In reinforcing the patch plates to the damaged member of the bridge, Single-sided construction is desired in some cases. The high-strength stud bolt welds the bolt directly to the plate, enabling single-sided construction. However, there are only a few examples of one side frictional joints with high strength stud bolts, and it is desirable to accumulate data of them. We conduct slip test of one side frictional joints with high strength bolts (F8T) and high strength stud bolts (S8T), and compare and examine their mechanical behavior. As a result of the slip test, their slip coefficient was 0.4 or more. The same tendency as the slip behavior of one side frictional joints with high strength bolts (F8T) was seen.
