AISI Standards Council Establishes Emeritus Membership Category; Inducts Two Members

WASHINGTON, D.C., September 26, 2011 –The American Iron and Steel Institute (AISI) Standards Council has established an Emeritus Membership category to recognize the contributions of longstanding members of its Committee on Specifications for Cold-Formed Steel Structural Members (COS) and Committee on Framing Standards (COFS). The committees inaugurated members into this additional membership category at their meeting held on July 25-28, 2011 in Cleveland, Ohio.

Wei-Wen Yu, Ph.D., P.E. and Duane Ellifritt, Ph.D., internationally recognized pioneers in cold-formed steel design, have been named as the first two Emeritus Members.

“The Emeritus Membership category allows our industry to give special recognition to our dedicated long-term members who still have much to contribute to our industry,” Jay Larson, P.E., F. ASCE, Managing Director, Construction Technical Program, said. “It will also give our newer members the benefit of interacting with those who have developed new technologies and practices in cold-formed steel building design.” Larson said that the Emeritus Membership is for an initial period of four years with subsequent appointments assessed every two years. Emeritus Members are not part of the voting main committee roster, but are encouraged to participate in committee and subcommittee activities.

“We are honored to welcome Dr. Wei-Wen Yu and Dr. Ellifritt as our first Emeritus Members,” Larson said.  “Both of these individuals have made significant innovations in cold-formed steel building design and are revered by their colleagues who have served throughout the years as members of the AISI Committee on Specifications. We are pleased that our industry will continue to benefit from their vision and guidance in an advisory capacity.”

About Wei-Wen Yu
Wei-Wen Yu, Ph.D., P.E. is recognized in the engineering community for his defining research in cold-formed steel design. He is the author of the premier textbook on cold-formed steel, “Cold-Formed Steel Design,” which is now in its fourth edition. In 1990, he founded the Wei-Wen Yu Center for Cold-Formed Steel Structures at the Missouri University of Science and Technology, which was named for him in 2000.  He retired from the AISI Committee on Specifications in 2010 after 50 years of service.


About Duane Ellifritt
Duane Ellifritt, Ph.D., was an engineer with Armco and served on the faculty of Oklahoma State University. He was Professor Emeritus in the Structures Division of the University of Florida. Dr. Ellifritt was the first full-time director of research and engineering for the Metal Building Manufacturers Association (MBMA).

The AISI Standards Council was established in 2008 to consolidate the administration of the Committee on Specifications for Cold-Formed Steel Structural Members and the Committee on Framing Standards. The primary responsibilities of the AISI Standards Council are to maintain the ANSI (American National Standards Institute) accreditation and ensure compliance with operating procedures, maintain an efficient and effective committee leadership structure, and initiate and manage standards development projects.

AISI’s codes and standards work is conducted under the Construction Market Council of the Steel Market Development Institute (SMDI), a business unit of AISI, which oversees the industry’s investment in advancing the competitive use of steel by meeting the demands of the marketplace. For more information on SMDI’s Construction Market program, visit

AISI serves as the voice of the North American steel industry in the public policy arena and advances the case for steel in the marketplace as the preferred material of choice. AISI also plays a lead role in the development and application of new steels and steelmaking technology. AISI is comprised of 25 member companies, including integrated and electric furnace steelmakers, and 118 associate and affiliate members who are suppliers to or customers of the steel industry. AISI's member companies represent approximately 80 percent of both U.S. and North American steel capacity. For more news about steel and its applications, view AISI’s Web site at

Debbie Bennett
Manager, SMDI and Construction Communications
Steel Market Development Institute
Tel: 202.452.7179