AISI S100-2007 North American Specification for the Design of Cold-Formed Steel Structural Members. 2007 EDITION

The North American Specification for the Design of Cold-Formed Steel Structural Members, as its name implies, is intended for use throughout Canada, Mexico, and the United States.This Specification supersedes the 2001 edition of the North American Cold-Formed Steel Specification, the previous editions of the Specification for the Design of Cold-Formed Steel Structural Members published by the American Iron and Steel Institute, and the previous editions of CSA Standard S136, Cold Formed Steel Structural Members, published by the Canadian Standards Association.The Specification was developed by a joint effort of the American Iron and Steel Institute’s Committee on Specifications, the Canadian Standards Association’s Technical Committee on Cold Formed Steel Structural Members (S136), and Camara Nacional de la Industria del Hierro y del Acero (CANACERO) in Mexico. This effort was coordinated through the North American Specification Committee, which was made up of members from the AISI Committee on Specifications and CSA’s S136 Committee.This Specification provides an integrated treatment of Allowable Strength Design (ASD),Load and Resistance Factor Design (LRFD), and Limit States Design (LSD). This is
accomplished by including the appropriate resistance factors (φ) for use with LRFD and LSD and the appropriate safety factors (Ω) for use with ASD. It should be noted that the use of LSD is limited to Canada and the use of LRFD and ASD is limited to the United States and Mexico.The Specification also contains some terminology that is defined differently in Canada, the United States, and Mexico. These differences are set out in Section A1.3, “Definitions”.The Specification provides well-defined procedures for the design of load-carrying cold- formed steel members in buildings, as well as other applications, provided that proper allowances are made for dynamic effects.The provisions reflect the results of continuing
research to develop new and improved information on the structural behavior of cold-formed steel members. The success of these efforts is evident in the wide acceptance of the previous editions of the Specification developed by AISI and CSA.