APPLICABILITY OF TURN-OF-NUT BOLTING METHOD FOR FRICTION TYPE CONNECTION BY F10T HIGH STRENGTH BOLT

Abstract

 This paper is an experimental research study aimed at the future realization of tightening of the F10TW by the nut rotation method in the actual work. In this study, using a bolted joint test body with a pressure film type inorganic zinc rich paint on the contact surface, an introduction axial force test and a relaxation test were conducted to examine the nut rotation angle that can satisfy an appropriate bolt axial force. Also, the slip resistance was clarified.