Tech Note 558b-1: Lateral Load Resisting Elements: Diaphragm Design Values
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.

 

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Tech Note L000-08: Changes from the 1997 UBC to the 2006 IBC for Lateral Design with Cold-Formed Steel Framing
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.

 

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Tech Note L001-10: Design of Diagonal Strap Bracing Lateral Force Resisting Systems for the 2006 IBC
Tech Note L001-10: Design of Diagonal Strap Bracing Lateral Force Resisting Systems for the 2006 IBC

Summary: This Technical Note is intended to discuss some of the design requirements, detailing and practical limitations of diagonal strap bracing design. Diagonal flat strap bracing is a commonly used type of lateral force resisting system in residential and low rise commercial cold-formed steel applications.

This Technical Note is an editorial revision of Technical Note L001-09.

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 L002-23: Strap Braced Wall: Loose Strap Considerations
Tech Note L002-23: Strap Braced Wall: Loose Strap Considerations

Summary: Strap braced walls are a common means of providing lateral stability for cold-formed steel load-bearing structures. Discussed in this technical note are causes of loose straps, potential stability implications as well as potential means of remediation.

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 L101-23: Design of Cold-Formed Steel Sheet and Wood Structural Panel Sheathed Shear Walls for Wind and Seismic Forces
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.

 

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Tech Note L200-09: Roof Framing Anchorage Forces: MWFRS or C&C
Tech Note L200-09: Roof Framing Anchorage Forces: MWFRS or C&C

Summary: This Technical Note defines the two levels of force and discusses the effects of using Component and Cladding (C&C) loads versus Main Wind Force Resisting System (MWFRS) calculated uplift loads. Design examples are provided to indicate the difference in roof-to-wall anchorage force for either type of load. Mainstream reference standards and quotes from field experts are cited when discussing the appropriate levels for calculating the uplift forces.

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 L202-24: Diaphragm Design with Pneumatically Driven Pins
Tech Note L202-24: Diaphragm Design with Pneumatically Driven Pins

This Tech Note Updates and Replaces Tech Note L202-12

Summary: Wood based panels for shear walls and horizontal diaphragms have traditionally been attached to cold-formed steel framing using self-drilling, tapping screws. With the introduction of pneumatic nailing systems, wood-based panels can now be fastened to steel in a manner similar to which panels have been nailed to wood framing in the past. Information on specifications, selection, and field inspection of pneumatic drive pins is contained in Technical Note F300-23, Pneumatically Driven Pins For Wood Based Panel Attachment. This Technical Note contains procedures for the design of floor and roof diaphragms over cold-formed steel framing using pneumatically driven pins.

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 L300-23: Design of End Posts for Diaphragm Shear Walls: A Perspective
Tech Note L300-23: Design of End Posts for Diaphragm Shear Walls: A Perspective

This Tech Note Updates and Replaces Tech Note L300-09

Summary: This Tech Note provides a rational engineering analysis that may replace assumptions that are commonly used and that may be overly conservative. The content of this Tech Note is based upon information in engineering literature, in particular Timoshenko & Gere, Theory of Elastic Stability and upon engineering judgment.

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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