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Cold-formed steel is a widespread construction material. A recent technical note outlines antiterrorism guidelines for CFS framing.
A tech note on antiterrorism Engineering duo publishes a report on cold-formed steel and how it can be used to make buildings more resistant to the external blast from a terrorist attack.
By RICHARD MASSEY Managing Editor
also comes as engineers, contractors, and develop- ers are searching for ways to make structures more durable in an uncertain age. Evan as he developed the technical paper, Rahman conducted multiple seminars on cold-formed steel and blast protec- tion. “This technical note guides engineers on where they need to go,” Rahman says. “I wanted to share this information and not keep it for myself.” The report focuses on external blast, standoff dis- tances, controlled perimeters, windows, static and dynamic design, stud framing, Unified Facilities Criteria 4-010-01, and basic equations that deter- mine building specifications. In the introduction, Rahman and O’Laughlin spell out why they wrote the report. “Understanding and implementing antiterrorism requirements into cold-formed steel framing de- sign can be a daunting task for a designer,” they write. “The building can be subject to different AT requirements depending on whether it is owned by the Federal Government or by the private sector.
T he Cold-Formed Steel Engineers Institute re- cently released a technical note that should make it easier to design and build structures with exterior blast protection against terrorist attacks, and the information is good for both the public and private sectors. “This technical note guides engineers on where they need to go. I wanted to share this information and not keep it for myself.” The technical note, Antiterrorism Design Require- ments for Cold-Formed Steel Framing , was co-au- thored by Nabil Rahman of the Steel Network Inc., and Casey O’Laughlin of Jacobs Technology , and comes at a time when terrorism is increasingly seen as a fact of life, not a fleeting aberration.
Nabil Rahman, Director of Engineering and R&D, The Steel Network Inc.
Ady Aviram, Ph.D., SGH
Eighteen months in the making, the technical note
THE ZWEIG LETTER August 22, 201
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