High-strength bolt has high stiffness and fatigue strength. At this time, initial axial force is one of main factor to affect the strength and deformation behavior of connection. Therefore, the objective of this study is to investigate reduction of initial axial force in high-strength bolt under shear fatigue.

• 이강민(충남대학교 건축공학과 교수, 공학박사) | Lee Kangmin 교신저자
• 하헌준(충남대학교 건축공학과, 석사과정) | Ha Heon-Jun
• 오근영(충남대학교 건축공학과, 박사과정) | Oh Keunyeong
• 소재혁(충남대학교 건축공학과, 석사과정) | So Jaehyuk