The slender wall design provisions in ACI 318 Section 11.8 are used for the vast majority of tilt-up wall designs. However, they are presented as an “alternate” design method and can often be somewhat of an enigma to new or even experienced designers. This presentation will go behind the provisions, touching on historical background, calculation basis, pitfalls, best practices and recent literature applicable to tilt-up/slender wall design and tilt-up buildings in general.
About Trent Nagele
Trent Nagele is a Structural Engineer and Senior Principal with VLMK Engineering + Design. He is one of the primary authors and contributors to ACI 551 Committee’s recently published PRC-551.3-21 Tech Note, CI’s “Tilt-up Design Pitfalls” article and is currently helping edit the 551.R2 Design Guide updates. Trent has an MS degree in structural engineering and 30 years of design practice experience with a broad range of project and construction types. He has been part of the review committee for several tilt-up documents including FEMA P1026, and the Tilt-up Concrete Association’s Engineering Tilt-up and Limit Design of Tilt-up publications.