Effect of angle on the strength of overlapped RHS K- and X-joints

A finite element approach is used to examine the effect of angle on the strength of partially overlapped RHS isolated K joints, allowing for the sense of branch loading, and chord reaction. Modes of failure are identified from joint distortion displays and von Mises plots. Significant differences are identified depending on the sense of loading, and the method of supporting the chord. Comparisons are made with design recommendations.