February 9th 2021 Webinar

February 9, 2021 Webinar:

“HSS Truss Connections: The T’s, Y’s, & K’s of It All”


Presented by Brad Fletcher, S.E.

Senior Sales Engineer - Atlas Tube


Receive (1.0) PDH

12Noon - 1PM EST

WEBINAR PLATFORM: Zoom

Presentation Topic:

Trusses are one of the more common uses of Hollow Structural Sections (HSS). The joints and connections of HSS members in trusses can be the cause of confusion during design and of unneeded costs during fabrication. It is important to understand the various joint configurations and how they relate to the overall strength and stiffness of a truss. Fabrication cost, which is a primary cost of steel structures, can be greatly influenced by the joint and connection design, more so than the overall weight of the truss. The choice of member shapes, the configuration of the joints and choice of weld type has direct impact on the limit states that need to be checked and on the cost of fabrication. This presentation will highlight how to avoid some of the common pitfalls when designing and detailing HSS truss connections and joints. Through some simple rules of thumb, it will be shown that proper sizing of truss members and proper design of truss joints and connections can lead to a much more cost effective and efficient structure.

Learning Objectives:

  • Identify ways that HSS truss joint configurations relate to the overall strength and stiffness of the truss.

  • Understand the different limit states that control the design of different joint configurations.

  • Understand that fabrication cost of an HSS truss is directly related to the design of the truss joints and connections, rather than the overall weight of the truss.

  • Apply concepts used for planar trusses to the analysis and design of multi-planar trusses

Speaker Biography:

Brad Fletcher has 29 years of experience in engineering design and the steel industry, providing technical expertise on the use of steel hollows structural sections (HSS) and pipe piling products to design engineers, detailers, fabricators, and architects.

Brad is a registered structural engineer in Illinois, and has held senior positions at leading architecture and engineers firms: Skidmore, Owings & Merrill, Sargent & Lundy, and Halvorson & Partners. For the past 13 years at Atlas Steel, Brad has focused his efforts on serving as a liaison between structural designers and the steel industry.

Brad holds a Bachelor of Science and a Master of Science in Ciivl Engineering from Purdue University. He is active in many industry groups, including AISC, the Structural Engineers Association of Illinois, and ASTM International. He participates in Technical Committees responsible for the AISC Specification as well of the HSS committee of the Steel Tube Institute. Brad is also on the board of the CISC Research and Education Council (formerly SSEF) in Canada and the S16 Technical Committee for the Canadian Standards Association.