This paper analyzed the effects of rotational stiffness of wedge connection between vertical and horizontal members of system supports. By simulating the connection condition both a hinge connection, which is considered in the design stage, and a spring with the rotational stiffness reflecting the actual behavior, the critical buckling load and the maximum combination stress ratio are compared. The results show that hinge condition somewhat underestimate the actual behavior of vertical members of system supports. However, it is also noted that the horizontal member represents the increased stress due to the rotational stiffness of the connection.

• 이형도(충북대학교 안전공학과) | Lee, Hyung Do
• 장남권(충북대학교 안전공학과) | Jang, Nam Kwon
• 김경윤(한국생명공학연구원 국가연구안전관리본부 연구원) | Kim, Gyeong Yun
• 원정훈(충북대학교 안전공학과) | Won, Jeong-Hun 교신저자