinar: The New ACI-PTI 320-25 Code-Webinar: The New ACI-PTI 320-25 Code

Video Transcription

Video Summary

The Post-Tensioning Institute's webinar, moderated by Kyle Boyd, focused on the newly released ACI PTI Joint 320-25 code, a significant advancement in post-tensioning design within the industry. Key speakers, Carol Hayek and Don Kline, both heavily involved in the development of this code, presented its implications and content. The 320-25 code builds upon ACI 318, providing additional guidelines specific to post-tension concrete, and it's structured similarly to 318 to enhance usability for engineers.<br /><br />The code, which took five years to develop, addresses areas like dual-banded tendon layouts, increasing flexibility for designers, and reducing construction costs. It also allows for the use of headed shear reinforcement as backup in anchorage zones, optimizing the design process further.<br /><br />The webinar explored the overall strategy and coordination between ACI and PTI, emphasizing the importance of consensus and collaboration. The new standards are online, available on the ACI Plus platform, and soon in hard copy, marking a substantial shift towards better integration and specific focus within engineering codes.<br /><br />Future endeavors include a continuous cycle of updates (next in 2028, then 2031) to incorporate more practical changes. The webinar also pointed to future sessions covering related topics, such as slab-on-ground post-tensioning and barrier cables, ensuring a comprehensive understanding of the code's applications and future innovations. The PTI Academy and available publications provide further resources for detailed exploration.

Keywords

Post-Tensioning Institute

ACI PTI Joint 320-25 code

post-tensioning design

Kyle Boyd

Carol Hayek

Don Kline

dual-banded tendon layouts

headed shear reinforcement

ACI Plus platform

PTI Academy