Continuing Education Credits Available – 1.5 PDH Credits
Cold-formed steel (CFS) framed floor systems used to be simple and straightforward: joists at 16” or 24” on center aligned over wall studs with the joists braced with blocking/strapping every few feet, all topped with plywood or pan deck and concrete. But now the rules have changed. With the advent of ledger framing and load distribution members and composite CFS floor systems, we are seeing true innovation in floor framing, as well as how floors are built/supported/topped. With new products being developed at a rapid pace, engineers have to keep up with the latest to select economical and lightweight systems that can now compete with the efficiencies of open-web bar joist and composite deck systems. This session will provide an overview of several CFS floor framing systems and methodologies that are starting to win back floor framing from other materials, and other potential efficiencies that can be gained from the inherent versatility and constructability of CFS floor framing.
After attending this presentation, participants will be able to:
- Design and detail joist and truss support systems that obviate alignment framing and provide more flexibility for field fixes and bearing wall openings.
- Evaluate a wide variety floor topping materials that provide joist bracing, diaphragm strength, and gravity load support.
- Consider options with wider spaced joists or trusses: using the span capabilities of steel deck or steel-and-concrete systems.
- Consider composite design with CFS and concrete systems: both deck and joists and combinations of these.
- Know where to go for additional resources on floor issues.
Presenter: Don Allen, P.E., Super Stud Building Products, Inc.
Don Allen, P.E. currently serves as Director of Engineering for Super Stud Building Products, Inc., where he oversees product development, testing, engineering, and technical services. Having worked in the cold-formed steel industry since 1990, Don served as a CFS specialty engineer, Engineer-of-Record, and industry representative before his current position with a stud manufacturer. He concurrently served for more than nine years as Technical Director for three associations in the cold-formed steel industry ─ the Steel Stud Manufacturers Association (SSMA), the Steel Framing Alliance (SFA), and the Cold-Formed Steel Engineers Institute (CFSEI). He chairs the Education Subcommittee of the American Iron and Steel Institute’s Committee on Framing Standards and Committee on Specifications, and was the recipient of the 2013 CFSEI Distinguished Service Award. He has given presentations on CFS in China, Colombia, Egypt, Hawaii, and South Africa, and has been involved in design projects in North America, Africa, and Europe.