RR 22.10.00-3.2 Single Angle Brace Members in AISC 360-16
The engineer now has control over the use of how the provisions of Section E5 are applied to the design of single angle members in compression per AISC 360-16.
Previously, it was assumed that all of the conditions for single angle members were met such that the effects of eccentricity could be ignored and that the effective slenderness ratio may be used. Further, it was assumed that any single angle was an individual member and that the modified slenderness ratio of Cl. E5(a) always applied. These are conservative assumptions and may result in sections that are not the most economical. Therefore, two new parameters have been added which allow the engineer to control the specifics of how single angle members in compression are designed per E5.
- 1) Members are loaded at the ends in compression through the same leg.
- 2) Members are attached by welding or by connections with a minimum of two bolts.
- 3) There are no intermediate transverse loads.
- individual members or are web members of planar trusses (in which case, Cl. E5(a) applies - IMM 0)
- web members of box or space trusses (in which case, Cl. E5(b) applies - IMM 1)