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Structural Engineering and Mechanics
  Volume 24, Number 3, October20 2006 , pages 291-306

Bolted end plate connections for steel reinforced concrete composite structures
Xian Li, Yuntian Wu, Weifeng Mao, Yan Xiao, J. C. Anderson and Yurong Guo

    In order to improve the constructability and meanwhile ensure excellent seismic behavior, several innovative composite connection details were conceived and studied by the authors. This paper reports experimental results and observations on seismic behavior of steel beam bolted to reinforced concrete column connections (bolted RCS or BRCS). The proposed composite connection details involve post tensioning the end plates of the steel beams to the reinforced concrete or precast concrete columns using high-strength steel rods. A rational design procedure was proposed to assure a ductile behavior of the composite structure. Strut-and-tie model analysis indicates that a bolted composite connection has a favorable stress transfer mechanism. The excellent capacity and behavior were then validated through five full-scale beam to column connection model tests.
Key Words
    beam-column connection; bolted end plate; hybrid structure; reinforced concrete column; steel beam; seismic design.
Xian Li1, Yuntian Wu2, Weifeng Mao1, Yan Xiao1,2, J. C. Anderson2 and Yurong Guo1
1) College of Civil Engineering, CIPRES, Hunan University, Changsha, China
2) Department of Civil Engineering, University of Southern California, Los Angeles, USA

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