AISI S213-07 PDF

(This document is an excerpt from AISI S North American Standard for Cold Formed Steel Framing – Lateral. Design for convenience only, and should be. Documento 8 – AISI S Standard and Commentary – Committee Use (11!27! 07) – Download as PDF File .pdf), Text File .txt) or read online. AISI S/S ().iv Steel Framing Alliance and the Canadian Sheet Steel Building Institute. North American Standard For Cold-Formed Steel Framing .

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Effective strip method model for steel-sheet sheathing. This chapter provides installation requirements previously contained in the various framing standards. The truss component structural performance load test and full-scale truss confirmatory test methods, previously included in AISI S, are provided in this appendix. The effective strip method is permitted to be used within the following range of parameters:.

STRUCTURE magazine | Cold-Formed Steel Framing Standards

This computational method is applicable for walls sheathed with steel sheet. Section reference table S and previous standard. Format defines design considerations. This new exception provides for a more economical built-up member, as is often used as a jamb stud or shear wall boundary member. 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.

But, why would AISI develop six discrete framing standards as opposed to one design manual? The other standards addressed such topics as a code of standard practice, the definition of standard product, and prescriptive design for residential applications. 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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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.

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. From tothe AISI Committee on Framing Standards developed nine different framing standards to cover specific aspects of cold-formed steel framing. 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.

The simple reason is, it was easier to develop small single-topic documents versus a more comprehensive multi-topic document.

Inthe manufacturing tolerance values were extended to the flange width and stiffening lip length. 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. The chapter also includes:.

This new standard includes design provisions for wall systems, floor and roof systems, lateral force-resisting systems, as well as truss and header assemblies. 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.

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. Beneficial 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.

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ASTM C has historically stipulated manufacturing tolerances for cold-formed steel structural framing members. First Name Last Name.

AISI Cold-Formed Steel Standards are Offered Free of Charge for Downloading

For roof or floor diaphragms with a maximum aspect ratio of 4: Six of these standards addressed the design of structural elements, such as general provisions, wall studs, floor joists, trusses, headers, and shear walls. Sheathing and discrete bracing.

These cold-formed steel framing standards are available as free downloads at www. 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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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. Your message Submit Comment. Also, for ease of use, S contains a section reference table between the S provisions and the previous provisions Table 2.

Aiisi a Comment Click here to cancel reply. The previous design standards limited their application to framing members having a maximum base steel thickness to mils 0. This method provides an alternative approach to determine the shear wall strength, especially for those that are outside the limitations of the tested systems. The discrete braces are limited to not greater than 8 feet 2.