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Determine the Residual Precompression Force for Diaphragm Design

by Bryan Allred, S.E.

November 8, 2023; 11:00 AM - 12:00 Noon Pacific Time (1 Hour)

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ICC Preferred Provider #1467
ICC Preferred Provider Course Number: 32561

Receive a 15% discount on any of our products when purchased with a seminar registration.

Seminar Description

The webinar will show what calculations are required to determine the residual precompression force from post-tensioning in a slab or beam system. This force can be used to resist diaphragm forces as mentioned in ACI 318 section and How to use the precompression force in chords and drags will also be covered.
The views and opinions expressed in this seminar are those of the speaker(s) and do not necessarily reflect those held by S. K. Ghosh Associates LLC.

Speaker Bio

Bryan Allred, S.E. is a licensed structural engineer who specializes in the design of reinforced concrete buildings utilizing post-tensioned floor systems. He is the co-author of the book “Post-Tensioned Concrete Principles and Practice” which covers the use post-tensioning in concrete structures from fundamentals to specific construction engineering and detailing. Bryan is a fellow of the Post-Tensioning Institute (PTI), a member of their Technical Advisory Board, Education Committee, Building Design Committee, and a member of committee 423 of the American Concrete Institute. He has also given numerous educational seminars/webinars across the country highlighting the application and benefits of post-tensioning.

Registration Information

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Early Registration
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Early Registration Discounted Fee* ($10 discount) $65 $130
Regular Fee $75 $150
Early Registration Discounted Fee* ($10 discount) $75 $150
Regular Fee $85 $170
* Registration on or before November 6, 2023

Please note a single registration allows you to have one connection. However, a number of people can view and listen to the seminar using one connection by using an LCD projector (or a large computer monitor) and good computer speakers or a speaker phone.

All attendees, irrespective of the number of registered connections, can earn 0.1 Continuing Education Units (CEUs) or 1.0 professional development hours (PDHs). CEU/PDH certificates are provided free of charge.

Small Business Registration

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Small Business Benefits and Eligibility


  • A connection is defined as a single web connection plus a single telephone connection (if necessary). If you want to sign up for more than one connection for this seminar, you will have the opportunity to do so after placing the seminar in your cart.
  • A $15 fee will apply if the seminar registrant wishes to revise the web seminar registration (e.g. switch from one web seminar to another).
  • Refunds are limited to 80 percent of fee and must be applied for in writing WITHIN THIRTY DAYS after the scheduled seminar.
  • We are a registered provider for continuing education in the State of Florida (Provider # 4732), the State of New York (Provider # 99), the State of New Jersey (Provider # 24GP00014200), the State of Maryland, and for the Structural Engineers Certification Board (SECB) of the National Council of Structural Engineers Associations (NCSEA).