Cold-formed steel is widely used for buildings, automobiles, equipment, home and office furniture, utility poles, storage racks, grain bins, highway products, drainage facilities, and bridges. Its popularity can be attributed to ease of mass production and prefabrication, uniform quality, lightweight designs, economy in transportation and handling, and quick and simple erection or installation.
Cold-formed steel has significant market share because of its advantages over other construction materials, as well as the synergy of industry partnerships that promote cold-formed steel research and products. This includes codes and standards development that is spearheaded by the American Iron and Steel Institute. AISI's codes and standards work is conducted under the auspices of SMDI's Construction Market program.
Overview of Cold-Formed Steel Applications in Building Construction - A helpful and informative resource on the history and applications for cold-formed steel in building construction. It also introduces organizations that play important roles in the cold-formed steel industry.
Direct Strength Design - This paper provides a review of the Direct Strength Method for cold-formed steel design, which was formally adopted in North American design specifications in 2004 as an alternative to the traditional Effective Width Method.
Cold-Formed Steel Design Tools - Several cold-formed steel standards, design guides and manuals are available as free downloads from this site (see navigation bar at left). AISI also offers an extensive array of resources available for purchase from its online store (click here).
Cold-Formed Steel Design Seismic Testing (Summer 2013) - A partnership of leading cold-formed steel design researchers and design professionals from the steel industry completed the final phase of a three-year research project to increase the seismic safety of buildings that use lightweight cold-formed steel for their primary beams and columns. Two phases of testing occurred in June and July 2013. Phase One testing involved the structural components, including the cold-formed steel skeleton and the OSB sheathing for the floor diaphragm and roof. Phase Two testing added non-structural components like stairs, gypsum sheathing and interior partitions.
The building did exceptionally well during the final shake-up on August 16. Watch the final shake table tests from inside the structure, which duplicated a 1.1g MCE-level earthquake. (Click here).
An excellent overview of the research and expected results, as well as a video interview with team leader Benjamin Schafer, Ph.D., P.E., is available on The Johns Hopkins University website. Click here to view.
Keep up with all developments on the project's daily blog), a general description of the project and partners, and more detailed research overviews and results.
Join the Dialogue on Integration for the Built Environment, October 15-16! Discuss life cycle analysis tools and emerging new technologies for a sustainable building environment at Converge 2013 in Vancouver.
7/25/2014 - Two research papers presented at Quake Summit 2014 prove that engineers and builders have significantly underestimated the seismic strength of cold-formed steel structures.
7/23/2014 - The webinar will review the applicable design provisions for built-up compression members and built-up flexural members for AISI S100, AISI S211, and AISI S212.