AISI S, North American Specification for the Design of Cold-Formed Steel AISI S, North American Standard for Cold-Formed Steel Framing. AISI S/S AISI STANDARD Supplement No. 2 to the North American Specification for the Design of Cold-Formed Steel Structural Members, Free AISI Standards click here; Construction Details click here; Design Guides click here; Issue Papers click here; Research Reports click here; Technical Notes .
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AISI serves zisi the voice of the North American steel industry in the public policy arena and plays a lead role in the development and application of new steels and steelmaking technology. All the test standards have been updated, and six new test standards have been added.
See Model Display Options — Members to learn how to view the code check results graphically. A value of 60 is s10-07 per the AISI code for aisi s elements and elements stiffened with simple lips.
See Moving Loads to learn more. Part V, Supplementary Information — Contains a table of Specification cross-references to examples provided in the Design Manual, design procedures not included in the Specification, aisi s additional information to aisu users of cold-formed steel.
The Mn values are calculated aisi s Section C3. If the fastener spacing does not satisfy the aforementioned conditions, the global buckling stress of the built-up aisi s is calculated based on the section properties of the individual stud members.
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Aisi s — The effective Area calculated at stress Fn, where Fn is the nominal aisi s stress. It provides the latest design information for conformance with AISI S, as well as new improvements and additions.
The Mn values are calculated based on Section C3. Cold formed shape properties are available in the database and the values are based on aisi s AISI s manufacturer values, whichever is selected See Cold Formed Steel Database.
This means secondary torsional moments that may occur if the load is not applied through the shear center are not considered.
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Nine examples have been added to illustrate the new design provisions introduced in the Specification. AISI is comprised of 24 member companies, including integrated and electric furnace steelmakers, and associate and affiliate members who are suppliers to or customers of the steel industry. The value of r min is used rather than the geometric r x and r y values. These also are influenced by the sway flag settings.
All conditions listed for the use of C3. Refer to the Member Detail Report for more information on the values used to perform the code check.
Below is an example showing the slenderness checks for a CU and CS shape:. Compression Pn is calculated per Section C4. The R Asi for cold formed steel design is described in section D6. Aisi s — The effective Area used in determining the nominal strength of the section, where the maximum stress is the yield stress.
Part IV, Connections — Contains tables to aid in connection design and example problems. The aisi s Shape or Section Set is reported in the second column. See the Unbraced lengths for Cold Formed Steel section for the full details.
Part I, Dimensions and Properties – Contains information on the availability and properties of steels referenced in the North American Specification AISI Stables of section properties, and formulas and examples of calculations of section properties. It is available for purchase online at www. Z sections in compression are assumed to buckle in Euler buckling about their weakest principal axis. This will be one of the equations from Section C5 or Section C3.
If a value is entered by the user, that value will be used s the program in the moment capacity calculation of the member. The image below is aisi s last portion of a detail report for a Cold Formed Steel member showing the member warnings, code checks, s section properties.
H Shapes — Hat aisi s in bending about the y-y axis such that the brims are in compression are assumed braced such that the brims cannot each fail aisi s lateral torsional buckling independently.
For the aisi s formed codes, Cb Coefficients are used in the aisi s of the nominal flexural strength, Mn. There are several tables and charts that also serve as s tools for engineers to perform cold-formed steel member design. There are also limitations on the connector spacing length s—07 are checked.
AISI Publishes Cold-Formed Steel Design Manual
Kt in section Aidi. Effects of shear stiffeners for section C3. If aiai entries are left blank, they will be automatically calculated.