Some researchers suggested that bolt slippage occurred in column-tree connection type. In this paper, bolt slippage was evaluated on different depth of beam. When the length of beam set 7,500 mm equally, three depth of beams was 600, 500, 400mm, respectively. Also, column size of all specimens was same, and panel zones was strongly reinforced to evaluate bolt slippage in beams. As a result of full-scale testing, the bolt slippage of all specimens was occurred within plastic rotation ± 2.0%. It was showed that the effect of bolt slippage on depth of beam was slight.

• 이강민(충남대학교 건축공학과 교수, 공학박사) | Lee, Kangmin 교신저자
• 소재혁(충남대학교 토목공학과, 석사과정) | So, Jaehyuk
• 오근영(충남대학교 건축공학과, 박사과정) | Oh, Keunyeong