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Tilt-Up Wall Design Provisions: Proper Application

by John Lawson, P.E., S.E.

February 22, 2024; 11:00 AM - 1:00 PM Pacific Time

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ICC Preferred Provider #1467
ICC Preferred Provider Course Number: 14923

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

Seminar Description

With over a half a billion square feet of space constructed annually, tilt-up concrete construction is a common building type in engineering offices across the nation. This economical style of construction is uniquely identified by the very slender concrete walls cast horizontally and tilted into place. This web-seminar presentation revisits the historical development of the original slender wall design recommendations in the late 1970s, and how the current slender wall design provisions in ACI match with concepts developed over 30 years ago. While these original concepts were based on empirical data from full-scale tests conducted in the early 1980s, only within the last ten years have we really begun to fully understand the behavior of these thin concrete members when subjected to combined axial load and large horizontal forces. The intent of the current code provisions will be discussed, some insight into their proper application will be provided, and examples of misapplications and gray-areas will be highlighted.

The web seminar will also include three question-and-answer periods.

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

John Lawson, S.E. is Professor in Architectural Engineering at California Polytechnic State University (Cal Poly), San Luis Obispo, and is a registered Civil and Structural Engineer with more than 25 years of design experience. His past design work includes over 100 million square feet of one-story rigid wall-flexible diaphragm buildings in high seismic zones. His research interests have been focused on this building inventory, and is a co-author of Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternate Procedure (FEMA P-1026).

Registration Information

1 Connection 2 Connections 3 Connections 4 Connections 5 Connections > 5 Connections
Early Registration
Discounted Fee*
$260 $460 $585 $640 $725 $130
per connection
Regular Fee $275 $490 $630 $700 $800 $145
per connection
* Registration on or before February 20, 2024

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 0.2 Continuing Education Units (CEUs) or 2.0 professional development hours (PDHs). CEU/PDH certificates are provided free of charge.

Small Business Registration

We provide discounted registration for small businesses. If you are not registered with us as a small business yet, please click below for more information.

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).