ABSTRACT
The tests compared the behavior of the connections without any column reinforcement to connections with flange continuity plates and connections with web doubler plates. Each connection was subjected to seven cycles of motion and was tested to at least 2% rotation to simulate expected rotation/drift in actual frame structures. Small rotations illustrated stress concentrations in beam and column flanges at complete penetration welded joints. Shear yielding in column webs could also be seen at small rotations. As larger rotations were imposed and connections were subjected to further cyclic motion, high material stress concentrations turned into fractures.
