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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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The scope was selected to provide coverage of the high volume application of cold-formed steel in light-framed construction. However, rather than add to the complexity of the AISI Specification, it was decided that a new family of standards should be developed.

Six of these standards addressed the design of structural elements, such as general provisions, wall studs, floor joists, trusses, headers, and shear walls. 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. This new exception provides for a more economical built-up member, as is often used as a jamb stud or shear wall boundary member. The chapter also includes:. Sheathing and discrete bracing.

For roof or floor diaphragms with a maximum aspect ratio of 4: Therefore AISI extended its standards development activity to support the growing needs of the cold-formed steel framing industry.

This has been an often asked question by framing design engineers. Connection design is limited to primarily a discussion of screw connections. This method provides an s212-70 approach to determine the shear wall strength, especially for those that are outside the limitations of the tested systems.

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Inthe manufacturing tolerance values were extended to the flange width and stiffening lip length.

Format defines design considerations. The list of these standards, as well as other excellent design guides, are provided. This limitation has been s212-077 from AISI S; however, it should be remembered that mils is still the maximum thickness of standard products in the S122-07 States and 97 mils 0. The commentary and explanatory language is identified by a vertical black line along the right margin.

This computational method is applicable for walls sheathed with steel sheet.

Design Documents

This chapter provides installation requirements previously contained in the various framing standards. This new standard includes design provisions for wall systems, floor and roof systems, lateral force-resisting systems, as well as truss and header assemblies. Flexural Members Chapter E: The document addresses the design for a C-shaped cross section as a flexural member and a compression member. From tothe AISI Committee on Framing Standards developed nine different framing standards to cover specific aspects of cold-formed steel framing.

The ends of a built-up compression member are connected by aiwi weld having a length not less than the maximum width of the member or by connectors spaced longitudinally not more ss212-07 4 diameters apart for a distance equal to 1.

Alsi for the design engineer is a new Effective Strip Method that enables the calculation of the nominal in-plane shear wall strength for Type I shear walls Figure 2. First Name Last Name. 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.

STRUCTURE magazine | Cold-Formed Steel Framing Standards

Effective strip method model for steel-sheet sheathing. The truss component structural performance load test and full-scale truss confirmatory test methods, previously included in AISI S, are a212-07 in this appendix.

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Also, for ease of use, S contains a section reference table between the S provisions and the previous provisions Table 2. The method assumes a sheathing strip carries the lateral load via tension field action. These applications include wall, floor and roof framing in a number of building types. 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.

ASTM C has historically stipulated manufacturing tolerances for cold-formed steel structural framing members. For curtain wall systems, the standard now permits the use of the bracing combination of sheathing attached aisj one side of the wall stud and discrete bracing for the other flange Figure 1.

Design Documents » Wei-Wen Yu Center for Cold-Formed Steel Structures

But, why would AISI develop six discrete framing standards as opposed to one design manual? It outlines the scope, which 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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The effective strip method is permitted to be used within the following range of parameters:. The simple reason is, it was easier to develop small single-topic documents versus a more comprehensive multi-topic document.