ABSTRACT
This paper reports test results for KK-joints under anti-symmetrical axial brace loads. Nine specimens that have varied geometrical parameters were tested. The test results showed that the ultimate capacity was governed by local deformations of the chord wall similar to those observed in uni-planar K-joints although crack locations occurred around the weld toes varied depending on longitudinal and transverse gap sizes. The ultimate capacity of these joints was found to be predictable by utilizing the ultimate capacity equation for uniplanar K-joints.
