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V1 Media, the publisher of Informed Infrastructure Magazine, is an approved AIA continuing-education provider. AIA-approved courses are a valid form of Learning Units (LU) and Professional Development Hours (PDH) for the Architecture, Engineering and Construction (AEC) industries via self-learning courses in all states.

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What Your Fabricator Wishes You Knew About HSS

Course Information

Content Provided By

Some engineers may be scared off from designing with Hollow Structural Sections (HSS) because they think—or have been led to believe—that HSS construction is too expensive. In actuality, HSS members can be very price-competitive with wide flange construction if the engineer keeps in mind certain things during design. The following information will give designers the knowledge to specify efficient HSS designs.


By Kim Olson, P.E., FORSE Consulting, Technical Consultant to the Steel Tube Institute

Learning Objectives

• Know which connections work best for HSS members—whether a simple shear connection, moment connection or truss connection

• Know which tolerances could affect HSS members during fabrication and erection

• Have a better understanding of AESS, including when it’s required and when it’s not

• Understand that “HSS members are more expensive than wide flange members” is not necessarily true


The Professional Development Series is a unique opportunity to earn continuing education credit by reading specially focused, sponsored articles in Informed Infrastructure. If you read the following article, display your understanding of the stated learning objectives, and follow the simple instructions, you can fulfill a portion of your continuing education requirements at no cost to you. This article also is available online at

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