Evaluating Single Angle Compression Struts Using An Effective Slenderness Approach

This paper describes a simple procedure for evaluating the capacity of single angle compression struts that are supported at each end by one leg to a gusset plate or directly to a leg or stem of the chord of a truss. This procedure allows the single angle to be treated for analysis and design as a pinned-end axially loaded compression member by use of an effective slenderness ratio. The procedure considers two levels of end restraint and addresses both equal and unequal-leg angles. This procedure has been added for use in the 2005 version of the American Institute of Steel Construction Specification for Structural Steel Buildings (AISC, 2005).