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Design Wall Thickness Requirements for Hollow Structural Sections

Design Wall Thickness Requirements for Hollow Structural Sections

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Please note that this recording is from an earlier date.

Webinar  - 0.075 CEU

Duration: 55 m

Presented by Dr. Kyle Tousignant, P.Eng

In Canada, the design wall thickness for ASTM A500 hollow structural section (HSS) is currently taken as 0.90 times the nominal wall thickness, which differs from the value of 0.93 used by the American Institute of Steel Construction (AISC) in the United States. This creates a cognitive barrier, leads to confusion, and impacts the viability of some members.

This session investigates the Canadian design wall thickness requirement for ASTM A500 HSS using modern dimensional data from producer quality control records. The data, obtained from seven HSS producers in North America, is analyzed to compute bias factors and coefficients of variation for wall thickness, outer dimension(s), cross-sectional area, moments of inertia, radii of gyration, and section moduli. A first-order reliability method analysis is then performed for HSS members subjected to compression, tension, and bending. The results support an upward revision of the ASTM A500 HSS design wall thickness in Canada, from 0.90 to 0.93 times the nominal wall thickness.

Eligibility for CEUs

CEUs will be issued for this webinar to participants that meet the following criteria:

  1. Participant must attend at least 75% of the webinar
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Notes

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