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It is informational only and not an official part of the standard the full text of the standard itself must be referred to for its use and application. This abstract is a brief summary of the referenced standard. Report shall indicate all specimens meeting the requirements of this specification if the screw penetrated the steel and the screw spin out or shall indicate all specimens failing if the screw did not penetrate the steel, or the screw spun out. If more than one test specimen fails to meet the requirements, two more test specimens shall be chosen for retesting. Five specimens of members shall be tested.
Penetration test method provides a procedure for evaluating the member's ability to pull the head of a screw below the surface of the gypsum panel product. The steel members shall be free of defects that interfere with the purpose for which they are intended. The properties and strength of members shall be computed in accordance with the given specification. Members shall be manufactured from steel meeting the requirements specified. Steel of lesser thickness shall be permitted in additional engineered products. This specification covers steel studs, runners (tracks), and bracing or bridging for screw application of gypsum panel products and metal plaster bases in load-bearing construction assemblies.
AISI’s membership is comprised of integrated and electric furnace steelmakers, and associate members who are suppliers to or customers of the steel industry. For more news about steel and its applications, view AISI’s website at or. AISI also plays a lead role in the development and application of new steels and steelmaking technology. “We are developing a roadmap for additional research needed to make steel more competitive in this area.”ĪISI 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 cold formed steel framing code#
“The findings from AISI RP20-2 are significant because they will help equip users with the tools to make more accurate evaluations of cold-formed steel framing for clear wall assemblies that meet energy code analysis and compliance,” said Jay Larson, P.E., F.ASCE, managing director of AISI’s Construction Technical Program.
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Previously, the procedures were cumbersome and included: (1) a series path procedure to correct for parallel path thermal bridging which had limited lookup, (2) the modified zone method which was restricted in scope, and (3) sophisticated two- and three-dimensional computer simulation programs which required technical expertise to use. oc), designation thicknesses (33, 43, 54 and 68 mils), cavity insulation (R-0 to R-38) and insulated sheathings (R-0 to R-20).
The results address five key constructions: nominal stud dimensions (2×4, 2×6, 2×8, 2×10 and 2×12), stud spacings (6 in. The new standard, AISI S-250, North American Standard for Thermal Performance of Building Envelopes with Cold-Formed Steel, is being prepared for public review as part of the consensus process.ĪISI RP20-2 delivers a simplified calculation procedure that can be easily used by architects, engineers and building owners to evaluate building envelope designs that demonstrate compliance with energy codes such as ASHRAE Standard 90.1, the International Energy Conservation Code, and state/local adopted energy codes. In addition to its work in research and development, AISI is an American National Standards Institute (ANSI)-accredited developer of American National Standards. The research was undertaken to support a new energy standard being developed by AISI’s Committee on Framing Standards.
#Aisi cold formed steel framing for free#
– The American Iron and Steel Institute (AISI) has published a new cold-formed steel framing research report, “ AISI RP20-2: Development of a U-Factor Calculation Procedure for Cold-Formed Steel C-Shaped Clear Wall Assemblies.” The report is available for free download at.
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