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http://dx.doi.org/10.5000/EESK.2007.11.5.001

Performance Evaluation of Inelastic Rotation Capacity of Reinforced Concrete Beam-Column Connections  

Lee, Ki-Hak (세종대학교 건축공학과)
Woo, Sung-Woo (한화건설 건축기술팀)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.11, no.5, 2007 , pp. 1-9 More about this Journal
Abstract
This study summarizes the results of a research project aimed at investigating the inelastic rotation capacity of beam-column connections of reinforced concrete moment frames. A total of 91 test specimens for beam-column joint connections were examined in detail, and 28 specimens were classified as special moment frame connections based on the design and detailing requirements in the ACI 318-02 Provisions. Then the acceptance criteria, originally defined for steel moment frame connections in the AISC-02 Seismic Provisions, were used to evaluate the joint connections of concrete moment frames. Twenty-seven out of 28 test specimens that satisfy the design requirements for special moment frame structures provide sufficient strength and are ductile up to a plastic rotation of 0.03 rad. without any major degradation in strength. Joint shear stress, column-to-beam flexural strength ratio, and transverse reinforcement ratio in a joint all play a key role in good performance of the connections.
Keywords
RC structures; inelastic rotation capacity; joint shear stress; beam-column connections; column-to-beam flexural strength ratio;
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