環境配慮型高力ボルトを用いた摩擦接合継手のすべり挙動に関する実験的研究

抄録

In this study, slip tests were conducted to evaluate the slip behavior of high - strength friction joints using environmentally conscious high -strength bolts (CEB). Four joint conditions were considered: rough surface, inorganic zinc coating, enlarged hole, and enlarged hole with bolt eccentricity. Comparative tests were performed using both the CEB and conventional high-strength hexagon bolts (HTB). As a result, the CEB showed slightly higher axial force relaxation and slightly lower slip coefficients compared to the HTB, but the differences were small, with a maximum of 4%. These findings confirm that the CEB provides slip performance equivalent to that of the HTB.