Tech Note W104-23: Top Track Load Distribution Members
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This Tech Note Updates and Replaces Tech Note W104-10
Summary: When in-line framing is not adopted as the structural framing scheme, the top track must be relied upon to provide load distribution. This Technical Note explores design issues and provides design guidance for some of the typical top track load distribution members and systems.
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 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 W600-21: Cold-Formed Steel Load-Bearing Wall Design
Summary: This Technical Note has been written to help cold-formed steel (CFS) engineers further their understanding of structural load-bearing CFS walls. Given the myriad of details required for such structures, the importance of proper design and analysis of load-bearing CFS members cannot be understated. This Technical Note will discuss the various design considerations that must be taken into consideration during the design phase of such structures.
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 L101-23: Design of Cold-Formed Steel Sheet and Wood Structural Panel Sheathed Shear Walls for Wind and Seismic Forces
Summary: This Technical Note provides an overview of low seismic and wind-controlled steel sheet and wood structural panel sheathed cold-formed steel (CFS) framed shear wall designs. It is a digest of the AISI D113-19, Cold-Formed Steel Shear Wall Design Guide and presents a more basic overview of design considerations. Sample shear wall capacity and loading comparisons are provided. For detailed design examples, refer to the AISI D113-19.
Code references are limited to AISI S240-15, North American Standard for Cold-Formed Steel Structural Framing; more detailed references, including AISI S400-15, North American Standard for Seismic Design of Cold-Formed Steel Structural Systems for high seismic design requirements can be found in the AISI D113-19.
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 D100-23: Corrosion Protection of Fasteners
This Tech Note Updates and Replaces Tech Note D100-13
Summary: Moisture, airborne chemicals and pollutants can all combine to reduce the life of ferrous fasteners through corrosion. This Technical Note examines the corrosion process, available fastener finishes, methods of measuring corrosion and the relative durability of fastener finishes.
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 FC101-22: Design of Cold-Formed Steel Rim Track
Summary: Cold-formed steel floor, roof, soffit, and ceiling joists are widely used in commercial applications. End of the joist rim track is an important component of many floor/roof/ceiling/soffit systems used to transfer load from the joist to another component of the structure. This Technical Note provides an overview of different rim track applications and how each is designed.
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 F100-23: Design of Clip Angle Bearing Stiffeners
Summary: Clip angles are commonly used in cold-formed steel constructions to attach floor joists to the rim track. Clip angles can also work as bearing stiffeners to reinforce the web crippling strength of the floor joists at the bearing locations. As the length of the clip angle may significantly influence the floor joist web crippling strength, it is critical to ensure the minimum length of the clip angle in 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 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 F102-21: Screw Fastener Selection For Cold-Formed Steel Frame Construction
This Technical Note updates and replaces CFSEI Tech Note F102-11
Summary: Specifying the proper fastener is necessary to assure the proper performance of the connections used in cold-formed steel construction. Cold-formed steel connections primarily utilize externally threaded fasteners, so embedment is not the controlling parameter. Instead, the design of the fastener along with the thickness of the steel govern the value of the connection. This Tech Note provides basic information for determining the appropriate screw type for various applications.
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.