Abstract
Several studies on the ultimate limit state of the high strength frictional bolted joints considering the behavior after major slip has been conducted. We proposed the deformed bearing limit state as the ultimate limit state of the high strength frictional bolted joints, which is defined by local plastic bolt hole deformation. We also revealed the influence of end distance and bolt pitch on the relationship between bolt hole deformation and the deformed bearing limit stress by tensile tests. In this study, the same tests whose considered parameters are width, thickness, the number of bolts and bolt tensions were conducted to clarify the influence of those on the above relationship focused on the net cross-section yielding and shear yielding of connected plate, and the yielding of high strength bolt. Obtained from the results, it's confirmed that 10% deformed bearing limit stress, when the bolt hole deformation reaches 10% of bolt diameter, is the concave function consisted by the ratio shear failure resistance by net cross-section failure resistance and its ratio to maximizing the bearing stress reach about 1.
