抄録
In strength design of bolted joints subject to impact load, tightening was performed initial tightening force of bolted joints in the elastic area, and the additional force by impact load are experimentally considered from the study result. From the viewpoint of guideline for design of bolted joints, the permissible maximum external force should determined, assuming that initial tightening force of bolt lowered by external impact load should be under 10%. And the result clarified that the maximum impact load (external force) would be allowed up to 54 thru 65% of yield point force of bolt.
