Reinforcing steel structure at joint of steel structures

The utility model relates to the technical field of steel structures, and provides a reinforcing steel structure at the joint of steel structures, which comprises a mounting frame, an arc-shaped plate I is fixedly connected to the upper end of the mounting frame, an arc-shaped plate II is rotatably connected to the arc-shaped plate I through a rotating shaft, and a connecting plate I is fixedly connected to the right side of the arc-shaped plate I; a second connecting plate is fixedly connected to the right side of the second arc-shaped plate, a clamping block is fixedly connected to the right side of the second connecting plate, a rotating seat is fixedly connected to the right side of the first connecting plate, a rotating rod is rotationally connected to the inner side of the rotating seat, and a connecting seat is rotationally connected to the middle of the rotating rod. According to the device, through cooperation of the first arc-shaped plate, the second arc-shaped plate, the rotating shaft, the first c