Description
Dr. Tousignant’s two-part webinar series will discuss the practical impacts of design requirements for hollow structural section (HSS) members and connections. In the first session, he will discuss how HSS production standards drive key code requirements for the design wall thickness, and research that sought to harmonize the properties used in Canada and the US. The second session will address a clear limitation in AISC 360 that hinders the design of bolted HSS column splices. New research will be discussed that points to a solution.
The registration fee for the series is $250 for members ($300 for nonmembers), which includes 2 hours of education. Each individual webinar can be purchased separately for $195 for members ($250 for nonmembers).
- Purchase both webinars in the Seminar and have access to the recordings for 1 Year.
- Each seminar purchase is per office location. If your firm is operating remotely, please review the Webinar FAQ’s on how to accommodate multiple users from the same location.
- Each webinar is 60 minutes long (1.0 PDH’s), and is from 12pm – 1pm CT.
Please note: These webinars are not included in the NCSEA Webinar Subscription.
Schedule of Events:
January 20th, 2026 – Day 1:
HSS Design Wall Thickness Requirements, Presented by Dr. Kyle Tousignant, Ph.D., P.E.
The design wall thickness for ASTM A500 hollow structural section (HSS) is currently taken as 0.93 times the nominal wall thickness, as set by the American Institute of Steel Construction (AISC) in the United States; however, in Canada, the factor used is 0.90. This creates a cognitive barrier, leads to confusion, and impacts the viability of some members. In this session, Dr. Tousignant will investigate design wall thickness requirement for ASTM A500 HSS using modern dimensional data from producer quality control records
January 27th, 2026 – Day 2:
Bolted HSS Column Splices, Presented by Dr. Kyle Tousignant, Ph.D., P.E.
This webinar will feature a case study that highlights a common challenge faced by designers of bolted HSS column splices in the US. First, the AISC 341 requirements for column splices in moment resisting frames (MRFs) will be reviewed; then, the common design procedure (in accordance with AISC 360) will be demonstrated; and, finally, a key limitation will be brought to light. Dr. Tousignant will give his perspective on this limitation and demonstrate how new research form Dalhousie University could provide a solution.
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