Bolted girder connections resist the applied bending moment through the cooperation of flange and web resistances. The present study focuses on the cooperative slip behavior of high-strength frictional bolted connections in an Igirder. In the present study, FEA of various cross-sectional dimensions of the web splice, having various bolt arrangements of the web splice, and various number of bolts in the flange and web splices have been conducted to quantitatively evaluate the cooperative slip behavior of the girder connections. From obtained results, as the bolt spacing of the web splice increased and the number of bolt rows of the web splice decreased, the ratio of the frictional force to the design slip resistance of the web increased.
