Techno Press

Steel and Composite Structures   Volume 17, Number 1, July 2014, pages 83-103
Stiffener configurations of beam to concrete-filled tube column connections
Abdelrahim K. Dessouki, Ahmed H. Yousef and Mona M. Fawzy

Abstract     [Full Text]
    The objective of this research is to study the ultimate moment capacity of the connections between steel I-beams and concrete-filled steel tube columns using different stiffener configurations. The main parameters considered are column cross section shape, square or circular, and filling the column with concrete. This analytical study includes finite element models using ANSYS program taking geometric and material nonlinearities into consideration. These models are verified against the experimental results obtained from previous researches and current design guides. The results show that using proper stiffener configuration affects the stress distribution through the connection and increases the ultimate moment capacity of the connections. Also, circular column is advantageous than the square column for all stiffener configurations and dimensions.
Key Words
    concrete-filled steel tubes; square columns; circular columns; finite element analysis; stiffener configurations; ultimate strength; moment connections
Structural Engineering Department, Faculty of Engineering, Ain Shams University, Egypt.

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