AISI S212-07 PDF

AISI S—07 () AISI STANDARD North American Standard for. Cold- Formed Steel Framing— Header Design Edition (Reaffirmed ). Revision. AISI S Header Design *. – AISI S Lateral AISI S Prescriptive Method for One and Two . G, Using Chapter F of the NA Specification for the. The Standard for Cold-Formed Steel Framing – Header. Design(AISI S) is aimed at giving design professionals the tools they need to design headers.

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Connection design is limited to primarily a discussion of screw connections.

It outlines the scope, asi is for design and installation of cold-formed steel framing of a floor and roof systems, b structural walls, c shear walls, strap braced walls, and diaphragms to resist in-plane lateral loads, and d trusses for load-carrying purposes in buildings.

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These cold-formed steel framing standards are available as free downloads at www. Sheathing and discrete bracing.

For roof or floor diaphragms with a maximum aspect ratio of 4: The previous design standards limited their application to framing members having a maximum base steel thickness to mils 0.

Leave a Comment Click here to cancel reply. Iasi new standard includes design provisions for wall systems, floor and roof systems, lateral aisl systems, as well as truss and header assemblies. The chapter also includes:. The ends of a built-up compression member are connected by a weld having a length not less than the maximum width of the member or by connectors spaced longitudinally not more than 4 diameters apart for a distance equal to 1.

This appendix contains requirements for the determination of the rotational stiffness that structural sheathing provides to framing members to facilitate the design for distortional buckling. This limitation has been eliminated from AISI S; however, it should be remembered that mils is still the maximum thickness of standard products in the United States and 97 mils 0.

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Permanent link to this article: The other standards addressed such topics as a code of standard practice, the definition of standard product, and prescriptive design for residential applications. However, AISI S now incorporates an exception for a built-up axial load bearing section comprised of two studs oriented back-to-back forming an I-shaped cross-section.

This chapter provides installation requirements previously contained in the various framing standards. But, why would AISI develop six discrete s221-07 standards as opposed to one design manual? The effective strip method is permitted to be used within the following range of parameters:. The list of these standards, aiei well as other excellent design guides, are provided.

This document is intended to serve only as an educational tool. Effective strip method model for steel-sheet sheathing. The commentary and explanatory language is identified by a vertical black line along the right margin. Flexural Members Chapter E: For curtain wall systems, the standard now permits the use of the bracing combination of sheathing attached to one side of the wall stud and discrete bracing for the other flange Figure 1.

Design Documents

The exception applies where the built-up section is seated properly in a track, and the top and bottom end bearing detail of the studs consists of a steel or concrete support with adequate strength and stiffness to preclude relative end slip of the two built-up stud sections.

This chapter contains design provisions for cold-formed steel framing members and assemblies, as previously included in AISI S, S, S, and S Inthe manufacturing tolerance values were extended to the flange width and stiffening lip length. ASTM C has historically stipulated manufacturing tolerances for cold-formed steel structural framing members. Also, for ease of use, S contains a section reference table between the S provisions and the previous provisions Table 2. Although the AISI Specification had gained acceptance and was in widespread use, there were a number of design issues that were not adequately addressed for this emerging market.

This new chapter lists applicable AISI test standards for cold-formed steel framing members, connections, and systems. The use of ASTM E results in higher nominal shear strength values as compared with the cantilever test method historically used for steel deck diaphragms.

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The truss component structural performance load test and full-scale truss confirmatory test methods, previously included in AISI S, are provided in this appendix.

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STRUCTURE magazine | Cold-Formed Steel Framing Standards

This article focuses on AISI S which applies to cold-formed steel structural members subject to gravity loading, wind loading, and seismic loading, except when specific seismic detailing is required.

From tothe AISI Committee on Framing Standards developed nine different framing standards to cover specific aspects of cold-formed steel framing. Additional explanatory language is also provided. The document addresses the design for a C-shaped cross section as a flexural member and a compression member.

Therefore AISI extended its standards development activity to support the growing needs of the cold-formed steel framing industry. Format defines design considerations.

Your message Submit Comment. This chapter contains design, manufacturing quality criteria, and installation requirements for cold-formed steel trusses as previously included in AISI S Six of these standards addressed the design of structural elements, such as general provisions, wall studs, floor joists, trusses, headers, and shear walls. The method assumes a sheathing strip carries the lateral load via tension field action.

This newly developed chapter provides minimum requirements for quality control and quality assurance for material control and installation for cold-formed steel light-frame construction. This has been an often d212-07 question by framing design engineers. The scope was selected to provide coverage of the high volume application of cold-formed steel in light-framed construction.