高力ボルト摩擦接合継手のリラクセーション試験における試験期間の考察

抄録

Relaxation of high strength bolted joints causes large bolt pretension loss at an initial stage of relaxation. However, the detailed characteristics over a long time period had not been clarified. In this study, relaxation tests were carried out in high strength bolted joints. Then, we investigated characteristics of bolt pretension loss of relaxation over a long time period by literature search. From these results, we discussed the testing period for relaxation tests in high strength bolted joints.