Abstract
This report shows experimental results as for sliding displacement behavior of high-tensile-bolted friction joints under tensile load subjected to high temperatures up to 450℃. After evaluation of the load-sliding displacement curves, the following conclusion could be drawn : 1) There in little difference in the slip loads between tests in a heated state and after cooling. 2) A decrease is slip-load up to 350℃ is little. 3) Above 350℃, there is a rapid decrease in slip-load and the sliploads at 450℃ are 30 to 59 percent of room temperature's. 4) At 250℃ heating condition, there is a large increase in slip-load, in the case of the specimens with comperatively small friction factor at room temperature.
