Abstract
To curtail a term of work in erection of a steel frame and reduce its erection cost, we have developed a fastening device having a simple mechanism that can be used in erecting steel columns. In construction of the erection with this device, steel columns can be erected vertically in the beginning, and thus steel beams can be easily put into connection at predetermined positions. The developed device makes use of high strength bolted friction joints with oversize holes. The following report is describing, (1) Construction and feature of this device, (2) Repeated use, and (3) Safety using this device.
