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http://dx.doi.org/10.7781/kjoss.2012.24.3.279

Prediction Model for the Initial Rotational Stiffness of a Double Split T Connection  

Yang, Jae-Guen (인하대학교 건축공학과)
Kim, Yun (인하대학교 건축공학과)
Park, Jae-Ho (인하대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.3, 2012 , pp. 279-287 More about this Journal
Abstract
A double split tee connection is used as a connection that is suitable for ordinary moment frames or special moment frames according to the combination of variables of the thickness of the T-stub flange and the gauge distance of the high-strength bolts. In order to demonstrate safe structural behavior, a double split tee connection must meet the requirements for inter-story drift angles and the moment of connection, as defined in the Korea Building Code-Structural. In order to determine whether the these requirements are met, it is necessary to predict rotational stiffness and the ultimate plastic moment of the connection. Therefore, this study primarily aimed to propose an analytical model for predicting the rotational stiffness of a double split tee connection under a static load. Toward this end, a three-dimensional, non-linear finite element analysis was carried out. Then, the applicability of the proposed model was verified after comparing the test results of this study with other studies.
Keywords
double split Tee connection; initial rotational stiffness; ultimate plastic moment; three-dimensional nonlinear finite element analysis;
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