Tech Note B001-20: How Cold-Formed Steel Framing is Produced
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Summary: Cold-formed steel seems like a fairly simple product when you are holding it in your hand, but as you can see, there are many production steps involving things like mining iron ore out of the ground, creating molten steel, furnaces above 2,000°F, reduction mills imparting forces in excess of 100,000 pounds per square inch, and hydrochloric acid cleaning baths before it even reaches the roll forming stage. This Tech Note has provided a basic outline of the processes involved in producing the products you work with daily, be it manufacturing, drafting, designing, engineering, installing or demolishing a building at the end of its life cycle.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
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Tech Note G801-13: ASTM A1003 – No Cause for Rejection
Summary: Building codes and design standards that reference ASTM International (ASTM) A1003 standard for cold-formed steel framing products have the potential to cause confusion and project delays for those who are unfamiliar with the requirements of this new material standard. This Technical Note, first published in 2008, provides a comparison of the requirements of A1003 with the more familiar standards traditionally used for cold-formed steel framing products, and demonstrates that steel ordered or furnished to the old standards should be no cause for rejection. The 2013 revision references a change to the requirements of ASTM A1003 regarding material thickness when ordering or supplying steel sheet.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note G200-21: Chase the Loads: Load Path Considerations for Cold-Formed Steel Light-Frame Construction
This Technical Note updates and replaces CFSEI Technical Note G200-15
Summary: Engineering students are admonished to “chase the loads” in their structural analysis and design courses. A “load path” is the direction in which each consecutive load will pass through framing members and the connected members of a framing assembly. The load path sequence begins at the point of load application, both vertical (gravity, wind uplift or seismic vertical) and lateral, on the structure and works all the way down to the footing or foundation system, ultimately transferring the load of the structure to the foundation. This Tech Note provides insight into the load path considerations for cold-formed steel framing.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note F501-11: Cold-Formed Steel Truss To Bearing Connections
Summary: This Technical Note is intended as general educational information and to highlight what the building designer should be aware of with regard to truss to bearing connections. Topics addressed include what loads due to wind truss to bearing connections may have to resist, who is ultimately responsible for truss to bearing connection design, general guidance on the design of truss to bearing connections, and an illustrative design example. Loads due to seismic forces are not addressed in this Technical Note.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note G105-22: Compression Member Reinforcement
Summary: To modify the capacity of a compression member, e.g. wall stud or truss web, adding a reinforcement may result in a non-prismatic member. This Tech Note provides guidance to evaluate the strength of a non-prismatic compression member.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note B005-20: Introduction to Cold-Formed Steel Framing Design Aids
Summary: Both steel industry and manufacturers’ associations provide design aids that assist engineers with the proper application of the cold-formed steel design challenges. Design examples and design aids are essential to educate an engineer in the proper use and design of cold-formed steel members, connections and assemblies. This Tech Note provides an overview of some of the available cold-formed steel framing design aids.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note 558b-1: Lateral Load Resisting Elements: Diaphragm Design Values
Archived with cover page Nov. 2011
Summary: This note was archived November, 2011. The author has developed ASD design tables using an analytical method for wood framing based on the provisions of the 1991 edition of the AFPA National Design Specification for Wood Construction. Additional research is needed to bring the data in line with current codes and standards. The data below is from commentary section D2.1 of American Iron and Steel Institute AISI 213, Standard for Cold-Formed Steel Framing – Lateral Design.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note L000-08: Changes from the 1997 UBC to the 2006 IBC for Lateral Design with Cold-Formed Steel Framing
Summary: The intent of this document is to highlight the changes to the cold-formed steel framing lateral design provisions in the 2006 International Building Code, which has adopted the AISI 2004 Standard for Cold-Formed Steel Framing – Lateral Design, in comparison to the cold-formed steel framing lateral provisions in the 1997 Uniform Building Code.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note W102-21: Introduction to Curtain Wall Design using Cold-Formed Steel
Summary: A curtain wall can be defined as a non-vertically loaded exterior wall (aside for self-weight) support by the primary structural frame of the building. When it comes to cold-formed steel framing, this definition can encompass a great many possible assemblies and applications. This Technical Note discusses the various structural elements of a curtain wall system, and introduces the subjects of design loads and framing analysis.
This Technical Note updates and replaces CFSEI Tech Note W102-12
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.