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Evaluation of the Initial Rotational Stiffness of a Double Split Tee Connection

상·하부 T-stub 접합부의 초기회전강성 평가

  • Kim, Hee Dong (Department of Architecture, Inha Technical College) ;
  • Yang, Jae Guen (Department of Architectural Engineering, Inha University) ;
  • Lee, Jae Yun (Department of Architectural Engineering, Inha University) ;
  • Lee, Hyung Dong (Department of Architectural Engineering, Inha University)
  • Received : 2014.03.12
  • Accepted : 2014.04.10
  • Published : 2014.04.27

Abstract

Double split tee connection is a full strength-partial restrained connection that suitable for ordinary moment frame and special moment frame which demonstrates behavior characteristics depending on the stiffness ratio of columns and beams, changes in the geometric shape of the T-stub, number of fasteners and effect of panel zone. For the double split tee connection to ensure structurally safe behavior, it needs to exhibit sufficient strength, stiffness and ductile capacity. This study sought to investigate the effects of the moment-rotation angle relationship of the double split tee connection and to evaluate the initial rotational stiffness of the double split tee connection depending on changes in the geometric shape of the T-stub. To this end, two different double split tee connection specimens are experimented which designed to change geometric parameter values (${\alpha}^{\prime}$) of the T-stub, and a three-dimensional finite element analysis was performed.

Acknowledgement

Supported by : 한국연구재단

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