Tech Note B009-20: Structural Versus Nonstructural Cold-Formed Steel Framing
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Summary: This Tech Note defines structural and non-structural cold-formed steel framing. It lists code definitions that can be used to categorize framing in question.
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 G102-09: Designing Cold-Formed Steel using the Direct Strength Method
Summary: The Direct Strength Method is an entirely new design method for cold-formed steel. The Direct Strength Method requires no effective width calculations, eliminates tedious iterations to determine section properties, properly includes interaction effects between elements of the cross-section such as the flange and the web, and opens up the potential to create new sections as it is applicable to nearly any shape that can be formed from cold-formed steel, as opposed to just C, Z and hat shapes. The Direct Strength Method was first adopted in 2004 as Appendix 1 to the North American Specification for the Design of Cold-Formed Steel Structural Members, and the most recent version can be found in the recently published AISI-S100-07. This CFSEI Technical Note introduces the Direct Strength Method and details some of the features of a recently published AISI Design Guide for this Method. The intent of this Tech Note and the Guide is to provide engineers with practical guidance in the application of this new design method.
Note: This document was originally published as G100-09, Corrected to G102-09 in April 2011
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 B010-21: Introduction to AISI S202, Code of Standard Practice for Cold-Formed Steel Structural Framing
Summary: Understanding the responsibilities of the different parties involved in a cold-formed steel framing project can be confusing. This Technical Note is an introduction to AISI S202, Code of Standard Practice for Cold-Formed Steel Structural Framing published by the American Iron and Steel Institute (AISI).
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 S200-20: Design of Cold-Formed Steel Systems for Raised Platforms, Stages and Theater Seating
Summary: It is common for cold-formed steel (CFS) to be used in the construction of raised platforms, stages, and theater seating. It is the intent of the Technical Note to provide an overview of considerations to address when designing such framing, along with some design examples.
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 B008-20: Basic C-Shaped Wall Stud Behavior
Summary: Although cold-formed steel framing shares some limit states with hot-rolled steel, cold-formed steel framing and specifically C-Shaped studs exhibit unique behaviors when subjected to various loading conditions. This Tech Note gives an overview of those unique behaviors that need to be considered when designing C-Shaped cold-formed steel members.
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 B004-20: Introduction to Cold-Formed Steel Framing Standards
Summary: The AISI Committee on Framing Standards was established in 1998 with a mission to eliminate regulatory barriers and increase the reliability and cost competitiveness of cold-formed steel framing in residential and light commercial building construction through improved design and installation standards. This Tech Note summarizes the efforts and work products of the Committee.
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 G103-11a: Tabulated Local And Distortional Elastic Buckling Solutions For Standard Shapes
Summary: This note provides elastic buckling moments and forces for local and distortional buckling of typical standard sections such as those in the AISI S201 Standard for Cold-Formed Steel Framing—Product Data and the Steel Stud Manufacturers Association (SSMA) Product Technical Information Catalog. These tabulated values allow designers to quickly examine and evaluate the use of the direct strength method (DSM) for design. Note that basic information on DSM is discussed in CFSEI Technical Note G102.
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 B006-20: Introduction to Evaluation Services and Explanation of Evaluation Reports
Summary: Evaluation reports act as a bridge between authorities having jurisdiction (AHJs) and manufacturers in conveying specific information on building products and systems relative to compliance to codes and standards. When an evaluation report is made available and determined as supporting the product’s use in projects, approval of the code official should be solicited. After such approval is attained, the design and installation details given in the report need to be observed and the labeling of the actual product needs to match the description provided in the evaluation report.
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 B003-20: Introduction to Building Codes
Summary: The International Code Council develops a suite of building codes that are considered nationally to be the model codes for the building industry. Local jurisdictions adopt, and in some cases amend, the codes and they become the law of the jurisdiction for building design and construction. The adopted building codes are intended to provide minimum requirements to provide a safe building environment. Among other requirements, the code dictates the maximum allowable size of a building based on its intended use, materials used in construction, fire resistance rating of structural elements, and the presence of automatic sprinkler systems. The International Building Code establishes all design loads to be applied to the building or structure. The building code also relies on references to other standards and specifications to ensure the provisions reflect the current industry practice. For cold-formed steel framing, the IBC references the American Iron and Steel Institute’s suite of framing standards as the accepted design methods and procedures.
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.