When carrying out code checks to AISI, Steel Designer uses the following clauses of to check your structure. No other checks are performed unless they are specifically listed below.

AISI: “North American Specification for the Design of Cold-formed Steel Structural Members ", AISI Standards, 2001 Edition.

Clauses used are C2~C5.

The design checking procedure is as follows;

The design actions are calculated through the first order analyses and a second order analysis should be used for sway frames.

For major and minor bending section checks, the design bending moment is checked to be less than the nominal section moment design capacity as found using clause C3.

For bending member checks, the design bending moment about the major principle axis is checked to be less than the nominal member moment design capacity as found using clause C3.1.

For major and minor shear checks, the design shear force is checked to be less than the nominal shear capacity found from section C3.2.

For tension checks, the design axial tension force is checked to be less than the nominal section design capacity in tension as computed using clause C2.

For compression section checks, the design axial compressive force is checked to be less than the nominal section design capacity in compression as computed using clause C4.

For major and minor compression member checks, the design axial compressive force is checked to be less than the nominal member design capacity in compression as computed using clause C4.1~C4.6.

For all combined action section checks, the design axial force (P*) is the maximum axial force in the member, and the design bending moments (Mx*, and My*) are the maximum bending moments in the member.

For major and minor combined section checks, the design bending moment is checked to be less than the nominal section moment design capacity reduced by axial force (compression or tension) as computed using clause C5.