CSA S157-17/S157.1-17 PDF Download

The CSA S157-17/S157.1-17 standard, titled Strength Design in Aluminum / Commentary on CSA S157-17, is a comprehensive guide for the limit state design, fabrication, erection, and inspection of aluminum alloy members and assemblies. It is applicable for building applications and can be used for all types of aluminum load-bearing components.

The standard focuses on the ultimate limit state requirements, which define the maximum force that a component or assembly can withstand before collapse or uncontrolled deformation occurs. It provides design expressions based on the concept of limit states design to predict the nominal resistance of components and connections.

While this standard is primarily referenced by the National Building Code of Canada, it can be utilized in various engineering fields where known applied loads need to be supported. The standard does not specify serviceability limit states as they depend on the desired behavior under service loads for each specific application. For components used in buildings, reference is made to Commentary A of the National Building Code of Canada.

The standard includes a commentary, CSA S157.1, which is not mandatory but is essential for the implementation of the standard's requirements. It provides additional explanations, interpretations, and guidance for the proper use of the standard.

Significant changes have been introduced in this edition of CSA S157. It aligns the order of presentation with CSA S16 to facilitate the use of both standards. Some of the notable changes include a comprehensive list of symbols, new requirements for structural documents, an extended list of aluminum products conforming to ASTM specifications, elastic analyses now considering second-order effects and geometric imperfections, and provisions for the design of screws.

In addition, the standard includes provisions for fabrication, erection, inspection, testing, fatigue of aluminum, and design of composite beams. It is important to note that the development of this standard was made possible with the support of the Aluminum Association of Canada, Alubec, and the Centre québécois de recherche et de développement de l'aluminium.